Table of contents for issues of Scientific American

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Volume 102, Number 1, January 1, 1910
Volume 102, Number 10, March 5, 1910
Volume 102, Number 11, March 12, 1910
Volume 102, Number 12, March 19, 1910
Volume 102, Number 13, March 26, 1910
Volume 102, Number 14, April 2, 1910
Volume 102, Number 15, April 9, 1910
Volume 102, Number 16, April 16, 1910
Volume 102, Number 17, April 23, 1910
Volume 102, Number 18, April 30, 1910
Volume 102, Number 19, May 7, 1910
Volume 102, Number 2, January 8, 1910
Volume 102, Number 20, May 14, 1910
Volume 102, Number 21, May 21, 1910
Volume 102, Number 22, May 28, 1910
Volume 102, Number 23, June 4, 1910
Volume 102, Number 24, June 11, 1910
Volume 102, Number 25, June 18, 1910
Volume 102, Number 26, June 25, 1910
Volume 102, Number 3, January 15, 1910
Volume 102, Number 4, January 22, 1910
Volume 102, Number 5, January 29, 1910
Volume 102, Number 6, February 5, 1910
Volume 102, Number 7, February 12, 1910
Volume 102, Number 8, February 19, 1910
Volume 102, Number 9, February 26, 1910
Volume 103, Number 1, July 2, 1910
Volume 103, Number 10, September 3, 1910
Volume 103, Number 11, September 10, 1910
Volume 103, Number 12, September 17, 1910
Volume 103, Number 13, September 24, 1910
Volume 103, Number 14, October 1, 1910
Volume 103, Number 15, October 8, 1910
Volume 103, Number 16, October 15, 1910
Volume 103, Number 17, October 22, 1910
Volume 103, Number 18, October 29, 1910
Volume 103, Number 19, November 5, 1910
Volume 103, Number 2, July 9, 1910
Volume 103, Number 20, November 12, 1910
Volume 103, Number 21, November 19, 1910
Volume 103, Number 22, November 26, 1910
Volume 103, Number 23, December 3, 1910
Volume 103, Number 24, December 10, 1910
Volume 103, Number 25, December 17, 1910
Volume 103, Number 26, December 24, 1910
Volume 103, Number 27, December 31, 1910
Volume 103, Number 3, July 16, 1910
Volume 103, Number 4, July 23, 1910
Volume 103, Number 5, July 30, 1910
Volume 103, Number 6, August 6, 1910
Volume 103, Number 7, August 13, 1910
Volume 103, Number 8, August 20, 1910
Volume 103, Number 9, August 27, 1910
Volume 104, Number 1, January 7, 1911
Volume 104, Number 10, March 11, 1911
Volume 104, Number 11, March 18, 1911
Volume 104, Number 12, March 25, 1911
Volume 104, Number 13, April 1, 1911
Volume 104, Number 14, April 8, 1911
Volume 104, Number 15, April 15, 1911
Volume 104, Number 16, April 22, 1911
Volume 104, Number 17, April 29, 1911
Volume 104, Number 18, May 6, 1911
Volume 104, Number 19, May 13, 1911
Volume 104, Number 2, January 14, 1911
Volume 104, Number 20, May 20, 1911
Volume 104, Number 21, May 27, 1911
Volume 104, Number 22, June 3, 1911
Volume 104, Number 23, June 10, 1911
Volume 104, Number 24, June 17, 1911
Volume 104, Number 25, June 24, 1911
Volume 104, Number 3, January 21, 1911
Volume 104, Number 4, January 28, 1911
Volume 104, Number 5, February 4, 1911
Volume 104, Number 6, February 11, 1911
Volume 104, Number 7, February 18, 1911
Volume 104, Number 8, February 25, 1911
Volume 104, Number 9, March 4, 1911
Volume 105, Number 1, July 1, 1911
Volume 105, Number 10, September 2, 1911
Volume 105, Number 11, September 9, 1911
Volume 105, Number 12, September 16, 1911
Volume 105, Number 13, September 23, 1911
Volume 105, Number 14, September 30, 1911
Volume 105, Number 15, October 7, 1911
Volume 105, Number 16, October 14, 1911
Volume 105, Number 17, October 21, 1911
Volume 105, Number 18, October 28, 1911
Volume 105, Number 19, November 4, 1911
Volume 105, Number 2, July 8, 1911
Volume 105, Number 20, November 11, 1911
Volume 105, Number 21, November 18, 1911
Volume 105, Number 22, November 25, 1911
Volume 105, Number 23, December 2, 1911
Volume 105, Number 24, December 9, 1911
Volume 105, Number 25, December 16, 1911
Volume 105, Number 26, December 23, 1911
Volume 105, Number 27, December 30, 1911
Volume 105, Number 4, July 22, 1911
Volume 105, Number 5, July 29, 1911
Volume 105, Number 6, August 5, 1911
Volume 105, Number 7, August 12, 1911
Volume 105, Number 8, August 19, 1911
Volume 105, Number 9, August 26, 1911
Volume 106, Number 1, January 6, 1912
Volume 106, Number 10, March 9, 1912
Volume 106, Number 11, March 16, 1912
Volume 106, Number 12, March 23, 1912
Volume 106, Number 13, March 30, 1912
Volume 106, Number 14, April 6, 1912
Volume 106, Number 15, April 13, 1912
Volume 106, Number 16, April 20, 1912
Volume 106, Number 17, April 27, 1912
Volume 106, Number 18, May 4, 1912
Volume 106, Number 2, January 13, 1912
Volume 106, Number 20, May 18, 1912
Volume 106, Number 21, May 25, 1912
Volume 106, Number 22, June 1, 1912
Volume 106, Number 23, June 8, 1912
Volume 106, Number 24, June 15, 1912
Volume 106, Number 25, June 22, 1912
Volume 106, Number 26, June 29, 1912
Volume 106, Number 3, January 20, 1912
Volume 106, Number 4, January 27, 1912
Volume 106, Number 5, February 3, 1912
Volume 106, Number 6, February 10, 1912
Volume 106, Number 7, February 17, 1912
Volume 106, Number 8, February 24, 1912
Volume 106, Number 9, March 2, 1912
Volume 107, Number 1, July 6, 1912
Volume 107, Number 10, September 7, 1912
Volume 107, Number 13, September 28, 1912
Volume 107, Number 14, October 5, 1912
Volume 107, Number 15, October 12, 1912
Volume 107, Number 16, October 19, 1912
Volume 107, Number 17, October 26, 1912
Volume 107, Number 18, November 2, 1912
Volume 107, Number 19, November 9, 1912
Volume 107, Number 2, July 13, 1912
Volume 107, Number 20, November 16, 1912
Volume 107, Number 21, November 23, 1912
Volume 107, Number 22, November 30, 1912
Volume 107, Number 23, December 7, 1912
Volume 107, Number 24, December 14, 1912
Volume 107, Number 25, December 21, 1912
Volume 107, Number 26, December 28, 1912
Volume 107, Number 3, July 20, 1912
Volume 107, Number 4, July 27, 1912
Volume 107, Number 5, August 3, 1912
Volume 107, Number 6, August 10, 1912
Volume 107, Number 7, August 17, 1912
Volume 107, Number 8, August 24, 1912
Volume 107, Number 9, August 31, 1912
Volume 108, Number 1, January 4, 1913
Volume 108, Number 10, March 8, 1913
Volume 108, Number 11, March 15, 1913
Volume 108, Number 12, March 22, 1913
Volume 108, Number 13, March 29, 1913
Volume 108, Number 14, April 5, 1913
Volume 108, Number 15, April 12, 1913
Volume 108, Number 16, April 19, 1913
Volume 108, Number 17, April 26, 1913
Volume 108, Number 18, May 3, 1913
Volume 108, Number 19, May 10, 1913
Volume 108, Number 2, January 11, 1913
Volume 108, Number 20, May 17, 1913
Volume 108, Number 21, May 24, 1913
Volume 108, Number 22, May 31, 1913
Volume 108, Number 23, June 7, 1913
Volume 108, Number 24, June 14, 1913
Volume 108, Number 25, June 21, 1913
Volume 108, Number 26, June 28, 1913
Volume 108, Number 3, January 18, 1913
Volume 108, Number 4, January 25, 1913
Volume 108, Number 5, February 1, 1913
Volume 108, Number 6, February 8, 1913
Volume 108, Number 7, February 15, 1913
Volume 108, Number 8, February 22, 1913
Volume 108, Number 9, March 1, 1913
Volume 109, Number 1, July 5, 1913
Volume 109, Number 10, September 6, 1913
Volume 109, Number 11, September 13, 1913
Volume 109, Number 12, September 20, 1913
Volume 109, Number 13, September 27, 1913
Volume 109, Number 14, October 4, 1913
Volume 109, Number 15, October 11, 1913
Volume 109, Number 16, October 18, 1913
Volume 109, Number 17, October 25, 1913
Volume 109, Number 18, November 1, 1913
Volume 109, Number 19, November 8, 1913
Volume 109, Number 2, July 12, 1913
Volume 109, Number 20, November 15, 1913
Volume 109, Number 21, November 22, 1913
Volume 109, Number 22, November 29, 1913
Volume 109, Number 23, December 6, 1913
Volume 109, Number 24, December 13, 1913
Volume 109, Number 25, December 20, 1913
Volume 109, Number 26, December 27, 1913
Volume 109, Number 3, July 19, 1913
Volume 109, Number 4, July 26, 1913
Volume 109, Number 5, August 2, 1913
Volume 109, Number 6, August 9, 1913
Volume 109, Number 7, August 16, 1913
Volume 109, Number 8, August 23, 1913
Volume 109, Number 9, August 30, 1913
Volume 110, Number 1, January 3, 1914
Volume 110, Number 10, March 7, 1914
Volume 110, Number 11, March 14, 1914
Volume 110, Number 12, March 21, 1914
Volume 110, Number 13, March 28, 1914
Volume 110, Number 14, April 4, 1914
Volume 110, Number 15, April 11, 1914
Volume 110, Number 16, April 18, 1914
Volume 110, Number 17, April 25, 1914
Volume 110, Number 18, May 2, 1914
Volume 110, Number 19, May 9, 1914
Volume 110, Number 2, January 10, 1914
Volume 110, Number 20, May 16, 1914
Volume 110, Number 21, May 23, 1914
Volume 110, Number 22, May 30, 1914
Volume 110, Number 23, June 6, 1914
Volume 110, Number 24, June 13, 1914
Volume 110, Number 25, June 20, 1914
Volume 110, Number 26, June 27, 1914
Volume 110, Number 3, January 17, 1914
Volume 110, Number 4, January 24, 1914
Volume 110, Number 5, January 31, 1914
Volume 110, Number 6, February 7, 1914
Volume 110, Number 7, February 14, 1914
Volume 110, Number 8, February 21, 1914
Volume 110, Number 9, February 28, 1914
Volume 111, Number 1, July 4, 1914
Volume 111, Number 10, September 5, 1914
Volume 111, Number 11, September 12, 1914
Volume 111, Number 12, September 19, 1914
Volume 111, Number 13, September 26, 1914
Volume 111, Number 14, October 3, 1914
Volume 111, Number 15, October 10, 1914
Volume 111, Number 16, October 17, 1914
Volume 111, Number 17, October 24, 1914
Volume 111, Number 18, October 31, 1914
Volume 111, Number 19, November 7, 1914
Volume 111, Number 2, July 11, 1914
Volume 111, Number 20, November 14, 1914
Volume 111, Number 21, November 21, 1914
Volume 111, Number 22, November 28, 1914
Volume 111, Number 23, December 5, 1914
Volume 111, Number 24, December 12, 1914
Volume 111, Number 25, December 19, 1914
Volume 111, Number 26, December 26, 1914
Volume 111, Number 3, July 18, 1914
Volume 111, Number 4, July 25, 1914
Volume 111, Number 5, August 1, 1914
Volume 111, Number 6, August 8, 1914
Volume 111, Number 7, August 15, 1914
Volume 111, Number 8, August 22, 1914
Volume 111, Number 9, August 29, 1914
Volume 112, Number 1, January 2, 1915
Volume 112, Number 10, March 6, 1915
Volume 112, Number 11, March 13, 1915
Volume 112, Number 12, March 20, 1915
Volume 112, Number 13, March 27, 1915
Volume 112, Number 14, April 3, 1915
Volume 112, Number 15, April 10, 1915
Volume 112, Number 16, April 17, 1915
Volume 112, Number 17, April 24, 1915
Volume 112, Number 18, May 1, 1915
Volume 112, Number 19, May 8, 1915
Volume 112, Number 2, January 9, 1915
Volume 112, Number 20, May 15, 1915
Volume 112, Number 21, May 22, 1915
Volume 112, Number 22, May 29, 1915
Volume 112, Number 23, June 5, 1915
Volume 112, Number 24, June 12, 1915
Volume 112, Number 25, June 19, 1915
Volume 112, Number 26, June 26, 1915
Volume 112, Number 3, January 16, 1915
Volume 112, Number 4, January 23, 1915
Volume 112, Number 5, January 30, 1915
Volume 112, Number 6, February 6, 1915
Volume 112, Number 7, February 13, 1915
Volume 112, Number 8, February 20, 1915
Volume 113, Number 1, July 3, 1915
Volume 113, Number 10, September 4, 1915
Volume 113, Number 11, September 11, 1915
Volume 113, Number 12, September 18, 1915
Volume 113, Number 13, September 25, 1915
Volume 113, Number 14, October 2, 1915
Volume 113, Number 15, October 9, 1915
Volume 113, Number 16, October 16, 1915
Volume 113, Number 17, October 23, 1915
Volume 113, Number 18, October 30, 1915
Volume 113, Number 19, November 6, 1915
Volume 113, Number 2, July 10, 1915
Volume 113, Number 20, November 13, 1915
Volume 113, Number 21, November 20, 1915
Volume 113, Number 22, November 27, 1915
Volume 113, Number 23, December 4, 1915
Volume 113, Number 24, December 11, 1915
Volume 113, Number 25, December 18, 1915
Volume 113, Number 26, December 25, 1915
Volume 113, Number 3, July 17, 1915
Volume 113, Number 4, July 24, 1915
Volume 113, Number 5, July 31, 1915
Volume 113, Number 6, August 7, 1915
Volume 113, Number 8, August 21, 1915
Volume 113, Number 9, August 28, 1915
Volume 114, Number 1, January 1, 1916
Volume 114, Number 10, March 4, 1916
Volume 114, Number 11, March 11, 1916
Volume 114, Number 12, March 18, 1916
Volume 114, Number 13, March 25, 1916
Volume 114, Number 14, April 1, 1916
Volume 114, Number 15, April 8, 1916
Volume 114, Number 16, April 15, 1916
Volume 114, Number 17, April 22, 1916
Volume 114, Number 18, April 29, 1916
Volume 114, Number 19, May 6, 1916
Volume 114, Number 2, January 8, 1916
Volume 114, Number 20, May 13, 1916
Volume 114, Number 21, May 20, 1916
Volume 114, Number 22, May 27, 1916
Volume 114, Number 23, June 3, 1916
Volume 114, Number 24, June 10, 1916
Volume 114, Number 25, June 17, 1916
Volume 114, Number 26, June 24, 1916
Volume 114, Number 4, January 22, 1916
Volume 114, Number 5, January 29, 1916
Volume 114, Number 6, February 5, 1916
Volume 114, Number 7, February 12, 1916
Volume 114, Number 8, February 19, 1916
Volume 114, Number 9, February 26, 1916
Volume 115, Number 1, July 1, 1916
Volume 115, Number 10, September 2, 1916
Volume 115, Number 11, September 9, 1916
Volume 115, Number 12, September 16, 1916
Volume 115, Number 13, September 23, 1916
Volume 115, Number 14, September 30, 1916
Volume 115, Number 15, October 7, 1916
Volume 115, Number 16, October 14, 1916
Volume 115, Number 17, October 21, 1916
Volume 115, Number 18, October 28, 1916
Volume 115, Number 19, November 4, 1916
Volume 115, Number 2, July 8, 1916
Volume 115, Number 20, November 11, 1916
Volume 115, Number 21, November 18, 1916
Volume 115, Number 22, November 25, 1916
Volume 115, Number 23, December 2, 1916
Volume 115, Number 24, December 9, 1916
Volume 115, Number 25, December 16, 1916
Volume 115, Number 26, December 23, 1916
Volume 115, Number 3, July 15, 1916
Volume 115, Number 4, July 22, 1916
Volume 115, Number 5, July 29, 1916
Volume 115, Number 6, August 5, 1916
Volume 115, Number 7, August 12, 1916
Volume 115, Number 8, August 19, 1916
Volume 115, Number 9, August 26, 1916
Volume 116, Number 1, January 6, 1917
Volume 116, Number 10, March 10, 1917
Volume 116, Number 11, March 17, 1917
Volume 116, Number 12, March 24, 1917
Volume 116, Number 13, March 31, 1917
Volume 116, Number 14, April 7, 1917
Volume 116, Number 15, April 14, 1917
Volume 116, Number 16, April 21, 1917
Volume 116, Number 17, April 28, 1917
Volume 116, Number 18, May 5, 1917
Volume 116, Number 19, May 12, 1917
Volume 116, Number 2, January, 1917
Volume 116, Number 20, May 19, 1917
Volume 116, Number 21, May 26, 1917
Volume 116, Number 22, June 2, 1917
Volume 116, Number 23, June 9, 1917
Volume 116, Number 24, June 16, 1917
Volume 116, Number 25, June 23, 1917
Volume 116, Number 26, June 30, 1917
Volume 116, Number 3, January 20, 1917
Volume 116, Number 4, January 27, 1917
Volume 116, Number 5, February 3, 1917
Volume 116, Number 6, February 10, 1917
Volume 116, Number 7, February 17, 1917
Volume 116, Number 8, February 24, 1917
Volume 116, Number 9, March 3, 1917
Volume 117, Number 1, July 7, 1917
Volume 117, Number 10, September 8, 1917
Volume 117, Number 11, September 15, 1917
Volume 117, Number 12, September 22, 1917
Volume 117, Number 13, September 29, 1917
Volume 117, Number 14, October 6, 1917
Volume 117, Number 15, October 13, 1917
Volume 117, Number 16, October 20, 1917
Volume 117, Number 17, October 27, 1917
Volume 117, Number 18, November 3, 1917
Volume 117, Number 19, November 10, 1917
Volume 117, Number 2, July 14, 1917
Volume 117, Number 20, November 17, 1917
Volume 117, Number 21, November 24, 1917
Volume 117, Number 22, December 1, 1917
Volume 117, Number 23, December 8, 1917
Volume 117, Number 24, December 15, 1917
Volume 117, Number 25, December 22, 1917
Volume 117, Number 26, December 29, 1917
Volume 117, Number 3, July 21, 1917
Volume 117, Number 4, July 28, 1917
Volume 117, Number 5, August 4, 1917
Volume 117, Number 6, August 11, 1917
Volume 117, Number 7, August 18, 1917
Volume 117, Number 8, August 25, 1917
Volume 117, Number 9, September 1, 1917
Volume 118, Number 1, January 5, 1918
Volume 118, Number 10, March 9, 1918
Volume 118, Number 11, March 16, 1918
Volume 118, Number 12, March 23, 1918
Volume 118, Number 13, March 30, 1918
Volume 118, Number 14, April 6, 1918
Volume 118, Number 15, April 13, 1918
Volume 118, Number 16, April 20, 1918
Volume 118, Number 17, April 27, 1918
Volume 118, Number 18, May 4, 1918
Volume 118, Number 19, May 11, 1918
Volume 118, Number 2, January 12, 1918
Volume 118, Number 20, May 18, 1918
Volume 118, Number 21, May 25, 1918
Volume 118, Number 22, June 1, 1918
Volume 118, Number 23, June 8, 1918
Volume 118, Number 24, June 15, 1918
Volume 118, Number 25, June 22, 1918
Volume 118, Number 26, June 29, 1918
Volume 118, Number 3, January 19, 1918
Volume 118, Number 4, January 26, 1918
Volume 118, Number 5, February 2, 1918
Volume 118, Number 6, February 9, 1918
Volume 118, Number 7, February 16, 1918
Volume 118, Number 8, February 23, 1918
Volume 118, Number 9, March 2, 1918
Volume 119, Number 1, July 6, 1918
Volume 119, Number 10, September 7, 1918
Volume 119, Number 11, September 18, 1918
Volume 119, Number 12, September 21, 1918
Volume 119, Number 13, September 28, 1918
Volume 119, Number 14, October 5, 1918
Volume 119, Number 15, October 12, 1918
Volume 119, Number 16, October 19, 1918
Volume 119, Number 17, October 26, 1918
Volume 119, Number 18, November 2, 1918
Volume 119, Number 19, November 9, 1918
Volume 119, Number 2, July 13, 1918
Volume 119, Number 20, November 16, 1918
Volume 119, Number 21, November 23, 1918
Volume 119, Number 22, November 30, 1918
Volume 119, Number 23, December 7, 1918
Volume 119, Number 24, December 14, 1918
Volume 119, Number 25, December 21, 1918
Volume 119, Number 26, December 28, 1918
Volume 119, Number 3, July 20, 1918
Volume 119, Number 4, July 27, 1918
Volume 119, Number 5, August 3, 1918
Volume 119, Number 6, August 10, 1918
Volume 119, Number 7, August 17, 1918
Volume 119, Number 8, August 24, 1918
Volume 119, Number 9, August 31, 1918
Volume 120, Number 1, January 4, 1919
Volume 120, Number 10, March 8, 1919
Volume 120, Number 11, March 15, 1919
Volume 120, Number 12, March 22, 1919
Volume 120, Number 13, March 29, 1919
Volume 120, Number 14, April 5, 1919
Volume 120, Number 15, April 12, 1919
Volume 120, Number 16, April 19, 1919
Volume 120, Number 17, April 26, 1919
Volume 120, Number 18, May 3, 1919
Volume 120, Number 19, May 10, 1919
Volume 120, Number 2, January 11, 1919
Volume 120, Number 20, May 17, 1919
Volume 120, Number 21, May 24, 1919
Volume 120, Number 22, May 31, 1919
Volume 120, Number 23, June 7, 1919
Volume 120, Number 24, June 14, 1919
Volume 120, Number 25, June 21, 1919
Volume 120, Number 26, June 28, 1919
Volume 120, Number 3, January 18, 1919
Volume 120, Number 4, January 25, 1919
Volume 120, Number 5, February 1, 1919
Volume 120, Number 6, February 8, 1919
Volume 120, Number 7, February 15, 1919
Volume 120, Number 8, February 22, 1919
Volume 120, Number 9, March 1, 1919
Volume 121, Number 1, July 5, 1919
Volume 121, Number 10, September 6, 1919
Volume 121, Number 11, September 13, 1919
Volume 121, Number 12, September 20, 1919
Volume 121, Number 13, September 27, 1919
Volume 121, Number 14, October 4, 1919
Volume 125, Number 15, October 11, 1919
Volume 121, Number 16, October 18, 1919
Volume 121, Number 17, October 25, 1919
Volume 121, Number 18, November 1, 1919
Volume 121, Number 19, November 8, 1919
Volume 121, Number 2, July 12, 1919
Volume 121, Number 20, November 15, 1919
Volume 121, Number 21, November 22, 1919
Volume 121, Number 22, November 29, 1919
Volume 121, Number 23, December 6, 1919
Volume 121, Number 24, December 13, 1919
Volume 121, Number 25, December 20, 1919
Volume 121, Number 26, December 27, 1919
Volume 121, Number 3, July 19, 1919
Volume 121, Number 4, July 26, 1919
Volume 121, Number 5, August 2, 1919
Volume 121, Number 6, August 9, 1919
Volume 121, Number 7, August 16, 1919
Volume 121, Number 8, August 23, 1919
Volume 121, Number 9, August 30, 1919


Scientific American
Volume 102, Number 1, January 1, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 9--9
           Henry Norris Russell   The Heavens in January . . . . . . . . . 12--12
                      Anonymous   Inventions: Recently Patented Inventions 15--15
                      Anonymous   Notes and Queries  . . . . . . . . . . . 15--15
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 15--15
                      Anonymous   Index of Inventions  . . . . . . . . . . 15--19
                      Anonymous   Retrospect of the Year 1909  . . . . . . 4--5
                  John B. Huber   Oxygen and Human Energy  . . . . . . . . 6--6
              Alfred Gradenwitz   Electrical Heat Penetration  . . . . . . 6--7
                  Jacques Boyer   An Automatic Apparatus for Projecting
                                  Pictures . . . . . . . . . . . . . . . . 7--7
                      Anonymous   The Current Supplement, A Correction . . 9--9
            Harold J. Shepstone   The Great St. Bernard Hospice  . . . . . 10--11
                 Fernand Honore   The Rignoux--Fournier System of
                                  Television . . . . . . . . . . . . . . . 13--13
                Marcus Benjamin   David Starr Jordan . . . . . . . . . . . 13--13
                      Anonymous   Patent Department  . . . . . . . . . . . 14--14

Scientific American
Volume 102, Number 10, March 5, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 199--199
           Henry Norris Russell   The Heavens in March . . . . . . . . . . 202--202
                      Anonymous   Inventions: Recently Patented Inventions 206--206
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 207--207
                      Anonymous   Index of Inventions  . . . . . . . . . . 207--211
                      Anonymous   Notes and Queries  . . . . . . . . . . . 208--208
                      Anonymous   A Tribute to American Shipbuilding,
                                  Could the Earth Collide with a Comet?,
                                  Patent Complexities in Great Britain . . 194--194
                      Anonymous   Engineering, Electricity, Science  . . . 195--195
                      Anonymous   Two Remarkable Shows . . . . . . . . . . 196--196
                      Anonymous   Rapid Progress of the New York State
                                  Barge Canal  . . . . . . . . . . . . . . 197--198
               Day Allen Willey   The Anthracite Coal Beds of Alaska . . . 198--199
                  Newton Forest   Ostrich Farming as an Industry . . . . . 200--201
                      Anonymous   The Bullet's Flight  . . . . . . . . . . 203--203
             Chauncey W. Nieman   Tool-Holding Device for Wood Turning . . 204--204
              Frederick E. Ward   Electric Incubators and Brooders . . . . 204--205
                  D. Pennington   Convenient Door Holder . . . . . . . . . 205--205
              George J. Murdock   Boring Holes in Glass  . . . . . . . . . 205--205
                   I. G. Bayley   A Wagon Jack . . . . . . . . . . . . . . 205--205

Scientific American
Volume 102, Number 11, March 12, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 219--219
                      Anonymous   Inventions: Recently Patented Inventions 225--225
                      Anonymous   Notes and Queries  . . . . . . . . . . . 225--225
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 226--226
                      Anonymous   Index of Inventions  . . . . . . . . . . 226--226
                      Anonymous   The ``Whip-Creation'' Battleship,
                                  High-Speed Telegraphy, New York and
                                  Paris Subway Systems Compared  . . . . . 214--214
                      Anonymous   Engineering, Aeronautics, Science  . . . 215--215
                George H. Lodge   Driving Piles without a Pile Driver  . . 216--216
                      Anonymous   An Artistic Reinforced Concrete Bridge   216--216
              L. Gordon Glazier   Instrument for Detecting Violations of
                                  the Speed Laws . . . . . . . . . . . . . 217--217
                      Anonymous   Sacrificial Compliments Paid to New
                                  Buildings in Antiquity . . . . . . . . . 217--217
              Frederic R. Honey   Jupiter and his Satellites . . . . . . . 218--218
                      Anonymous   The Wisps of Saturn  . . . . . . . . . . 219--219
            Harold J. Shepstone   The Rock-Hewn City of Petra  . . . . . . 220--221
              Alfred Gradenwitz   An Electrical Fever Recorder . . . . . . 222--222
         George Ethelbert Walsh   Treasure Hunting . . . . . . . . . . . . 222--222
                      Anonymous   Patent Department  . . . . . . . . . . . 223--224

Scientific American
Volume 102, Number 12, March 19, 1910

                      Anonymous   Inventions: Recently Patented Inventions 245--245
                      Anonymous   Index of Inventions  . . . . . . . . . . 245--245
                      Anonymous   A Triumph of Modern Steam Engineering,
                                  An American Gibraltar, Paulhan's Flight
                                  Near New York  . . . . . . . . . . . . . 234--234
                      Anonymous   Engineering, Electricity, Science  . . . 235--235
                      Anonymous   New Aeroplanes At Home And Abroad  . . . 236--236
                      Anonymous   Building the Olive Bridge Dam for the
                                  Catskill Water Supply  . . . . . . . . . 237--238
                      Anonymous   An Important German Patent Decision, The
                                  Life of Radium, The Brazilian Battleship
                                  Minas Geraes, and more . . . . . . . . . 239--241
                  B. B. Bowdish   Birds as Mechanisms  . . . . . . . . . . 242--242
                   A. J. Jarman   Experiments in Crystallization . . . . . 243--243
                     W. K. Carr   Simple Method of Producing the Zeeman
                                  Effect . . . . . . . . . . . . . . . . . 243--244
              Ralph P. Clarkson   Some Simple Tests for Oils . . . . . . . 244--244
                      Anonymous   The Ionization of Air  . . . . . . . . . 244--244

Scientific American
Volume 102, Number 13, March 26, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 259--259
                      Anonymous   Inventions: Recently Patented Inventions 265--265
                      Anonymous   Index of Inventions  . . . . . . . . . . 265--265
                      Anonymous   The Preservation of the City Hall Park,
                                  The Meyer Naval Reorganization to have a
                                  Fair Trial, The Scottish Ship Canal  . . 254--254
                      Anonymous   Aeronautics, Electricity, Science  . . . 255--255
                      Anonymous   An Account of a Trip in the Largest
                                  Balloon Ever Constructed . . . . . . . . 256--256
       Charles Monroe Mansfield   Vertical Photography . . . . . . . . . . 256--256
                 H. A. Humphrey   An Internal Combustion Water Pump  . . . 257--257
                      Anonymous   Rapid Transit by Belt Conveyor . . . . . 257--257
                   H. W. Griggs   Condensed Facts about Halley's Comet . . 258--258
                      Anonymous   A New Telephoto Camera . . . . . . . . . 260--260
                  John B. Huber   Why are we Right-Handed? . . . . . . . . 260--261
                 J. F. Springer   Thermal Treatment of Steel Ingots  . . . 262--262
                  Percy Collins   Eggs of Curious Forms  . . . . . . . . . 263--263
                      Anonymous   Curiosities of Science and Invention . . 264--264

Scientific American
Volume 102, Number 14, April 2, 1910

           Henry Norris Russell   The Heavens in April . . . . . . . . . . 282--282
                      Anonymous   Inventions: Recently Patented Inventions 285--286
                      Anonymous   Notes and Queries  . . . . . . . . . . . 286--286
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 286--287
                      Anonymous   Index of Inventions  . . . . . . . . . . 287--288
                      Anonymous   The Panama Canal as an Investment,
                                  Relative Repairs on Navy-Built and
                                  Contract-Built Ships, and more . . . . . 274--274
                      Anonymous   Engineering, Electricity, Science  . . . 275--275
                      Anonymous   A New Type of Torpedo Boat . . . . . . . 276--276
               Frank C. Perkins   Trackless Electric Trolley-Drawn Sleigh
                                  in Norway  . . . . . . . . . . . . . . . 277--277
                      Anonymous   The Earliest Story of the Deluge . . . . 277--281
                      F. Honore   Novel Changeable Photographs . . . . . . 283--283
                      Anonymous   Mother-of-Pearl Imitations . . . . . . . 283--283
               Albert F. Bishop   Notes on Overhauling a Boat  . . . . . . 284--284
                  E. Rutherford   Properties of Polonium . . . . . . . . . 288--289
                      Anonymous   The Revolving Safe, The Action of Radium
                                  Emanation Upon the Element of the Carbon
                                  Group  . . . . . . . . . . . . . . . . . 289--291

Scientific American
Volume 102, Number 15, April 9, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 299--299
                      Anonymous   Lieut. Shackleton, A Plea for
                                  Co-operation, A Reform in Meteorological
                                  Units  . . . . . . . . . . . . . . . . . 294--294
                      Anonymous   Engineering, Electrical, Science . . . . 295--295
                      Anonymous   Timing an Automobile Race  . . . . . . . 296--296
                      Anonymous   A Fine Long-Span Masonry Arch Bridge . . 297--298
                    H. E. Cloke   Our Seacoast Defenses  . . . . . . . . . 300--301
                  Daniel Arthur   Our Civil Day  . . . . . . . . . . . . . 302--302
                      Anonymous   Patent Department  . . . . . . . . . . . 303--304
                      Anonymous   The Energy of a Coiled Spring  . . . . . 308--308

Scientific American
Volume 102, Number 16, April 16, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 319--319
                      Anonymous   Inventions: Recently Patented Inventions 326--327
                      Anonymous   Notes and Queries  . . . . . . . . . . . 327--327
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 327--327
                      Anonymous   Index of Inventions  . . . . . . . . . . 328--329
                      Anonymous   The World's Fair of the Future,
                                  Gyroscopic Effect of Revolving Aeroplane
                                  Motors, and more . . . . . . . . . . . . 314--314
                      Anonymous   Engineering, Electricity, Science  . . . 315--315
                      Anonymous   The ``Viking'' --- Self-Dumping Deck
                                  Scow . . . . . . . . . . . . . . . . . . 316--317
           Henry Norris Russell   Halley's Comet at its Brightest  . . . . 317--318
                      Anonymous   The Mercury Vapor Lamp and its Effect on
                                  the Eye, The Current Supplement, and
                                  more . . . . . . . . . . . . . . . . . . 318--318
                      Anonymous   Effect of Rainfall on the Cotton
                                  Industry . . . . . . . . . . . . . . . . 319--320
               Day Allen Willey   Government Irrigation in the Yakima
                                  Watershed --- The Tieton Canyon Canal    320--321
            Hereward Carrington   How Gamblers Cheat . . . . . . . . . . . 322--322
                      Anonymous   Macrographic Examination of Metals, Big
                                  Fir Trees of the Northwest . . . . . . . 322--323
              Louis A. Flemming   How to Repair and Clean Typewriters  . . 323--323
                      Anonymous   The Transformation of Sea Water into
                                  Fresh Water  . . . . . . . . . . . . . . 323--323
                  H. D. Chapman   Handy Man's Workshop . . . . . . . . . . 324--324
             Chauncey W. Nieman   Grooved Pulleys for Experimental Work    324--324
                 John Bergstrom   How to cut Threads Without a
                                  Screw-Cutting Lathe or Thread-Chasing
                                  Tool . . . . . . . . . . . . . . . . . . 324--324
                 August Mencken   Simple Methods of Finding the Center of
                                  a Circle . . . . . . . . . . . . . . . . 324--324
               Alfred F. Bishop   How to Sharpen a Pipe Die  . . . . . . . 324--324
             George H. M'entire   A ``Spanish Windlass'' . . . . . . . . . 324--325
                   A. J. Jarman   The Weighting of Tool Handles  . . . . . 325--325
                 F. G. Williams   An Illuminated Gas Heater  . . . . . . . 325--325
                  Homer Clouket   Files and their Uses . . . . . . . . . . 325--325
                     C. C. Rice   How Railway Traffic is Managed . . . . . 328--329
                      Anonymous   Estimation of the Working Capacity of a
                                  Man Before and After an Accident . . . . 329--329

Scientific American
Volume 102, Number 17, April 23, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 338--338
                      Anonymous   Inventions: Recently Patented Inventions 347--347
                      Anonymous   Index of Inventions  . . . . . . . . . . 347--351
                      Anonymous   True Way to Prevent Railway Accidents,
                                  An Epoch-Making Experiment, and more . . 334--334
                      Anonymous   Engineering, Electricity, Science  . . . 335--335
                      Anonymous   The Erosion of Bronze Propellers . . . . 336--336
              Alfred Gradenwitz   Hot-Air Shower Baths for Veterinary
                                  Purposes . . . . . . . . . . . . . . . . 337--337
            P. Harvey Middleton   The Microscope as Food Detective . . . . 337--338
              Frederic R. Honey   The Solar and Lunar Eclipses in May,
                                  1910 . . . . . . . . . . . . . . . . . . 339--339
                    H. D. Jones   Model Motor-Boat Racing  . . . . . . . . 340--340
                 Alton D. Adams   Cost of 20,000 Candle-Power Street
                                  Lighting Plant . . . . . . . . . . . . . 340--341
                      Anonymous   The Coalinga Oil District, California,
                                  The Current Supplement . . . . . . . . . 341--341
                      Anonymous   Rougier's Spectacular Monaco Flights . . 342--342
                  Jacques Boyer   An Automatic Projecting Lantern with
                                  Electrical Control . . . . . . . . . . . 343--343
                  Harold Bastin   Insect Pests in House and Store  . . . . 344--344
                      Anonymous   Fire-Proof Construction, Our Annual Fire
                                  Loss, and more . . . . . . . . . . . . . 345--346
                      Anonymous   Buggy-top Canoples for Launches  . . . . 349--349

Scientific American
Volume 102, Number 18, April 30, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 359--359
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 365--365
                      Anonymous   Inventions: Recently Patented Inventions 365--365
                      Anonymous   Index of Inventions  . . . . . . . . . . 365--367
                      Anonymous   Why not a Good Roads Laboratory,
                                  Rational Street Lighting, A Battleship
                                  Fleet in Each Ocean  . . . . . . . . . . 354--354
                      Anonymous   Engineering, Electricity, Science  . . . 355--355
                   H. A. Crafts   A Railway School for Farmers . . . . . . 356--357
                      Anonymous   A Reaper Boat  . . . . . . . . . . . . . 357--357
                Herbert T. Wade   The Elevator Installation of the
                                  Metropolitan Life Tower, An Ingenious
                                  Way of Examining the Contents of the
                                  Duodenum . . . . . . . . . . . . . . . . 358--358
                 James K. Lynch   Halley's Comet. --- a Model of its Orbit 359--359
                      Anonymous   The Motor-Boat Races at Monaco . . . . . 360--360
                  Jacques Boyer   The Manufacture of Celluloid . . . . . . 361--362
                 S. A. Mitchell   Telescope Lenses and how to Test Them    363--364
                   A. J. Jarman   Making Milk Artificially . . . . . . . . 364--364
                Gustave Michaud   Some Extraordinary Densities . . . . . . 364--364
                  A. E. Parkins   A Small Electric Furnace . . . . . . . . 364--364

Scientific American
Volume 102, Number 19, May 7, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 375--375
           Henry Norris Russell   The Heavens in May . . . . . . . . . . . 378--378
                      Anonymous   Inventions: Recently Patented Inventions 382--382
                      Anonymous   Index of Inventions  . . . . . . . . . . 382--382
                      Anonymous   The Aeroplane and the Dirigible, The
                                  Decline of the University in Scientific
                                  Research . . . . . . . . . . . . . . . . 370--370
                      Anonymous   Aeronautics, Electricity, Science  . . . 371--371
                      Anonymous   The Nice Aviation Meet . . . . . . . . . 372--372
                  A. L. Kroeber   Peculiar Spiral Arch of the Eskimo Snow
                                  House  . . . . . . . . . . . . . . . . . 373--373
                Walter Langford   A Gasoline Motor-Driven Earth-Boring
                                  Machine, Launch of the ``Florida'', and
                                  more . . . . . . . . . . . . . . . . . . 373--374
               Frank C. Perkins   Reinforced Concrete Water Works
                                  Construction . . . . . . . . . . . . . . 376--377
                  Percy Collins   Nature as an Inventor  . . . . . . . . . 379--379
                      Anonymous   Curiosities of Science and Invention . . 380--380

Scientific American
Volume 102, Number 2, January 8, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 27--27
                      Anonymous   Inventions: Recently Patented Inventions 33--33
                      Anonymous   Notes and Queries  . . . . . . . . . . . 34--34
                      Anonymous   A New Era of the Steam Engine, Rapid
                                  Transit by Belt Conveyer, Results of
                                  British Steam Railway Electrification,
                                  and more . . . . . . . . . . . . . . . . 22--22
                      Anonymous   Engineering, Electricity, Science  . . . 23--23
                  Jacques Boyer   A Universal Vise . . . . . . . . . . . . 24--24
                      Anonymous   Mechanical Bowling Machine . . . . . . . 24--24
              Alfred Gradenwitz   An Automatic Railway Safety Stop . . . . 25--25
                 J. F. Springer   Friction at Railway Curves . . . . . . . 26--26
                      Anonymous   The Speed of an Aeroplane Propeller, The
                                  Public Bath System of New York City, The
                                  Current Supplement . . . . . . . . . . . 27--27
                   John C. Dean   Relative Positions of Halley's Comet,
                                  the Earth, and the Sun . . . . . . . . . 27--27
                  Jacques Boyer   Glass Espalier Walls . . . . . . . . . . 28--28
                      Anonymous   Graphite Mining in Ceylon  . . . . . . . 29--29
                  C. E. McCluer   Rufus Porter and his ``Flying Ship'' . . 30--30
                   A. J. Jarman   Imitation Marble . . . . . . . . . . . . 31--31
               Alfred P. Morgan   Some Curious Chemical Growths  . . . . . 31--32
          E. H. Williamson, Jr.   Wireless Experiments with a Static
                                  Machine  . . . . . . . . . . . . . . . . 32--32
                Gustave Michaud   A Color and Relief Illusion  . . . . . . 32--32
                      Anonymous   Woven Aluminium  . . . . . . . . . . . . 39--39

Scientific American
Volume 102, Number 20, May 14, 1910

                      Anonymous   Inventions: Recently Patented Inventions 404--404
                      Anonymous   Notes and Queries  . . . . . . . . . . . 404--405
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 405--406
                      Anonymous   Index of Inventions  . . . . . . . . . . 406--406
                      Anonymous   New Quebec Bridge Design, Fuel Economy
                                  and our Natural Resources, Does Radium
                                  Exist in the Pure State  . . . . . . . . 390--390
                      Anonymous   Engineering, Electricity, Science  . . . 391--391
                      Anonymous   The Porhydrometer --- An Apparatus for
                                  Weighing Ship Cargoes  . . . . . . . . . 392--392
                  Jacques Boyer   The New Eiffel Photographic Heliograph,
                                  Cardin Process of Photo-Sculpture  . . . 393--394
           Henet Norris Russell   Halley's Comet in the Evening Sky  . . . 394--394
              René Homer   Wireless Telegraph Apparatus for
                                  Contestants of the Glidden Tour  . . . . 395--395
                Walter Langford   Two Novel Motor Sleds  . . . . . . . . . 396--396
                      Anonymous   The Flight from London to Manchester . . 397--401
              Frederick K. Lord   How to Build a Houseboat for . . . . . . 402--403
                      Anonymous   An Industrial Laboratory for the
                                  Improvement of the Incandescent Lamp,
                                  Scientific Cider Making, and more  . . . 407--407

Scientific American
Volume 102, Number 21, May 21, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 419--419
                      Anonymous   Inventions: Recently Patented Inventions 425--425
                      Anonymous   Notes and Queries  . . . . . . . . . . . 425--426
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 426--426
                      Anonymous   Index of Inventions  . . . . . . . . . . 426--428
                      Anonymous   New Skyscrapers for Old, Our Navy as a
                                  National Insurance, The Utilization of
                                  Solar Heat . . . . . . . . . . . . . . . 414--414
                      Anonymous   Engineering, Electricity, Science  . . . 415--415
                      Anonymous   Comet Notes, The Accident to the
                                  Zeppelin . . . . . . . . . . . . . . . . 416--416
                      Anonymous   The Thorne--Baker Tele-Photographic
                                  Apparatus  . . . . . . . . . . . . . . . 417--419
          Charles Carrol Wright   A Phenomenal Oil Gusher  . . . . . . . . 419--419
               Day Allen Willey   The Manufacture of Twine . . . . . . . . 420--420
                   H. A. Crafts   Educating the Farmers by Rail  . . . . . 420--421
                      Anonymous   Fire Control in the National Forests . . 421--421
                    W. P. Green   Damming the Mississippi  . . . . . . . . 422--422
                      Anonymous   The Oceanographic Museum of Monaco . . . 422--424
                      Anonymous   Patent Department  . . . . . . . . . . . 423--424
                      Anonymous   Practical Sterilization by Means of
                                  Ultra-Violet Rays, A New Process for the
                                  Prevention of Coal-Dust Explosions . . . 427--429
                      Anonymous   Colors of Foods  . . . . . . . . . . . . 429--429

Scientific American
Volume 102, Number 22, May 28, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 439--439
           Henry Norris Russell   The Heavens in June  . . . . . . . . . . 442--442
                      Anonymous   Inventions: Recently Patented Inventions 447--447
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 447--447
                      Anonymous   Index of Inventions  . . . . . . . . . . 447--447
                      Anonymous   Our National Good Roads Laboratory,
                                  Arbitration Versus Self-Redress, Sir
                                  William Huggins and His Work . . . . . . 434--434
                      Anonymous   Aeronautics, Electricity, Science  . . . 435--435
                      Anonymous   The Latest Giant Freight Engine  . . . . 436--436
                  Jacques Boyer   Eiffel's Recent Experiments on the
                                  Resistance of the Air  . . . . . . . . . 437--438
                  D. H. Stevens   How Chicago is Solving its Rapid Transit
                                  Problem  . . . . . . . . . . . . . . . . 439--439
                      Anonymous   The Current Supplement, The Difference
                                  Between a Sanitarium and a Sanatorium    439--439
                Gustave Michaud   The Cartago Earthquake . . . . . . . . . 440--441
                  Percy Collins   How to Act in Case of Fire . . . . . . . 441--441
             Percival A. Hislam   A 13-Gun Ship; The Latest Dreadnought
                                  Development  . . . . . . . . . . . . . . 443--443
                     H. C. Carr   How the Lakeview Gusher was Capped . . . 443--443
                      Anonymous   A National Good Roads Laboratory . . . . 443--443
                      Anonymous   New Two-Cycle Motors . . . . . . . . . . 444--444
                   A. J. Jarman   A Rough and Ready Galvanic Battery . . . 445--445
                   F. W. Bremer   Safe Gasoline Tanks  . . . . . . . . . . 445--445
                      Anonymous   Plug Connector . . . . . . . . . . . . . 445--445
                H. H. F. Clarke   A Simple Apparatus for Emptying Carboys  445--445
                 A. S. Atkinson   Making your Own Perfumery  . . . . . . . 446--446
                     W. K. Carr   An Experiment in Sound . . . . . . . . . 446--446

Scientific American
Volume 102, Number 23, June 4, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 459--459
                      Anonymous   Inventions: Recently Patented Inventions 466--466
                      Anonymous   Notes and Queries  . . . . . . . . . . . 466--466
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 466--467
                      Anonymous   Index of Inventions  . . . . . . . . . . 467--469
                      Anonymous   What will the Raising of the ``Maine''
                                  Disclose?, Revival of the Rotary Engine,
                                  The Government and the Inventor  . . . . 454--454
                      Anonymous   Engineering, Electricity, Science  . . . 455--455
                      Anonymous   A Commercial Rotary Engine . . . . . . . 456--456
               Frank C. Perkins   The Costliest Ear of Corn in the World   457--457
                  Jacques Boyer   A Giant Ruhmkorff Coil . . . . . . . . . 457--457
                Herbert T. Wade   Fire Fighting Without Fire Engines . . . 458--458
                  F. V. Collins   Astronomical Photography . . . . . . . . 459--459
                      Anonymous   The Current Supplement . . . . . . . . . 459--459
                      Anonymous   How to Escape from a Sunken Submarine    460--460
              Alfred Gradenwitz   Artificial Radium Baths and Drinking
                                  Water  . . . . . . . . . . . . . . . . . 461--461
                      Anonymous   Alexander Graham Bell and the Telephone  462--462
                      Anonymous   A Motion Apparatus for Amateurs  . . . . 463--463
                      Anonymous   An Ingenious Torsional Wave Detector . . 464--464
                Walter Langford   The Height of the Antarctic Continent    464--464
                      Anonymous   Curiosities of Science and Invention . . 465--465

Scientific American
Volume 102, Number 24, June 11, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 479--479
                      Anonymous   Inventions: Recently Patented Inventions 486--486
                      Anonymous   Index of Inventions  . . . . . . . . . . 486--486
                      Anonymous   The New Era of Aeronautics in America,
                                  The Peril of the Submarine, and more . . 474--474
                      Anonymous   Engineering, Electricity, Science  . . . 475--475
              Alfred Gradenwitz   The Oceanographic Museum at Monaco . . . 476--476
                      Anonymous   The Nam-Ti Bridge  . . . . . . . . . . . 477--479
                      Anonymous   The Albany--New York Aeroplane Flight    480--481
                    W. G. Aston   An Aerial Torpedo  . . . . . . . . . . . 482--482
                  John B. Huber   Dr. Robert Koch, The Father of
                                  Preventive Medicine  . . . . . . . . . . 483--483
           Frederick M. Schwerd   The Collection and Preservation of Moths
                                  and Butterflies  . . . . . . . . . . . . 484--484
                  Jacques Boyer   Bertillon and the Burglar's ``Jimmy''    484--484
              John A. Bergstrom   Gas Water Heater for Kitchen Boilers . . 485--485
               E. B. Uterstaedt   Turning Concave and Convex Surfaces  . . 485--486
                   A. J. Jarman   A Safety Oil Can . . . . . . . . . . . . 486--486
                 George M. Page   Instantaneous Water Heater . . . . . . . 486--486
                   A. F. Bishop   Steam Boxes for Boat Building  . . . . . 486--486
                   P. J. Watson   To Prevent Obstruction of the Feed Pipe
                                  in Automobiles . . . . . . . . . . . . . 486--486

Scientific American
Volume 102, Number 25, June 18, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 499--499
                      Anonymous   Inventions: Recently Patented Inventions 505--505
                      Anonymous   Notes and Queries  . . . . . . . . . . . 506--506
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 506--506
                      Anonymous   Index of Inventions  . . . . . . . . . . 507--509
                      Anonymous   A Steel Arch Suggested for the Quebec
                                  Bridge, Six Thousand Miles in an
                                  Aeroplane  . . . . . . . . . . . . . . . 494--494
                      Anonymous   Engineering, Aeronautics, Science  . . . 495--495
                      Anonymous   A Telephonic Stethoscope . . . . . . . . 496--496
                      Anonymous   A New System of Color Photography  . . . 497--497
                      F. Honore   Wireless Time Signaling to Sea from the
                                  Eiffel Tower . . . . . . . . . . . . . . 497--499
                  Jacques Boyer   A Garden of Fungi  . . . . . . . . . . . 500--500
                  Joseph Barton   The Temperature of the Stars . . . . . . 501--501
                Carl Dienstbach   The Flights of Rolls, De Lesseps, and
                                  Curtiss Compared . . . . . . . . . . . . 502--502
                      Anonymous   Patent Department  . . . . . . . . . . . 503--504

Scientific American
Volume 102, Number 26, June 25, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 518--518
                      Anonymous   Inventions: Recently Patented Inventions 525--525
                      Anonymous   Notes and Queries  . . . . . . . . . . . 525--525
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 525--526
                      Anonymous   Index of Inventions  . . . . . . . . . . 526--527
                      Anonymous   The Open Door of Aviation, The
                                  \booktitleScientific American
                                  Aeronautical Trophy, the International
                                  Union for Co-operation in Solar Research 514--514
                      Anonymous   Engineering, Electricity, Science  . . . 515--515
               Frank C. Perkins   Modern Steel Lock Bar Pipe Construction  516--516
                 J. F. Springer   The Wearing Qualities of Manganese Steel 516--516
                      Anonymous   The Contagious Diseases of Metals  . . . 517--518
                  John B. Huber   Independence Day Casualties  . . . . . . 519--519
                      Anonymous   The Aviation Meet at Indianapolis,
                                  Wanted Information About Dishonest
                                  Patent Schemes . . . . . . . . . . . . . 519--519
                      Anonymous   The German Dreadnought ``Nassau''  . . . 520--520
                      Anonymous   An English Judicial Opinion of Complex
                                  Patents  . . . . . . . . . . . . . . . . 520--520
                      Anonymous   Hamilton's Round-Trip Aeroplane Flight
                                  from New York to Philadelphia  . . . . . 521--521
                      Anonymous   New Filtered Water Supply for the City
                                  of Pittsburgh  . . . . . . . . . . . . . 522--522
                Gustave Michaud   Wandering Chemicals  . . . . . . . . . . 523--523
                   James Bailey   Geissler Tubes from Electric Light Bulbs 523--523
                George F. Worts   Construction of a Simple Electrolytic
                                  Interrupter  . . . . . . . . . . . . . . 523--523
              Howard M. Nichols   Device for Testing Electric Wiring . . . 523--523
                      Anonymous   Polariscope Attachment for Microscopes   524--524
                   A. J. Jarman   An Electroplating Outfit . . . . . . . . 524--524
                 Walter C. Gold   Emery  . . . . . . . . . . . . . . . . . 531--531

Scientific American
Volume 102, Number 3, January 15, 1910

                      Anonymous   Inventions: Recently Patented Inventions 74--74
                      Anonymous   Notes and Queries  . . . . . . . . . . . 74--75
                      Anonymous   Books: New Book, Etc.  . . . . . . . . . 75--76
                      Anonymous   Index of Inventions  . . . . . . . . . . 76--79
                      Anonymous   The 1910 Automobile, Improved Quality
                                  Versus Price Reduction . . . . . . . . . 44--44
                      Anonymous   Engineering, Electrical, Science . . . . 45--45
              Logan Waller Page   The Motor Car and the Road . . . . . . . 46--47
                      Anonymous   Motor Balloon Guns . . . . . . . . . . . 48--48
                  Alfred Reeves   The Middle West and the Automobile
                                  Industry . . . . . . . . . . . . . . . . 48--48
             Harry Wilkin Perry   Anti Joy Ride Devices  . . . . . . . . . 49--49
                Walter Langford   What the Motor Vehicle is doing for the
                                  Farmer . . . . . . . . . . . . . . . . . 50--51
                Emil Gruenfeldt   The Modern Electric Automobile . . . . . 51--51
                  Joseph Rogers   The Modern Low-Priced Car  . . . . . . . 52--52
               Herbert L. Towle   How to Overhaul a Car  . . . . . . . . . 53--53
                Herbert T. Wade   Automobile Fire Engines  . . . . . . . . 54--55
                      Anonymous   Automobile Novelties . . . . . . . . . . 56--57
               Roger B. Whitman   Making your Own Repairs  . . . . . . . . 62--62
                      Anonymous   Automobile Notes . . . . . . . . . . . . 64--64

Scientific American
Volume 102, Number 4, January 22, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 87--87
                      Anonymous   Index of Inventions  . . . . . . . . . . 92--95
                      Anonymous   Inventions: Recently Patented Inventions 92--92
                      Anonymous   Adaptability of the Gyroscopic Car to
                                  Railroad Service, Important
                                  Investigations Regarding the Propulsion
                                  of Ships, and more . . . . . . . . . . . 82--82
                      Anonymous   Engineering, Electrical, Science . . . . 83--83
                      Anonymous   The Scherl Gyroscopic Monorail Car . . . 84--86
                      Anonymous   The New Naval Harbor at Dover  . . . . . 88--90
                      Anonymous   Curiosities of Science and Invention . . 91--91

Scientific American
Volume 102, Number 5, January 29, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 103--103
                      Anonymous   Patent Notes: Tool for Cutting Stay
                                  Bolts, Utilizing Centrifugal Force
                                  Practically, and more  . . . . . . . . . 107--108
                      Anonymous   Inventions: Recently Patented Inventions 109--110
                      Anonymous   Notes and Queries  . . . . . . . . . . . 110--111
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 111--112
                      Anonymous   Index of Inventions  . . . . . . . . . . 112--115
                      Anonymous   Wave Versus Ship, Industrial Fellowships
                                  in University Work, The Moon and
                                  Radio-Activity . . . . . . . . . . . . . 98--98
                      Anonymous   Engineering, Electricity, Science  . . . 99--99
                      Anonymous   A New Era of the American Locomotive . . 100--100
                      Anonymous   Putting Old Neptune to Work  . . . . . . 101--101
             Percival A. Hislam   Foreign Naval Progress in 1909 . . . . . 102--102
                Ruel W. Roberts   How an Amateur May Find Halley's Comet   102--102
                      Anonymous   The Lake Washington Canal, The Boy's
                                  Endorsement, and more  . . . . . . . . . 103--103
                 S. A. Mitchell   A Great Open-Air Telescope . . . . . . . 104--104
                      Anonymous   America's First Aviation Meet at Los
                                  Angeles  . . . . . . . . . . . . . . . . 105--106

Scientific American
Volume 102, Number 6, February 5, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 123--123
           Henry Norris Russell   The Heavens in February, 1910  . . . . . 126--126
                      Anonymous   Inventions: Recently Patented Inventions 129--129
                      Anonymous   Notes and Queries  . . . . . . . . . . . 129--131
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 131--132
                      Anonymous   Index of Inventions  . . . . . . . . . . 132--135
                      Anonymous   Lessons of the Paris Flood, The New York
                                  Deep Tunnel Water Supply, Our Latest and
                                  Final Reciprocating Engine Battleship    118--118
                      Anonymous   Engineering, Electricity, Science  . . . 119--119
                      Anonymous   A New Storage Battery Street Car . . . . 120--120
                  Jacques Boyer   Artificial Production of the Voice . . . 120--120
             Robert G. Skerrett   What Smokeless Powder has Made Possible
                                  --- I  . . . . . . . . . . . . . . . . . 121--122
                  John B. Huber   The Rockefeller Institute's Work on
                                  Infantile Paralysis  . . . . . . . . . . 122--122
               Frank C. Perkins   Clearing Snow from Railway Tracks in
                                  Canada . . . . . . . . . . . . . . . . . 124--124
            Charles A. Brassler   Bernard Palissy, the Famous French
                                  Potter, and his Works  . . . . . . . . . 125--125
                   A. J. Jarman   Method of Economizing Gas  . . . . . . . 127--127
                    B. A. Johns   Regulator for Indirect and
                                  Direct-Indirect Steam Heating  . . . . . 127--127
                    F. F. Allen   Thermostatic Alarm for House Heaters . . 127--127
                J. A. Bergstrom   Adapting a Grate for Small Coal  . . . . 127--128
                    W. B. Allen   How to Burn Coal Economically  . . . . . 128--128
                   J. A. Brophy   Home-Made Ash Sifter . . . . . . . . . . 128--128

Scientific American
Volume 102, Number 7, February 12, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 143--143
                      Anonymous   Inventions: Recently Patented Inventions 149--149
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 149--150
                      Anonymous   Canada and the Quebec Bridge, Causes of
                                  the Paris Flood, and more  . . . . . . . 138--138
                      Anonymous   Engineering, Electricity, Science  . . . 139--139
                      Anonymous   A Novel American Monoplane . . . . . . . 140--140
                      Anonymous   New Overhead Electrical Construction on
                                  the N.H. R.R . . . . . . . . . . . . . . 140--140
             Robert G. Skerrett   Smokeless Powder --- Method of
                                  Manufacture --- II . . . . . . . . . . . 141--141
                      Anonymous   A Way Out of the Marine Turbine Dilemma,
                                  The Current Supplement . . . . . . . . . 142--143
            Edgar Lucien Larkin   The Lowe Observatory on Echo Mountain,
                                  California, U.S.A. . . . . . . . . . . . 144--145
              Frederic R. Honey   Morning and Evening Stars for 1910 . . . 146--146
                      Anonymous   Curiosities of Science and Invention . . 147--147
                      Anonymous   The Design for the New Quebec Bridge . . 148--148

Scientific American
Volume 102, Number 8, February 19, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 163--163
                      Anonymous   Inventions: Recently Patented Inventions 169--169
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 169--170
                      Anonymous   Secretary Meyer's Plan for the
                                  Reorganization of the Navy, Electrolytic
                                  Removal of Grease  . . . . . . . . . . . 158--158
                      Anonymous   Engineering, Aeronautics, Science  . . . 159--159
             Percival A. Hislam   Did Great Britain have the First
                                  ``Dreadnought''? . . . . . . . . . . . . 160--160
                 S. A. Mitchell   Other Worlds in Space  . . . . . . . . . 160--160
                      Anonymous   Concrete Construction on the Panama
                                  Canal  . . . . . . . . . . . . . . . . . 161--162
                      Anonymous   The Great Flood of Paris . . . . . . . . 164--165
               H. Prime Kieffer   Industrial Chimneys and Water Towers of
                                  Concrete Blocks  . . . . . . . . . . . . 166--166
                George F. Worts   The Construction of an Improved Silicon
                                  Detector . . . . . . . . . . . . . . . . 167--167
              George J. Murdock   Increasing the Efficiency of Wimshurst
                                  Electric Machines  . . . . . . . . . . . 167--167
                   A. J. Jarman   Silvering Glass at Home  . . . . . . . . 167--168
               W. S. Gripenberg   Selenium Cell with Contact by Pressure   168--168
             Darwin P. Kingsley   Life Insurance and the Moral
                                  Responsibility of Employers  . . . . . . 172--174

Scientific American
Volume 102, Number 9, February 26, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 183--183
                      Anonymous   Inventions: Recently Patented Inventions 188--188
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 188--188
                      Anonymous   Index of Inventions  . . . . . . . . . . 188--191
                      Anonymous   The Commissioner of Patents' Annual
                                  Report, The All-Steel Car the Car of the
                                  Future . . . . . . . . . . . . . . . . . 178--178
                      Anonymous   Engineering, Electrical, Science . . . . 179--179
                  F. C. Coleman   A New type of Self-Discharging Coaling
                                  Vessel . . . . . . . . . . . . . . . . . 180--180
                  Percy Collins   Novel Electrical Appliances  . . . . . . 181--182
                  Edward Harran   The Cochin Forest Railway  . . . . . . . 184--185
                    L. Hussakof   The Newly Discovered Goblin Shark of
                                  Japan  . . . . . . . . . . . . . . . . . 186--187
                      Anonymous   Patent Department  . . . . . . . . . . . 187--187


Scientific American
Volume 103, Number 1, July 2, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 9--9
                      Anonymous   Recently Patented Inventions . . . . . . 15--15
                      Anonymous   Notes and Queries  . . . . . . . . . . . 15--16
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 16--16
                      Anonymous   Index of Inventions  . . . . . . . . . . 16--19
                      Anonymous   The Gould  . . . . . . . . . . . . . . . 4--4
                      Anonymous   Engineering  . . . . . . . . . . . . . . 5--5
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 5--5
                      Anonymous   Science  . . . . . . . . . . . . . . . . 5--5
                      Anonymous   Dictating Letters by Telephone . . . . . 6--6
                      Anonymous   Automobile Electric Light Plant  . . . . 6--6
                      Anonymous   An Electric Time Recorder for Flying
                                  Machines . . . . . . . . . . . . . . . . 7--7
                    W. A. Jones   Weather Forecasts for Aviators . . . . . 7--7
                      Anonymous   IS 12-Inch Armor Necessary?  . . . . . . 8--8
              Walter L. Beasley   Modeling African Mammals . . . . . . . . 10--11
           Henry Norris Russell   The Heavens in July  . . . . . . . . . . 12--12
                      Anonymous   Curiosities of Science and Invention . . 13--14
                      Anonymous   New Pack for the Army  . . . . . . . . . 17--17
                      Anonymous   The Calorizer  . . . . . . . . . . . . . 18--18

Scientific American
Volume 103, Number 10, September 3, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 179--179
                      Anonymous   Recently Patented Inventions . . . . . . 186--187
                      Anonymous   Notes and Queries  . . . . . . . . . . . 187--187
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 187--187
                      Anonymous   Index of Inventions  . . . . . . . . . . 188--191
                      Anonymous   To Limit Our Forest' Fires, The
                                  Thousand-Foot Ocean Liner, and more  . . 174--174
                      Anonymous   Engineering  . . . . . . . . . . . . . . 175--175
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 175--175
                      Anonymous   Science  . . . . . . . . . . . . . . . . 175--175
           Henry Norris Russell   Some Modern Methods of Astronomical
                                  Discovery  . . . . . . . . . . . . . . . 176--177
               William T. Walsh   Many Clocks of Many Ways . . . . . . . . 178--178
                      Anonymous   A Wonderful Sensitive Ealanee, Cold
                                  Storage of Hailstones  . . . . . . . . . 178--178
                      Anonymous   The Current Supplement . . . . . . . . . 179--179
                      Anonymous   The New Wright Biplane . . . . . . . . . 180--180
                Walter Langford   The 1910 Harmsworth Cup Race . . . . . . 181--181
                      Anonymous   Development of the Rotary Engine . . . . 182--182
                W. H. Radcliffe   Magic for Amateurs --- VIII  . . . . . . 183--183
                      Anonymous   Curiosities of Science and Invention . . 184--185
                     F. T. Aman   Meteoric Dust  . . . . . . . . . . . . . 185--185
             Charles A. Hartley   Telephone Connection for Automobilists   185--185

Scientific American
Volume 103, Number 11, September 10, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 199--199
                      Anonymous   Recently Patented Inventions . . . . . . 204--204
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 204--205
                      Anonymous   Notes and Queries  . . . . . . . . . . . 205--205
                      Anonymous   Index of Inventions  . . . . . . . . . . 205--207
                      Anonymous   Progress with the Producer-Gas Marine
                                  Engine, Can Gun Erosion be Checked?, and
                                  more . . . . . . . . . . . . . . . . . . 194--194
                      Anonymous   Engineering  . . . . . . . . . . . . . . 195--195
                      Anonymous   Electricity  . . . . . . . . . . . . . . 195--195
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 195--195
       Charles Frederick Holder   The Esperanza Stone  . . . . . . . . . . 196--196
               F. Honoré   The New Bridge at Toulouse . . . . . . . 196--197
                  Jacques Boyer   Electro-Photographic Method of
                                  Registering Heart Beats, Multiplication
                                  of Color Photographs by Contact
                                  Printing, and more . . . . . . . . . . . 197--198
                  Thomas Parker   Ligno-Concrete: An Early form of
                                  Reinforced Construction  . . . . . . . . 198--198
             Benjamin Gruenberg   William James  . . . . . . . . . . . . . 198--199
                      Anonymous   Opening of the Pennsylvania Terminal
                                  Station in New York  . . . . . . . . . . 200--201
                W. H. Radcliffe   Magic for Amateurs --- IX  . . . . . . . 202--202
                      Anonymous   Trained Women Nurses Wanted by the
                                  Government, Raising Sunken Ships . . . . 202--202
              Walter L. Beasley   Acclimating the Rocky Mountain Goat  . . 203--203

Scientific American
Volume 103, Number 12, September 17, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 215--215
                      Anonymous   Inventions: Recently Patented Inventions 222--222
                      Anonymous   Notes and Queries  . . . . . . . . . . . 223--223
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 223--223
                      Anonymous   Index of Inventions  . . . . . . . . . . 223--227
                      Anonymous   Conservative Conservation, Grade
                                  Crossings Should be Automatically
                                  Guarded, and more  . . . . . . . . . . . 210--210
                      Anonymous   Engineering  . . . . . . . . . . . . . . 211--211
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 211--211
                      Anonymous   Science  . . . . . . . . . . . . . . . . 211--211
                 Charles Forbes   Foucault's Pendulum Electrically
                                  Propelled  . . . . . . . . . . . . . . . 212--212
                  John L. Cowan   Game Farming . . . . . . . . . . . . . . 212--212
              Charles A. Sidman   How the Government Fights Forest Fires   213--213
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould} . . . . . . . . . . . . . . . . . 214--214
                      Anonymous   The Harvard Aviation Meeting . . . . . . 216--217
                W. H. Radcliffe   Magic for Amateurs --- X . . . . . . . . 218--218
                      Anonymous   Investigating the Sleeping Sickness of
                                  Uganda . . . . . . . . . . . . . . . . . 219--219
                 August Mencken   Reloading Tools and Bullet Holds . . . . 220--220
                J. A. Bergstrom   Drop Hammer for Shall Shops, A
                                  ``Wiggler'' or Telltale for Centering
                                  Work . . . . . . . . . . . . . . . . . . 220--220
                  H. D. Chapman   Hack-Saw Attachment for Lathes . . . . . 221--221
                   W. D. Graves   As to Boring Holes in Wood . . . . . . . 221--221
             Robert H. Brockman   Simple Motor-Cycle Stand . . . . . . . . 221--221
                H. H. F. Clarke   Serviceable Screw-Thread Corrector . . . 221--221
               W. Pabkhubst and   
                   K. Pabkhubst   Scroll Saw Hints . . . . . . . . . . . . 221--221

Scientific American
Volume 103, Number 13, September 24, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 235--235
                      Anonymous   Legal Notes  . . . . . . . . . . . . . . 241--241
                      Anonymous   Recently Patented Inventions . . . . . . 242--242
                      Anonymous   Notes and Queries  . . . . . . . . . . . 242--242
                      Anonymous   Index of Inventions  . . . . . . . . . . 243--247
                      Anonymous   Electric Sign Monstrosities, New York's
                                  New Subway, and more . . . . . . . . . . 230--230
                      Anonymous   Engineering  . . . . . . . . . . . . . . 231--231
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 231--231
                      Anonymous   Science  . . . . . . . . . . . . . . . . 231--231
                      Anonymous   The Humphrey Gas Pump at the Brussels
                                  Exhibition . . . . . . . . . . . . . . . 232--232
              Alfred Gradenwitz   A Novel System of X-Ray Cinematography   232--232
                Herbert T. Wade   Testing Weights and Measures in New York
                                  City . . . . . . . . . . . . . . . . . . 233--234
                      Anonymous   How the Capacity of the New York Subway
                                  Power Plant was Doubled  . . . . . . . . 234--234
                      Anonymous   Finish of the Harvard--Boston Aviation
                                  Meet . . . . . . . . . . . . . . . . . . 235--235
               Robert H. Murray   Mexico City's New Water Works System . . 236--237
                      Anonymous   Dew with a Cloudy Sky  . . . . . . . . . 237--237
                W. H. Radcliffe   Magic for Amateurs --- XI  . . . . . . . 238--238
                      Anonymous   The Current Supplement, The Shallowest
                                  Large Lake, and more . . . . . . . . . . 238--238
                      Anonymous   The Inventor's Department  . . . . . . . 239--240

Scientific American
Volume 103, Number 14, October 1, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 255--255
           Henry Norris Russell   The Heavens in October . . . . . . . . . 258--258
                      Anonymous   Recently Patented Inventions . . . . . . 262--263
                      Anonymous   Notes and Queries  . . . . . . . . . . . 263--263
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 263--263
                      Anonymous   Index of Inventions  . . . . . . . . . . 263--267
                      Anonymous   The City Beautiful, War Department Asks
                                  Advice on Atlantic Coast Canal, and more 250--250
                      Anonymous   Engineering  . . . . . . . . . . . . . . 251--251
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 251--251
                      Anonymous   Electricity  . . . . . . . . . . . . . . 251--251
                  M. M. Hunting   A New Idea in Sleeping Cars  . . . . . . 252--252
                Robert Grimshaw   Paper from Grape Vine Stems  . . . . . . 252--252
              Alfred Gradenwitz   The Production of Concrete Pipes by
                                  Centrifugal Action . . . . . . . . . . . 253--253
                W. H. Radcliffe   Magic for Amateurs --- XII . . . . . . . 254--254
            Harold J. Shepstone   The Finger-Print System of
                                  Identification . . . . . . . . . . . . . 256--257
                      Anonymous   Proposed Transatlantic Airship Flight    259--259
                John E. Mellish   Construction of 16-Inch Reflecting
                                  Telescope  . . . . . . . . . . . . . . . 260--260
             Clifton B. Summers   Suspended Rotating Liquid Jurrors for
                                  Telescopes . . . . . . . . . . . . . . . 260--261
                 Alfred Rordame   Celestial Photography for Amateurs . . . 261--261

Scientific American
Volume 103, Number 15, October 8, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 275--275
                      Anonymous   Inventions: Recently Patented Inventions 282--282
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 282--282
                      Anonymous   Index of Inventions  . . . . . . . . . . 282--285
                      Anonymous   Running a Race with Chance, Bursting of
                                  12-Inch Guns, and more . . . . . . . . . 270--270
                      Anonymous   Electricity  . . . . . . . . . . . . . . 271--271
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 271--271
                      Anonymous   Science  . . . . . . . . . . . . . . . . 271--271
                      Anonymous   A Track Lifting and Ballasting Machine   272--272
                Carl Dienstbach   ``Clement-Bayard II'', The Largest
                                  Ocean-Going Schooner Yacht . . . . . . . 273--274
                      Anonymous   The Current Supplement, A Mosquito Proof
                                  Steamer, and more  . . . . . . . . . . . 275--275
                W. H. Radcliffe   Magic for Amateurs --- XIII  . . . . . . 276--276
                      Anonymous   A New Vegetable, An Acoustic Microscope  276--276
                      Anonymous   The Early Days of Submarine Warfare  . . 277--277
              Alfred Gradenwitz   Automobile Picnics of the German Emperor 278--279
                Herbert T. Wade   The Reconstruction of the New York Fire
                                  Alarm Telegraph System . . . . . . . . . 279--279
                      Anonymous   Curiosities of Science and Invention . . 280--281

Scientific American
Volume 103, Number 16, October 15, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 295--295
                      Anonymous   Recently Patented Inventions . . . . . . 302--303
                      Anonymous   Notes and Queries  . . . . . . . . . . . 303--303
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 303--303
                      Anonymous   Index of Inventions  . . . . . . . . . . 303--307
                      Anonymous   A Warning to the Airman, Gun Erosion ---
                                  a Reply by Professor Alger, and more . . 290--290
                      Anonymous   Engineering  . . . . . . . . . . . . . . 291--291
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 291--291
                      Anonymous   Science  . . . . . . . . . . . . . . . . 291--291
                 J. F. Springer   Deep Excavation by Boring  . . . . . . . 292--292
                      Anonymous   The Vanderbilt Cup Race Slaughter  . . . 293--293
              Frederic R. Honey   The Solar and Lunar Eclipses in 1910 . . 294--295
               Willam R. Brooks   Return of the Brooks Periodic Comet  . . 295--295
                      Anonymous   A Huntsmen's School for Target Practice  296--296
                W. H. Radcliffe   Magic for Amateurs --- XIV . . . . . . . 297--297
                      Anonymous   Panspermy and Life Germs, The Cost of
                                  Motor Cars, and more . . . . . . . . . . 297--297
                   Jacqus Boyer   Apparatus Exhibited at the Exposition of
                                  the French Society of Physics  . . . . . 298--299
                 John A. Heinze   Safety Devices for Windows . . . . . . . 300--300
             Robert H. Brockman   Automobile Jack from Pipe Fittings,
                                  Improvised Turnbuckle  . . . . . . . . . 300--300
                 Charles Brecht   Automatic Vent for Gasoline Tanks  . . . 300--300
               James M. Shebvan   Quick Repair of Pump at Time of Fire,
                                  Planer Jig for Grooved Plates  . . . . . 300--300
                  H. D. Chapman   A Kink for Setting Dividers with the
                                  Micrometer, How to Make a Handy Drift,
                                  and more . . . . . . . . . . . . . . . . 300--301
                   Kenneth Rice   Small Lathe Made of a Sewing Machine, A
                                  Copper Smith's Wrinkle, and more . . . . 301--301
                   A. F. Bishop   Some Thread-Cutting Kinks  . . . . . . . 301--301

Scientific American
Volume 103, Number 17, October 22, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 323--323
                      Anonymous   Recently Patented Inventions . . . . . . 326--326
                      Anonymous   Notes and Queries  . . . . . . . . . . . 326--327
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 327--328
                      Anonymous   Index of Inventions  . . . . . . . . . . 328--331
                      Anonymous   Moisant on Tee Ast of Flying, Special
                                  Steels which may Lighten the Aeroplane,
                                  and more . . . . . . . . . . . . . . . . 310--310
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 311--311
                      Anonymous   Electricity  . . . . . . . . . . . . . . 311--311
                      Anonymous   Science  . . . . . . . . . . . . . . . . 311--311
                      Anonymous   Historical --- The Development of the
                                  Man-carrying, Motor-driven Aeroplane . . 312--314
                      Anonymous   Leading French and American Aeroplanes   315--317
              J. Bernard Walker   The Racing Aeroplane of the Future --- a
                                  Study  . . . . . . . . . . . . . . . . . 317--318
                      Anonymous   Air Craft in War . . . . . . . . . . . . 319--320
                  W. F. Bradley   Learning to Fly on French Aerodromes . . 320--322
                      Anonymous   How the Wellman Airship is Electrically
                                  Lighted  . . . . . . . . . . . . . . . . 323--323
              A. Lawrence Rotch   The Atmospheric Ocean  . . . . . . . . . 324--325

Scientific American
Volume 103, Number 18, October 29, 1910

           Henry Norris Russell   The Heavens in November  . . . . . . . . 342--342
                      Anonymous   Recently Patented Inventions . . . . . . 347--347
                      Anonymous   Notes and Queries  . . . . . . . . . . . 348--348
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 348--348
                      Anonymous   Index of Inventions  . . . . . . . . . . 348--351
                      Anonymous   Chief Engineer Vaniman on the Airship
                                  Cruise, Forests in Relation to Climate
                                  and Floods . . . . . . . . . . . . . . . 334--334
                      Anonymous   Engineering  . . . . . . . . . . . . . . 335--335
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 335--335
                      Anonymous   Science  . . . . . . . . . . . . . . . . 335--335
                     John Cowan   Our Wasted Seaweed Resources . . . . . . 336--336
                  Jacques Boyer   A Prismatic Altitude and Azimuth
                                  Instrument . . . . . . . . . . . . . . . 337--338
                  John B. Huber   The Psychology of Aviation . . . . . . . 338--338
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould} . . . . . . . . . . . . . . . . . 338--338
                W. H. Radcliffe   Magic for Amateurs --- XV  . . . . . . . 339--339
                      Anonymous   Story of the Wellman Ocean Air Trip  . . 340--341
               Frank C. Perkins   Combination Gasoline Traction Engine
                                  with Ditcher Wheel Attachment  . . . . . 343--343
                Joseph B. Baker   The Inventor's Department  . . . . . . . 344--346

Scientific American
Volume 103, Number 19, November 5, 1910

                      Anonymous   Recently Patented Inventions . . . . . . 366--366
                      Anonymous   Notes and Queries  . . . . . . . . . . . 366--367
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 367--367
                      Anonymous   Index of Inventions  . . . . . . . . . . 367--369
                      Anonymous   The International Aviation Meet at
                                  Belmont Park, Illuminating Engineering,
                                  and more . . . . . . . . . . . . . . . . 354--354
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 355--355
                      Anonymous   Electricity  . . . . . . . . . . . . . . 355--355
                      Anonymous   Science  . . . . . . . . . . . . . . . . 355--355
                      Anonymous   A Novel Type of Gas-Lamp Pole  . . . . . 356--356
                 J. F. Springer   Cold Forging . . . . . . . . . . . . . . 356--356
                      Anonymous   The Bomb Cannon --- a Novel Type of
                                  Heavy Ordnance . . . . . . . . . . . . . 357--357
              Frederic R. Honey   A Moving Observatory . . . . . . . . . . 358--358
             Arthur H. J. Keane   Novel Stage Decorations --- A New Branch
                                  of Textile Industry  . . . . . . . . . . 358--358
                  John B. Hubeb   Tissues and Organs Cultivated Outside
                                  the Body, Forest Fires, and more . . . . 359--359
                  Jacques Boyer   A New Method of Measuring the Effect of
                                  Light Upon Dyes and Pigments . . . . . . 360--360
                      Anonymous   The International Aviation Meet, The
                                  Wonderful Balloon Record of the
                                  ``America II'' . . . . . . . . . . . . . 361--363
           Sydney Whetmore Ashe   The Home Laboratory  . . . . . . . . . . 364--364
                   A. J. Jarman   Fireproof Starch . . . . . . . . . . . . 364--365
                Gustave Michaud   An Olfactory Paradox . . . . . . . . . . 365--365
            Oddur C. Sigurdsson   Home-Made Electric Clock . . . . . . . . 365--365
                  B. B. Heaford   Storage Battery Alarm  . . . . . . . . . 365--365

Scientific American
Volume 103, Number 2, July 9, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 27--27
                      Anonymous   Recently Patented Inventions . . . . . . 35--35
                      Anonymous   Notes and Queries  . . . . . . . . . . . 35--35
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 35--36
                      Anonymous   Index of Inventions  . . . . . . . . . . 36--38
                      Anonymous   Announcement of Rules for the
                                  Gould--\booktitleScientific American . . 22--22
                      Anonymous   Engineering  . . . . . . . . . . . . . . 23--23
                      Anonymous   Electricity  . . . . . . . . . . . . . . 23--23
                      Anonymous   Science  . . . . . . . . . . . . . . . . 23--23
                      Anonymous   A Giant Steam Excavator  . . . . . . . . 24--24
                      F. Honore   The Two Highest Masonry Bridges in the
                                  World  . . . . . . . . . . . . . . . . . 25--25
                Cabl Dienstbach   The Wreck of the ``Deutschland'' . . . . 26--26
              Thomas D. Gannawy   The Government's Money Laundry . . . . . 26--26
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould}, Wanted: Information about
                                  Dishonest Patent Schemes . . . . . . . . 27--27
                      Anonymous   A Colossal Illuminated Advertising
                                  Display  . . . . . . . . . . . . . . . . 28--29
               Herbert Brackett   Novel Electric Towing Locomotive for
                                  Canal Locks  . . . . . . . . . . . . . . 30--31
                Walter Langford   An Improved Boomerang  . . . . . . . . . 31--31
                W. H. Radcliffe   Magic for Amateurs --- I . . . . . . . . 32--32
               Frank C. Perkins   Electric-Lamp Heating and Cooking
                                  Devices  . . . . . . . . . . . . . . . . 33--34
                   A. F. Bishop   Carrying Water with the Help of a Hoop   34--34
                 C. A. Umoselle   A Cheap Home-Made Roller . . . . . . . . 34--34
                   R. H. Cronyn   Easily Constructed Electric Toaster  . . 34--34
                       T. Fagan   Holder for Broken Saw Blades . . . . . . 34--34
             Chauncey W. Nieman   A Convenient Drawing-Board . . . . . . . 34--34
                      Anonymous   The Current Supplement, Guiding Signals
                                  for Aeronauts  . . . . . . . . . . . . . 39--39

Scientific American
Volume 103, Number 20, November 12, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 379--379
                      Anonymous   Recently Patented Inventions . . . . . . 385--385
                      Anonymous   Index of Inventions  . . . . . . . . . . 385--386
                      Anonymous   Notes and Queries  . . . . . . . . . . . 387--387
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 387--387
                      Anonymous   Balloons as Training Schools for
                                  Aviators, Direct Solar Radiation as an
                                  Element of Climate, and more . . . . . . 374--374
                      Anonymous   Electricity  . . . . . . . . . . . . . . 375--375
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 375--375
                      Anonymous   Science  . . . . . . . . . . . . . . . . 375--375
                  Jacques Boyer   The Manufacture of Wood Pulp . . . . . . 376--378
                Carl Dienstbach   The Gas-supported Airship  . . . . . . . 378--378
                      Anonymous   The Launching of the World's Greatest
                                  Ship . . . . . . . . . . . . . . . . . . 380--380
                      Anonymous   The International Aviation Meet  . . . . 381--381
                  Percy Collins   A New Electric Locomotive  . . . . . . . 382--382
                 Edgar J. Banks   The Use of Metals 6,000 Vean Ago,
                                  Maine's Output of Metal  . . . . . . . . 382--382
                      Anonymous   Curiosities of Science and Invention . . 383--384

Scientific American
Volume 103, Number 21, November 19, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 399--399
                      Anonymous   Recently Patented Inventions . . . . . . 405--405
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 405--405
                      Anonymous   Index of Inventions  . . . . . . . . . . 405--406
                      Anonymous   Notes and Queries  . . . . . . . . . . . 407--407
                      Anonymous   Naval Reorganization and the Coming
                                  Congress, The Aeroplane for Commercial
                                  Use, and more  . . . . . . . . . . . . . 394--394
                      Anonymous   Electricity  . . . . . . . . . . . . . . 395--395
                      Anonymous   Science  . . . . . . . . . . . . . . . . 395--395
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 395--396
                      Anonymous   Parachute Clothes for Aviators, New
                                  Processes in the Manufacture of
                                  Superphosphates, and more  . . . . . . . 396--396
                      Anonymous   A Mechanical Water Recorder  . . . . . . 397--398
                  Elwood Haynes   ``Stellite,'' a New Alloy  . . . . . . . 398--398
                      Anonymous   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould} . . . . . . . . . . . . . . . . . 399--399
                Herbert T. Wade   What are Sun-Spots?  . . . . . . . . . . 400--401
                  Jacques Boyer   The New Dosne Heliograph . . . . . . . . 402--402
              Frederick K. Lord   Handyman's Workshop  . . . . . . . . . . 403--404
                   H. B. Dailey   Water-Jet Pump fob Home Use, Method of
                                  Duplicating a Tapered Spindle, and more  404--404
                  H. D. Chapman   How to Line up the Centers in a Lathe    404--404
                J. A. Bergstrom   Cutting a Worm Wheel with a Tap  . . . . 404--404
                       W. J. C.   Ingenious, Tube Expander . . . . . . . . 404--404

Scientific American
Volume 103, Number 22, November 26, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 419--419
                      Anonymous   Recently Patented Inventions . . . . . . 425--425
                      Anonymous   Notes and Queries  . . . . . . . . . . . 425--425
                      Anonymous   Index of Inventions  . . . . . . . . . . 425--426
                      Anonymous   The Language of Flying, The New
                                  Tri-Borough Subway, and more . . . . . . 414--414
                      Anonymous   Engineering  . . . . . . . . . . . . . . 415--415
                      Anonymous   Electricity  . . . . . . . . . . . . . . 415--415
                      Anonymous   Science  . . . . . . . . . . . . . . . . 415--415
                    W. A. Jones   Action of an Acid Product of Combustion
                                  on Copper Smokestacks  . . . . . . . . . 416--416
                      Anonymous   Life-Preserving Garment for Aviators . . 416--416
              Alfred Gradenwitz   Photographing the Flight of Projectiles  417--417
                      Anonymous   Launching an Aeroplane from a Warship    418--418
                      Anonymous   The Year's Progress on the Panama Canal  420--421
                 Dennis M'neill   The Inventor's Department  . . . . . . . 422--422
                  M. M. Hunting   Erasing by Electricity, Non-Explosive
                                  Oil Can  . . . . . . . . . . . . . . . . 422--422
                      Anonymous   Results of the Inventors' Contest  . . . 423--424

Scientific American
Volume 103, Number 23, December 3, 1910

           Henry Norris Russell   The Heavens in December  . . . . . . . . 442--442
                      Anonymous   Recently Patented Inventions . . . . . . 445--445
                      Anonymous   Index of Inventions  . . . . . . . . . . 445--446
                      Anonymous   Johnstone's Fate and its Lesson, Studies
                                  of Root Life, and more . . . . . . . . . 434--434
                      Anonymous   Electricity  . . . . . . . . . . . . . . 435--435
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 435--435
                      Anonymous   Science  . . . . . . . . . . . . . . . . 435--435
                      Anonymous   The Award of the \booktitleScientific
                                  American Medal . . . . . . . . . . . . . 436--436
                Joseph B. Baker   Electric Hot-Water Supply System . . . . 437--437
                   H. E. Miller   Motor-Driven Plow and Cultivator . . . . 437--437
                Herbert T. Wade   The Life of the Deep Sea . . . . . . . . 438--439
             M. Hamilton Talbot   Scientific Breeding of Animals and
                                  Plants . . . . . . . . . . . . . . . . . 440--440
                      Anonymous   A Typewriter that Operates Without Noise 441--441
                      Anonymous   The Home Laboratory  . . . . . . . . . . 443--443
               Howard B. Dailey   Simple Spectroscope for Studying
                                  Bright-Line Spectra  . . . . . . . . . . 443--444
                   A. J. Jarman   Simple Experiments with Carbonic Acid
                                  Gas  . . . . . . . . . . . . . . . . . . 444--444

Scientific American
Volume 103, Number 24, December 10, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 459--459
                      Anonymous   Recently Patented Inventions . . . . . . 466--466
                      Anonymous   Index of Inventions  . . . . . . . . . . 466--467
                      Anonymous   The Forthcoming German Antarctic
                                  Expedition, Rapidity in Warship
                                  Construction, and more . . . . . . . . . 454--454
                      Anonymous   Electricity  . . . . . . . . . . . . . . 455--455
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 455--455
                      Anonymous   Science  . . . . . . . . . . . . . . . . 455--455
               Frank C. Perkins   An English Automobile Turbine Fire Pump  456--456
              Alfred Gradenwitz   A Novel Ergograph  . . . . . . . . . . . 456--456
                      Anonymous   Flying Machines, Living and Lifeless . . 457--457
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Flying Machine Prize}} Offered
                                  by {Mr. Edwin Gould} . . . . . . . . . . 458--458
                   A. J. Jarman   Some Incidents in the Early Life of
                                  Ferranti . . . . . . . . . . . . . . . . 458--458
              Charles A. Sidman   Oil Losses by Fire . . . . . . . . . . . 458--459
       Charles S. Braddock, Jr.   The Future of Rubber in the Far East . . 459--459
            Hereward Carrington   Handcuffs; and Escapes Therefrom . . . . 460--460
                      Anonymous   A Locomotive Stage . . . . . . . . . . . 461--463
              Hamilton M. Greer   Largest Concrete Oil Reservoirs in the
                                  World  . . . . . . . . . . . . . . . . . 462--463
                      Anonymous   Curiosities of Science and Invention . . 464--465
                   A. W. Cutleb   Unique Water Bicycle . . . . . . . . . . 465--466

Scientific American
Volume 103, Number 25, December 17, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 479--479
                      Anonymous   Recently Patented Inventions . . . . . . 486--486
                      Anonymous   Index of Inventions  . . . . . . . . . . 486--486
                      Anonymous   The Secretary of the Navy's Report, The
                                  Interborough's Attitude to the Public,
                                  and more . . . . . . . . . . . . . . . . 474--474
                      Anonymous   Electricity  . . . . . . . . . . . . . . 475--475
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 475--475
                      Anonymous   Science  . . . . . . . . . . . . . . . . 475--475
                      Anonymous   The First Marine Aeroplane . . . . . . . 476--476
                  Harold Bastin   Photographing Living Insects . . . . . . 477--477
                      Anonymous   A Great Rapid Transit System for A Great
                                  City . . . . . . . . . . . . . . . . . . 478--478
                   Albert Moyer   Cement Concrete Vats and Tanks, The
                                  Current Supplement, and more . . . . . . 479--479
                  Jacques Boyer   The Tenth Lepine Toy Exhibition  . . . . 480--480
                      Anonymous   The Largest Ship: The ``Europa'' . . . . 481--481
            Hereward Carrington   Sacks, Bags, Boxes, Trunks, Milk Cans,
                                  Packing Cases, and Escapes Therefrom . . 482--482
                  C. B. M'Gahey   Home-Made Display Sign . . . . . . . . . 483--483
               Albert F. Bishop   A Wrinkle in Dovetailing . . . . . . . . 483--483
                 C. G. Harcourt   How to Make a Moving-Picture Camera  . . 483--483
                J. A. Bergstrom   Enlarging a Tapped Hole and Reducing a
                                  Screw  . . . . . . . . . . . . . . . . . 483--483
                       W. J. C.   Thumb-Indexing a Book, Handy Centers For
                                  Lathes . . . . . . . . . . . . . . . . . 483--484
                  H. B. Chapman   Grinding a Straight-End Taper Reamer,
                                  Shop Notes . . . . . . . . . . . . . . . 484--484
               Joseph N. Parker   How to Bind \booktitleScientific
                                  Americans at Home  . . . . . . . . . . . 484--484
                      Anonymous   Hunters of Rock Crystal  . . . . . . . . 490--491

Scientific American
Volume 103, Number 26, December 24, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 499--501
                      Anonymous   Recently Patented Inventions . . . . . . 506--506
                      Anonymous   Notes and Queries  . . . . . . . . . . . 506--506
                      Anonymous   Index of Inventions  . . . . . . . . . . 506--507
                      Anonymous   The Census of 1910, is the United States
                                  or Germany the Second Naval Power?, and
                                  more . . . . . . . . . . . . . . . . . . 494--494
                      Anonymous   Engineering  . . . . . . . . . . . . . . 495--495
                      Anonymous   Electricity  . . . . . . . . . . . . . . 495--495
                      Anonymous   Science  . . . . . . . . . . . . . . . . 495--495
               Frank C. Perkins   Workmen's Molded Concrete Homes  . . . . 496--499
                Joseph B. Baker   The Cooper Hewitt Light-Transforming
                                  Reflector  . . . . . . . . . . . . . . . 502--502
                      Anonymous   The Inventor's Department  . . . . . . . 503--503
                      Anonymous   Some Queer Poultry Inventions  . . . . . 504--504
                 Will B. Wilder   The Trials of an Inventor, Legal Notes,
                                  and more . . . . . . . . . . . . . . . . 505--505
                      Anonymous   The New Mexico Range Caterpillar, New
                                  Paper Materials, and more  . . . . . . . 508--511

Scientific American
Volume 103, Number 27, December 31, 1910

                      Anonymous   Recently Patented Inventions . . . . . . 525--525
                      Anonymous   Notes and Queries  . . . . . . . . . . . 525--525
                      Anonymous   Index of Inventions  . . . . . . . . . . 525--526
                      Anonymous   The Greater ``\booktitleScientific
                                  American'' . . . . . . . . . . . . . . . 514--515
                      Anonymous   New Aeroplane Duration and Distance
                                  Records  . . . . . . . . . . . . . . . . 516--516
                      Anonymous   Work on St. Martin Canal, Paris  . . . . 517--518
              Walter L. Beasley   The Secretary Bird . . . . . . . . . . . 520--521
                      Anonymous   A Portable Collapsible Mast  . . . . . . 522--522
           Sydney Whetmore Ashe   Electrical Projection Experiments ---
                                  III  . . . . . . . . . . . . . . . . . . 523--523
                       W. J. C.   Metallo-Chromes  . . . . . . . . . . . . 523--523
              Frederic R. Honey   A Substitute for a Telescope Driving
                                  Clock  . . . . . . . . . . . . . . . . . 523--524
                  Norman Barden   A Photographic Telescope . . . . . . . . 524--524
               George N. Wilcox   A Cheap Hydro-Comparator . . . . . . . . 524--524
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 529--530
                      Anonymous   The Overestimated Antiseptic Power of
                                  Vinegar  . . . . . . . . . . . . . . . . 531--531

Scientific American
Volume 103, Number 3, July 16, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 47--48
                      Anonymous   Recently Patented Inventions . . . . . . 54--54
                      Anonymous   Notes and Queries  . . . . . . . . . . . 54--55
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 55--55
                      Anonymous   Index of Inventions  . . . . . . . . . . 55--58
                      Anonymous   The Myth of the Aeroplane Bomb, Giovanni
                                  Schiaparelli . . . . . . . . . . . . . . 42--42
                      Anonymous   Engineering  . . . . . . . . . . . . . . 43--43
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 43--43
                      Anonymous   Science  . . . . . . . . . . . . . . . . 43--43
                      Anonymous   Radium Collector for Electricity . . . . 44--44
                      Anonymous   Instrument for Solving Problems of
                                  Navigation . . . . . . . . . . . . . . . 44--44
                 J. H. Crabtree   Safety Appliances in the Cotton-Spinning
                                  Industry . . . . . . . . . . . . . . . . 45--46
             Joseph T. S. Baker   Flashing the Hour from the Metropolitan
                                  Tower  . . . . . . . . . . . . . . . . . 48--49
                W. H. Radcliffe   Magic for Amateurs --- II  . . . . . . . 50--50
                      Anonymous   Photographing Projectiles in Flight  . . 51--51
                 Sidney W. Ashe   Simple Experiments in Steam and
                                  Combustion . . . . . . . . . . . . . . . 52--53
                Gustave Michaud   A Hydrostatic Paradox  . . . . . . . . . 53--53
                      Anonymous   How Much Light is Absorbed by Paper
                                  Hangings and Their Like? . . . . . . . . 59--59

Scientific American
Volume 103, Number 4, July 23, 1910

                      Anonymous   Correspondence: Correspondences  . . . . 67--69
                      Anonymous   Recently Patented Inventions . . . . . . 72--72
                      Anonymous   Index of Inventions  . . . . . . . . . . 72--73
                      Anonymous   The Resignation of Rear-Admiral Capps, A
                                  Suggestion for the Fulton Memorial, and
                                  more . . . . . . . . . . . . . . . . . . 62--62
                      Anonymous   Engineering  . . . . . . . . . . . . . . 63--63
                      Anonymous   Electricity  . . . . . . . . . . . . . . 63--63
                      Anonymous   Science  . . . . . . . . . . . . . . . . 63--63
                     R. W. Wood   Autograph of a Thunderbolt . . . . . . . 64--64
               P. E. M'Clenahan   Denatured Alcohol from Cacti, A Novel
                                  Wind Wagon . . . . . . . . . . . . . . . 64--64
               Frank C. Perkins   A Tubular High-Speed Catamaran Motor
                                  Boat . . . . . . . . . . . . . . . . . . 64--64
                   Barnum Brown   A Dinosaur Skeleton With Skin, 3,000,000
                                  Years Old  . . . . . . . . . . . . . . . 65--65
                Thomas Gannaway   Our New Currency Machines  . . . . . . . 66--67
                W. H. Radcliffe   Magic for Amateurs --- III . . . . . . . 70--70
                    L. Ramakers   A Novel Mountain Elevator  . . . . . . . 71--71

Scientific American
Volume 103, Number 5, July 30, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 83--83
           Henry Norris Russell   The Heavens in August  . . . . . . . . . 87--87
                      Anonymous   Notes and Queries  . . . . . . . . . . . 91--91
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 91--91
                      Anonymous   Index of Inventions  . . . . . . . . . . 91--93
                      Anonymous   The Chicago--New York and St. Louis--New
                                  York Races, The 12-Inch Gun Catastrophe
                                  at Fort Monroe, and more . . . . . . . . 78--78
                      Anonymous   Engineering  . . . . . . . . . . . . . . 79--79
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 79--79
                      Anonymous   Science  . . . . . . . . . . . . . . . . 79--79
              Alfred Gradenwitz   A New Improvement in the Belin Process
                                  of Picture Telegraphy  . . . . . . . . . 80--80
                      Anonymous   The Military Automobile as a Weapon
                                  against Airships and Flying Machines . . 81--82
                  W. F. Bradley   Summary of the Rheims Aviation Meet, The
                                  Current Supplement . . . . . . . . . . . 82--82
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould} . . . . . . . . . . . . . . . . . 83--83
                  Jacques Boyer   Motion Pictures of the Flight of Insects 84--85
                W. H. Radcliffe   Magic for Amateurs --- IV  . . . . . . . 86--86
                      Anonymous   Curiosities of Science and Invention . . 88--89

Scientific American
Volume 103, Number 6, August 6, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 103--103
                      Anonymous   Recently Patented Inventions . . . . . . 110--110
                      Anonymous   Notes and Queries  . . . . . . . . . . . 111--111
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 111--111
                      Anonymous   Index of Inventions  . . . . . . . . . . 111--113
                      Anonymous   The Extinction of Our Merchant Marine,
                                  Superheating vs. Compounding, and more   98--98
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 99--99
                      Anonymous   Electricity  . . . . . . . . . . . . . . 99--99
                      Anonymous   Science  . . . . . . . . . . . . . . . . 99--99
        François Richard   A Röntgen-Ray Cabinet . . . . . . . . . . 100--100
                Walter Langford   Marine Propulsion with
                                  Turbo-Transformers . . . . . . . . . . . 101--102
                  John B. Huber   A Universal Differential Pressure
                                  Chamber  . . . . . . . . . . . . . . . . 102--102
                  Jacques Boyer   The New Phetographic Apparatus of the
                                  Paris School of Mines  . . . . . . . . . 104--104
             Arthur H. J. Keane   A Submarine Military Tunnel  . . . . . . 104--104
                      Anonymous   The Mechanical Side of Coney Island ---
                                  Where the Imaginative Inventor Holds
                                  Sway . . . . . . . . . . . . . . . . . . 104--105
                W. H. Radcliffe   Magic for Amateurs --- V . . . . . . . . 106--106
                 Charles Perrin   The Dufestel Thoracograph  . . . . . . . 107--107
                  D. Pennington   Improved Corner Wrench, Laying Out a
                                  Curved Walk  . . . . . . . . . . . . . . 108--108
               E. R. Taber, Jr.   An Emergency Pressure Pump, Lining up a
                                  Punch and Die  . . . . . . . . . . . . . 108--108
                    J. B. Allen   Improved Method of Cutting Keyways . . . 108--109
                  C. M. Eveleth   Method of Grinding Planer Knives . . . . 109--109
              John A. Bergstrom   How to Make a Serviceable Gear-Wheel,
                                  Chambering Out a Hole  . . . . . . . . . 109--109
                  H. D. Chapman   How to Cut a Curve on a Planer . . . . . 109--109
                   A. F. Bishop   Quick Method of Riveting Rouge Work  . . 109--109
             Robert H. Brockman   Cure for Sagging Screen Doors  . . . . . 109--109
                 George A. Page   Improved Mortising Chisel  . . . . . . . 109--109
                  Thaleon Blake   Hastily-Made Fruit Picker  . . . . . . . 109--109

Scientific American
Volume 103, Number 7, August 13, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 122--123
                      Anonymous   Legal Notes  . . . . . . . . . . . . . . 129--129
                      Anonymous   Recently Patented Inventions . . . . . . 131--131
                      Anonymous   Notes and Queries  . . . . . . . . . . . 131--131
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 131--132
                      Anonymous   Index of Inventions  . . . . . . . . . . 132--133
                      Anonymous   Our Ignorance of Wind Pressure, The
                                  ``Erbsloeh'' Disaster, and more  . . . . 118--118
                      Anonymous   Engineering  . . . . . . . . . . . . . . 119--119
                      Anonymous   Electricity  . . . . . . . . . . . . . . 119--119
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 119--119
                Walter Langford   Liquefied Illuminating Gas . . . . . . . 120--120
             Thomas D. Gannaway   \$500,000,000 Ready for an Emergency . . 121--122
                      Anonymous   New Mare Island Drydock, Official
                                  Meteorological Summary, New York, N.Y.,
                                  July, 1910, and more . . . . . . . . . . 123--123
                Carl Dienstbach   The Parseval Airship . . . . . . . . . . 124--124
                W. H. Radcliffe   Magic for Amateurs --- VI  . . . . . . . 125--125
            Charles J. Woodbury   Luther Burbank's Wonderful Work in
                                  Horticulture . . . . . . . . . . . . . . 126--127
                      Anonymous   The Inventor's Department  . . . . . . . 128--129
                      Anonymous   Brief Notes Concerning Patents, Safety
                                  Device for Gas Ranges  . . . . . . . . . 129--130

Scientific American
Volume 103, Number 8, August 20, 1910

                      Anonymous   Correspondence . . . . . . . . . . . . . 143--143
                      Anonymous   Recently Patented Inventions . . . . . . 148--149
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 149--149
                      Anonymous   Index of Inventions  . . . . . . . . . . 149--151
                      Anonymous   What Should be Done with the ``Maine''?,
                                  Fine Work by the Army Engineers at
                                  Panama, and more . . . . . . . . . . . . 138--138
                      Anonymous   Engineering  . . . . . . . . . . . . . . 139--139
                      Anonymous   Electricity  . . . . . . . . . . . . . . 139--139
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 139--139
                      Anonymous   Impressions of Fabric on Lead Bullets    140--140
               Frank C. Perkins   A Gasoline Motor-Driven Tile Ditcher . . 141--142
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould} . . . . . . . . . . . . . . . . . 142--142
        Schuyler Skaats Wheeler   An Autobiography of an Artesian Well,
                                  White Phosphorous in Match Making  . . . 143--143
                  Monica Bastin   Artistic Wax Work  . . . . . . . . . . . 144--144
               James G. M'Curdy   Sands that Imprison Ships  . . . . . . . 145--145
                      Anonymous   Electric Clocks  . . . . . . . . . . . . 146--146
                      Anonymous   The Work of the Sand Artist  . . . . . . 147--147
                     H. T. Wade   Putting New York's Fire Department on a
                                  Motor Basis  . . . . . . . . . . . . . . 147--147

Scientific American
Volume 103, Number 9, August 27, 1910

                      Anonymous   Recently Patented Inventions . . . . . . 166--166
                      Anonymous   Notes and Queries  . . . . . . . . . . . 166--167
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 167--167
                      Anonymous   Index of Inventions  . . . . . . . . . . 167--169
                      Anonymous   The Airman and the Bird, Advent of the
                                  Oil-Engine-Driven Ocean Steamship, and
                                  more . . . . . . . . . . . . . . . . . . 154--154
                      Anonymous   Engineering  . . . . . . . . . . . . . . 155--155
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 155--155
                      Anonymous   Science  . . . . . . . . . . . . . . . . 155--155
                 Fernand Honore   The Effect of Tarred Roads upon Trees
                                  and Shrubs . . . . . . . . . . . . . . . 156--156
                      Anonymous   A Huge Propeller Testing-Plant . . . . . 157--157
                      Anonymous   Comparison of the Argentine Battleship
                                  ``Rivadavia'' with the ``Wyoming'' . . . 158--159
                   H. A. Crafts   Economic Value of Wild Birds . . . . . . 160--160
                  Jacques Boyer   New and Simplified Physical Apparatus    161--161
           Henry Norris Russell   The Heavens in September . . . . . . . . 162--162
                W. H. Radcliffe   Magic for Amateurs --- VII . . . . . . . 163--163
                Gustave Michaud   A Touch-Me-Not Trick . . . . . . . . . . 164--164
                     T. J. Moon   Home-Built Apparatus for Making
                                  Photo-Micrographs  . . . . . . . . . . . 164--164
                   Alan S. Dana   A Simple Wireless Telephone  . . . . . . 164--165
                   A. J. Jarman   Coating Metals and Alloys by Immersion,
                                  A Soap Bubble Celebration, and more  . . 165--165
                George A. James   Simple Laboratory Thermostat . . . . . . 165--165
                      Anonymous   Cross-Country Aeroplane Races in France
                                  and England  . . . . . . . . . . . . . . 170--170
                      Anonymous   Berlin's New Postal Subway, Who Invented
                                  the Word ``Blizzard''? . . . . . . . . . 171--171


Scientific American
Volume 104, Number 1, January 7, 1911

           Henry Norris Russell   The Heavens in January . . . . . . . . . 9--9
                      Anonymous   Inventions: Recently Patented Inventions 17--18
                      Anonymous   Notes and Queries  . . . . . . . . . . . 18--18
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 18--18
                      Anonymous   A Great Work Nobly Done, A Step
                                  Backward, and more . . . . . . . . . . . 2--3
                      Anonymous   A Huge Electrically Driven Clock . . . . 4--4
                      Anonymous   Luxurious Private Car for South America  5--5
              Frederic R. Honey   Variations in Saturn's Rings . . . . . . 6--6
                 J. F. Springer   The Squaring of the Circle . . . . . . . 6--7
                Marcus Benjamin   Prof. Albert Abraham Michelson . . . . . 8--8
                  M. M. Hunting   Uncle Sam's Mine Rescue Cars . . . . . . 8--8
                      Anonymous   Abstracts from Current Scientific
                                  Periodicals  . . . . . . . . . . . . . . 10--10
              Walter L. Beasley   A Great Zoological Park  . . . . . . . . 11--11
                  Thomas Fowler   Turning a Shaft with an Emergency Lathe  14--14
                   B. F. Albert   To Bend Metal Edgewise . . . . . . . . . 14--14
                    George Rice   Signs of Cement  . . . . . . . . . . . . 14--14
                J. W. Bergstrom   Cutter for Strawboard, Hints for the
                                  Handy Man, and more  . . . . . . . . . . 14--15
                  H. D. Chapman   Handy Micrometer Tools . . . . . . . . . 15--15
           Frederick B. Gilbert   How to Compute the Velocity of a Bullet  15--15
                   A. F. Bishop   Suggestions for Rewinding Armatures  . . 15--15
                       G. Worts   Casts Made with the Electric Arc . . . . 15--15
                      Anonymous   The Inventor's Department  . . . . . . . 16--16
                      Anonymous   Patent Oddities, Brief Notes on
                                  Inventions, and more . . . . . . . . . . 17--17
                      Anonymous   Breeding Successful Strains of Basket
                                  Willows  . . . . . . . . . . . . . . . . 20--21

Scientific American
Volume 104, Number 10, March 11, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 246--246
           Henry Norris Russell   The Heavens in March . . . . . . . . . . 249--249
                      Anonymous   Notes and Queries  . . . . . . . . . . . 260--263
                      Anonymous   Wanted --- An American Atlas, ``Having
                                  Eyes, they See Not'', and more . . . . . 242--242
                      Anonymous   Giant Girders in the New Municipal
                                  Building . . . . . . . . . . . . . . . . 243--243
                      Anonymous   London's New Gasoline-electric Omnibus   244--244
                      Anonymous   Old Battleships as Permanent Forts . . . 245--246
                Joseph B. Baker   How Sugar is Tested  . . . . . . . . . . 247--247
                      Anonymous   Recent Aeronautic Progress . . . . . . . 248--248
                      Anonymous   Science in the Current Periodicals . . . 250--252
                Gustave Michaud   Some Optical Experiments with Liquids    253--253
                  A. J. Jarntan   A Home-made Storage Battery  . . . . . . 253--254
                C. G. Kiplinger   Improvised Disk Talking Machiney . . . . 254--254
                H. H. F. Clarke   Bottles Intended for Corrosive Liquids   254--254
                      Anonymous   The Inventor's Department  . . . . . . . 255--258
               E. Moulié   The Soap-nut Tree  . . . . . . . . . . . 259--260

Scientific American
Volume 104, Number 11, March 18, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 272--272
                      Anonymous   Inventions: Recently Patented Inventions 289--289
                      Anonymous   The Cement Era, The \booktitleScientific
                                  American in the Canadian Parliament  . . 268--268
                      Anonymous   Jacobus Henricus van't Hoff  . . . . . . 269--269
                      Anonymous   The Making of an Aeroplane Propeller . . 270--270
                C. J. Blanchard   The Dedication of the Roosevelt Dam  . . 271--272
               Ralph C. Davison   The Problem of Waterproofing . . . . . . 273--273
                Edward D. Boyer   Portland Cement: What is it? . . . . . . 274--274
                    M. L. Davey   Saving Trees by the Use of Cement  . . . 275--275
                 J. P. H. Perry   The One-piece House  . . . . . . . . . . 276--277
                 Allen E. Beals   The Cement Market  . . . . . . . . . . . 278--278
                Albert A. Moyer   Odd Uses of Concrete . . . . . . . . . . 279--281
                 Walter Bernard   The Mammoth Locks of the Panama Canal    282--283
            Frederick A. Norris   Ornamental Concrete  . . . . . . . . . . 284--285
                      Anonymous   The Returns  . . . . . . . . . . . . . . 286--286
                   P. E. Keller   A Home-made Valve Grinder  . . . . . . . 286--286
                 John Y. Dunlop   Aerating Apparatus for a Fish Tank . . . 286--286
                       R. C. D.   Removing Stud-bolts Without an Alligator 286--286
                 H. T. Peterson   Handy Pipe-puller  . . . . . . . . . . . 286--286
                       M. W. G.   Suggestion for Foundry Ladles  . . . . . 286--286
                      Anonymous   Science in the Current Periodicals . . . 287--287
                      Anonymous   The Inventor's Department  . . . . . . . 288--288

Scientific American
Volume 104, Number 12, March 25, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 303--303
                      Anonymous   Inventions: Recently Patented Inventions 313--314
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 314--314
                      Anonymous   Notes and Queries  . . . . . . . . . . . 316--316
                      Anonymous   The Gould--\booktitleScientific American 298--298
                      Anonymous   The Submersible ``Kobben'' for the
                                  Norwegian Navy . . . . . . . . . . . . . 299--299
                      Anonymous   Life-Savers for Aviators . . . . . . . . 300--300
                  Arthur Buxton   The Automobile as an Advertiser  . . . . 301--302
                Alfred J. Lotka   The Triumph of Intellect Over Instinct   302--302
                  Barrett Smith   The Largest Hydraulic Turbines in
                                  Existence  . . . . . . . . . . . . . . . 304--304
                Carl Dienstbach   Christening the ``Suchard''  . . . . . . 304--305
                Herbert T. Wade   New York's Automobile Fire Service . . . 306--306
                  Jacques Boyer   Head Noises and how one Scientist
                                  Studies Them . . . . . . . . . . . . . . 307--307
                      Anonymous   Science in the Current Periodicals . . . 308--309
                  Norman Barden   Photo-micrography for Amateurs . . . . . 310--310
       Frederick William Salmon   Simple Hydro-comparators . . . . . . . . 310--310
                      Anonymous   Curiosities of Science and Invention . . 311--311
                      Anonymous   The Inventor's Department  . . . . . . . 312--313
                      Anonymous   Polishing Powder for Glass . . . . . . . 317--317

Scientific American
Volume 104, Number 13, April 1, 1911

           Henry Norris Russell   The Heavens in April . . . . . . . . . . 332--332
                      Anonymous   Inventions: Recently Patented Inventions 337--338
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 338--338
                      Anonymous   Notes and Queries  . . . . . . . . . . . 340--340
                      Anonymous   Why not Revive Preferential Duties?, Our
                                  Naval Guns and Powder, and more  . . . . 322--322
                 P. F. Mottelay   Edouard Branly . . . . . . . . . . . . . 323--323
             Charles F. Burgess   Electrolytic Iron --- Can it be Made an
                                  Industrial Product?  . . . . . . . . . . 323--323
                      Anonymous   Aviation Exploits at Home and Abroad . . 324--324
                      Anonymous   Two Recent European Compound Locomotives 325--325
                Ruel W. Roberts   Notes on the Planets, Asteroids, and
                                  Occultations of April, 1911, The Current
                                  Supplement, and more . . . . . . . . . . 326--326
                      Anonymous   What do you Think of the
                                  \booktitleScientific American? . . . . . 327--327
                      Anonymous   Science in the Current Periodicals and
                                  Books  . . . . . . . . . . . . . . . . . 328--329
                      Anonymous   Sinking a Battleship at Six Miles  . . . 330--331
              T. C. Butler, Jr.   Internal-combustion Engines for
                                  Industrial Power in the Southern States  331--331
                      Anonymous   Handy Men's Opinions of Handy Man's
                                  Workshop, Cutting Left-hand Threads, and
                                  more . . . . . . . . . . . . . . . . . . 333--333
               Albert F. Bishop   Calipering Webs and Chambered Holes  . . 333--333
                  H. D. Chapman   Machining Balls and Sockets  . . . . . . 333--334
              Claude L. Woolley   An Emergency Bit Brace . . . . . . . . . 334--334
          Charles J. Hackenberg   Making Concrete Tile . . . . . . . . . . 334--334
                  John D. Adams   Kinks from an Amateur's Bench, A Punch
                                  Used in Boiler Shops, and more . . . . . 334--334
                      Anonymous   The Inventor's Department  . . . . . . . 335--337
               Franklin O. King   Cucumbers versus Corporations  . . . . . 343--343

Scientific American
Volume 104, Number 14, April 8, 1911

                      Anonymous   Inventions: Recently Patented Inventions 361--362
                      Anonymous   Notes and Queries: Note and Queries  . . 362--363
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 363--363
                      Anonymous   Sport for Sport's Sake, Fire Drills in
                                  Factories, and more  . . . . . . . . . . 346--346
               Frank C. Perkins   Nocturnal Warfare  . . . . . . . . . . . 347--347
                      Anonymous   Presentation of the \booktitleScientific
                                  American Trophy  . . . . . . . . . . . . 348--349
             Walter H. Woodward   Old Coins and Ancient Bankers  . . . . . 350--350
                      Anonymous   The Le Verrier Centenary, The Current
                                  Supplement, and more . . . . . . . . . . 350--350
                      Anonymous   What do you Think of the
                                  \booktitleScientific American? . . . . . 351--351
            Harold J. Shepstone   Monsters of Bygone Ages  . . . . . . . . 352--352
                      Anonymous   Science in the Current Periodicals . . . 354--355
                      Anonymous   ``Aki'', the First Japanese Dreadnought  356--356
                      Anonymous   How do you Like the Home Laboratory? . . 357--357
             Chauncey W. Nieman   A Combined Battery and Motor . . . . . . 357--357
                  Norman Barden   Projectile Photography . . . . . . . . . 357--358
                H. H. F. Clarke   Neat Method of Testing Shutter-speeds    358--358
                John E. Mellish   Improvised Stereoscopic Camera,
                                  Silvering Reflectors, and more . . . . . 358--358
                James J. Newton   The Inventor's Department  . . . . . . . 359--361
                      Anonymous   Public Roads, Irrigation Investigations  364--364

Scientific American
Volume 104, Number 15, April 15, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 377--377
                      Anonymous   Inventions: Recently Patented Inventions 386--386
                      Anonymous   Notes and Queries  . . . . . . . . . . . 387--387
                      Anonymous   Will the Tungsten Lamp Raise Rates?, The
                                  Bunsen Centenary, and more . . . . . . . 372--372
               Louis C. Tiffany   The Tasteful Use of Light  . . . . . . . 373--373
                      Anonymous   Combating the Sleeping Sickness  . . . . 373--373
               E. C. Crittenden   Light and Shadows  . . . . . . . . . . . 374--375
                   J. A. Holmes   Good Coal and Poor . . . . . . . . . . . 376--376
                      Anonymous   Drawing the Charge --- Our Cover Design,
                                  The Adoption of Greenwich Standard Time
                                  in France  . . . . . . . . . . . . . . . 377--377
               James F. Martine   Heating the Home . . . . . . . . . . . . 378--378
                Joseph B. Baker   Lamps of To-day  . . . . . . . . . . . . 379--379
                Putnam A. Bates   Light and Power on the Farm  . . . . . . 380--381
                      Anonymous   Inventing the Light of the Future  . . . 382--383
                      Anonymous   Science in the Current Periodicals . . . 384--384
                      Anonymous   The Inventor's Department  . . . . . . . 385--386
                      Anonymous   The Current Supplement, Tipping the
                                  Shores of Hudson Bay . . . . . . . . . . 394--394

Scientific American
Volume 104, Number 16, April 22, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 403--403
                      Anonymous   Inventions: Recently Patented Inventions 413--414
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 414--414
                      Anonymous   Notes and Queries  . . . . . . . . . . . 415--418
                      Anonymous   The Rewards and Penalties of Polar
                                  Exploration, Multiple Engines for
                                  Passenger-carrying Aeroplanes, and more  398--398
            Edward L. Thorndike   G. Stanley Hall  . . . . . . . . . . . . 399--399
                   C. H. Claudy   Drawing Maps from Nature . . . . . . . . 400--401
              Frederic R. Honey   The Total Solar Eclipse of 1911  . . . . 402--402
                      Anonymous   Science in the Current Periodicals . . . 404--405
                      Anonymous   Battleship versus Destroyer  . . . . . . 406--406
                      Anonymous   A New Aeroplane Passenger-carrying
                                  Record . . . . . . . . . . . . . . . . . 407--407
              Earle L. Ovington   The Gordon Bennett International
                                  Aviation Trophy  . . . . . . . . . . . . 407--407
                   C. S. Bourne   An Adjustable Rose Reamer  . . . . . . . 408--408
                   Albert Mayoh   Light Fixture for a Shipping Room  . . . 408--408
                     O. Ruehmer   A Novel Pipe Wrench  . . . . . . . . . . 408--408
                       H. D. C.   How to Rebore a Crank-pin Hole in a
                                  Locomotive Driving-wheel . . . . . . . . 408--408
                   W. D. Graves   Removing a Broken Handle from an Ax Head 408--408
             A. R. Van der Veer   Direct-Indirect Lighting Fixtures, Fan
                                  on Grinder Spindle, and more . . . . . . 409--410
                   A. F. Bishop   Removing Old Boiler Tubes, A Handy Drill
                                  Socket, and more . . . . . . . . . . . . 409--410
                      Anonymous   The Inventor's Department  . . . . . . . 411--413
                      Anonymous   Lakes Tipped by Winds, Aeronautics . . . 418--419

Scientific American
Volume 104, Number 17, April 29, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 427--427
           Henry Norris Russell   The Heavens in May . . . . . . . . . . . 431--431
                      Anonymous   Inventions: Recently Patented Inventions 434--434
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 434--434
                      Anonymous   Notes and Queries  . . . . . . . . . . . 436--437
                      Anonymous   One of the Dangers of Flight in a Wind,
                                  Secrecy in Modern Industries, and more   422--422
                      Anonymous   Wilhelm Ostwald  . . . . . . . . . . . . 423--423
                      Anonymous   The Voisin ``Canard'' Biplane  . . . . . 424--424
                      Anonymous   A Painting in Glass on a Canvas of
                                  Concrete . . . . . . . . . . . . . . . . 425--425
              Francis T. Bowles   American Merchant Marine . . . . . . . . 426--427
                      Anonymous   Science in the Current Periodicals . . . 428--429
                      Anonymous   Curiosities of Science and Invention . . 430--430
                 Sydney W. Ashe   Experiments on Light . . . . . . . . . . 432--432
                   A. J. Jarman   Copper Connections for Battery Carbons   432--432
                      Anonymous   The Inventor's Department  . . . . . . . 433--434
                      Anonymous   The Light of the Glow-worm . . . . . . . 435--435
                      Anonymous   Plants that Like Cold, Strange Ocean
                                  Chasms, and more . . . . . . . . . . . . 437--437

Scientific American
Volume 104, Number 18, May 6, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 447--447
                      Anonymous   Notes and Queries  . . . . . . . . . . . 455--459
                      Anonymous   Artistic Engineering, Why we Outbid
                                  Europe on Battleships, and more  . . . . 442--442
                Joseph B. Baker   Charles Proteus Steinmetz: An
                                  Appreciation . . . . . . . . . . . . . . 443--443
              Charles L. Wright   Heat from Dust . . . . . . . . . . . . . 444--444
                      Anonymous   The Biggest Ship and the Biggest Dock    445--446
                 Alfred Emerson   Cyrene and Dr. Herbert de Cou, Waves in
                                  Solid Metal, and more  . . . . . . . . . 446--446
               Marius C. Krarup   Ups and Downs of Acetylene, A
                                  Sound-proof Room, and more . . . . . . . 447--447
                      Anonymous   The Eighth Motor Boat Meeting at Monaco  448--449
                      Anonymous   Science in the Current Periodicals . . . 450--451
                  H. D. Chapman   Copper in Steady Rest Jaws . . . . . . . 452--452
                     O. Ruehmer   Planing a Cylinder Surface on a Lathe    452--452
               Albert F. Bishop   Lubricating Iron Planes  . . . . . . . . 452--452
                   W. D. Graves   Why a Light Hammer is Used in Riveting,
                                  Shop Notes, and more . . . . . . . . . . 452--452
               Ralph C. Davison   A Useful Device for Lettering Tracings,
                                  Protecting the Threads of a Chuck, and
                                  more . . . . . . . . . . . . . . . . . . 452--452
                      Anonymous   The Inventor's Department  . . . . . . . 453--454

Scientific American
Volume 104, Number 19, May 13, 1911

                      Anonymous   Notes and Queries  . . . . . . . . . . . 492--493
                      Anonymous   Aims and Accomplishments in Aeronautics,
                                  A Centenary in Photography, and more . . 462--462
            Albert Francis Zahm   Octave Chanute . . . . . . . . . . . . . 463--463
               Marius C. Krarup   The Coroner's Inquest  . . . . . . . . . 464--465
                Carl Dienstbach   The Dirigible or To-day  . . . . . . . . 466--468
                William McEntee   Aeroplane Propellers . . . . . . . . . . 468--469
       Grover Cleveland Loening   Automatic Stability of Aeroplanes  . . . 470--471
                      Anonymous   Some Famous American Aviators and
                                  Designers  . . . . . . . . . . . . . . . 472--472
                      Anonymous   Some Famous European Aviators and
                                  Designers  . . . . . . . . . . . . . . . 473--474
                      Anonymous   A Ten Million Dollar Aerial Navy for One
                                  Dreadnought  . . . . . . . . . . . . . . 475--475
                      Anonymous   Aviation Prizes at Home and Abroad . . . 475--475
                      Anonymous   Abstracts from Current Periodicals . . . 476--477
                      Anonymous   The Story of the Cadillac  . . . . . . . 478--479
               Hayner H. Gordon   The Inventor's Department  . . . . . . . 480--491
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Flying Machine Prize}} Offered
                                  by {Mr. Edwin Gould} . . . . . . . . . . 487--487
            Percy G. B. Morriss   Aeronautic Wireless Telegraphy . . . . . 489--489

Scientific American
Volume 104, Number 2, January 14, 1911

                      Anonymous   The Death Roll of the Aeroplane,
                                  Producer Gas Engines for Marine use, and
                                  more . . . . . . . . . . . . . . . . . . 28--28
                      Anonymous   Glenn Curtiss Wins the
                                  \booktitleScientific American Trophy . . 29--29
                Joseph B. Baker   Thomas A. Edison's Latest Invention  . . 30--30
              William W. Hudson   The Modern Pleasure Electric Vehicle . . 31--32
                 Harry W. Perry   Some Remarkable Mechanical Road Guides   33--33
         Harold Whiting Slauson   Why you can Buy a Good Car for Little
                                  Money  . . . . . . . . . . . . . . . . . 34--35
                 Harry W. Perry   The Commercial Motor Truck vs. the Horse 36--37
               Herbert L. Towle   A Few Shop Jobs on an Old Car  . . . . . 38--39
               Herbert L. Towle   Repainting the Old Car at Home . . . . . 39--41
                   H. P. Wilkin   The Small, Inexpensive Garage  . . . . . 42--42
                      Anonymous   The Tragic End of Moisant and Hoxsey . . 43--43
                 John C. Sparks   Automobile Cylinder Lubricating Oils . . 44--44
                      Anonymous   The Motorcycles of 1911  . . . . . . . . 44--44
                      Anonymous   Decorating Madison Square Garden, Our
                                  Insect-Ridden Timber, Patents and
                                  Government Employees, and more . . . . . 53--55

Scientific American
Volume 104, Number 20, May 20, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 502--502
                      Anonymous   Inventions: Recently Patented Inventions 509--509
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 510--510
                      Anonymous   Flying in a Wind, Chutes as Fire
                                  Escapes, and more  . . . . . . . . . . . 498--498
                   Mary Proctor   Vacant Regions in the Milky Way  . . . . 499--499
                 J. F. Springer   Measuring the Deviation of Bore Holes    500--500
                  Deshler Welch   Curious History of a Great Obelisk . . . 500--500
                      Anonymous   The Competitive Designs for the New
                                  Quebec Bridge  . . . . . . . . . . . . . 501--501
                      Anonymous   Anti-rolling Tanks for Steadying Ships
                                  at Sea . . . . . . . . . . . . . . . . . 502--502
                      Anonymous   Abstracts from Current Periodicals . . . 503--504
              Walter L. Beasley   A Wonderful Dinosaur Mummy . . . . . . . 505--505
                      Anonymous   Curiosities of Science and Invention . . 506--506
                       W. J. C.   A Seven-cent Battery . . . . . . . . . . 507--507
           Frederick B. Gilbert   Home-made Anemometer . . . . . . . . . . 507--507
                  W. R. Inghram   Drawing Solid Objects with a Reflecting
                                  Apparatus  . . . . . . . . . . . . . . . 507--507
                   R. W. Crowly   The Inventor's Department  . . . . . . . 508--509
                      Anonymous   The Earning Power of Your Money  . . . . 510--510
                      Anonymous   Packing for Export . . . . . . . . . . . 513--513

Scientific American
Volume 104, Number 21, May 27, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 526--526
                      Anonymous   Inventions: Recently Patented Inventions 532--534
                      Anonymous   Notes and Queries  . . . . . . . . . . . 534--536
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 534--534
                      Anonymous   Niagara Falls Again Threatened,
                                  Automobile and Aeroplane Records, and
                                  more . . . . . . . . . . . . . . . . . . 518--518
                      Anonymous   ``Ehrlich-Hata 606'' . . . . . . . . . . 519--519
                      Anonymous   American Ideas in British Battleships    520--521
                George A. James   The Restoration of Documents Charred by
                                  Fire . . . . . . . . . . . . . . . . . . 521--521
               Frank C. Perkins   Automobile Novelties . . . . . . . . . . 522--522
                    George Rice   How Automobile Numbers are Concealed . . 522--522
                  Jacques Boyer   The Beff Electric Tricycle . . . . . . . 522--522
                      Anonymous   The Variable Speed Aeroplane . . . . . . 523--523
                Russell L. Dunn   Forests and Water Supply . . . . . . . . 525--525
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould} . . . . . . . . . . . . . . . . . 526--526
                      Anonymous   The New York Public Library  . . . . . . 527--529
               Albert F. Bishop   The Handy Boatman  . . . . . . . . . . . 530--530
        William Grötzinger   How to Insert Small Screws . . . . . . . 530--530
                      Anonymous   The Inventor's Department  . . . . . . . 531--532

Scientific American
Volume 104, Number 22, June 3, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 547--547
           Henry Norris Russell   The Heavens in June  . . . . . . . . . . 548--548
                      Anonymous   Inventions: Recently Patented Inventions 554--554
                      Anonymous   Notes and Queries  . . . . . . . . . . . 555--555
                      Anonymous   The Demand for a Better Parcels Post,
                                  Scientific Management on Sea and Shore,
                                  and more . . . . . . . . . . . . . . . . 542--543
                      Anonymous   Hitting the Target at Seven Miles  . . . 544--545
              James Cooke Mills   The New Ship Canal and Locks of the St.
                                  Mary's River . . . . . . . . . . . . . . 546--547
                      Anonymous   A Twenty-five-cent Photographic
                                  Objective  . . . . . . . . . . . . . . . 549--549
                A. H. Patterson   An Experimental Proof of Inverted
                                  Retinal Images . . . . . . . . . . . . . 549--549
                      Anonymous   Abstracts from Current Periodicals . . . 550--551
                      Anonymous   Curiosities of Science and Invention . . 552--552
                      Anonymous   The Inventor's Department  . . . . . . . 553--554
                      Anonymous   The Current Supplement, Queer Mountain
                                  Shadows, and more  . . . . . . . . . . . 557--557

Scientific American
Volume 104, Number 23, June 10, 1911

                      Anonymous   Inventions: Recently Patented Inventions 574--575
                      Anonymous   Notes and Queries  . . . . . . . . . . . 576--576
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 576--576
                      Anonymous   National Archives in Danger, Serious but
                                  not Alarming, and more . . . . . . . . . 562--562
                      Anonymous   The Paris--Rome--Turin Aeroplane Race    563--563
                      Anonymous   Waterspouts  . . . . . . . . . . . . . . 564--564
                  John B. Huber   ``Mad Dogs'' and Hydrophobia . . . . . . 565--566
         William Atherton DuPuy   Col. George Washington Goethals, Canal
                                  Builder  . . . . . . . . . . . . . . . . 567--567
                   A. J. Jarman   Design for a Small, Reversible Rotary
                                  Steam Engine . . . . . . . . . . . . . . 568--568
               Glenn W. Persons   Picture-framing Outfit . . . . . . . . . 568--568
                       G. A. M.   How to Prevent a Small Drill from
                                  Breaking . . . . . . . . . . . . . . . . 568--568
                 Harry E. Wells   Underground Engine Muffler . . . . . . . 568--568
                 H. F. Williams   Magnetic Door Stop . . . . . . . . . . . 568--568
               Day Allen Willey   Making Life Figures of the Roosevelt
                                  Trophies . . . . . . . . . . . . . . . . 569--569
                      Anonymous   Abstracts from Current Periodicals . . . 570--571
                      Anonymous   The Inventor's Department  . . . . . . . 572--573
                      Anonymous   Legal Notes  . . . . . . . . . . . . . . 574--574

Scientific American
Volume 104, Number 24, June 17, 1911

        William Atherton Du Puy   Inventions: The Inventor's Department    602--602
            George Westinghouse   How I Invented the Air Brake . . . . . . 602--604
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 605--606
                      Anonymous   The Steel Railroad Car, The Law of the
                                  Air, and more  . . . . . . . . . . . . . 584--584
             Judson C. Clements   The Interstate Commerce Law  . . . . . . 585--586
                    W. C. Brown   Relations of the Railroads to the Public
                                  --- Co-operative, Not Antagonistic . . . 587--587
              William E. Hooper   Transcontinental Railroads in the United
                                  States . . . . . . . . . . . . . . . . . 588--589
              Herbert T. Walker   The Growth of American Locomotives and
                                  Railroads  . . . . . . . . . . . . . . . 590--591
                  J. W. Whitman   The Transcontinental Railroads of Canada 592--593
                 Walter Bernard   The World's Greatest Railway Terminal    594--595
              Charles B. Brewer   A Substitute for the Rate Increase . . . 596--598
             C. Fitzhugh Talman   Hygroscopes --- Quaint and Curious . . . 599--599
                      Anonymous   Abstracts from Current Periodicals . . . 600--601
                      Anonymous   The Railroad Man and his watch, Plants
                                  Breaking up an Island and more . . . . . 610--611

Scientific American
Volume 104, Number 25, June 24, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 619--619
                      Anonymous   Inventions: Recently Patented Inventions 627--630
                      Anonymous   Notes and Queries  . . . . . . . . . . . 630--630
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 630--630
                      Anonymous   The Gould--\booktitleScientific American
                                  Prize, The Preservation of Niagara
                                  Falls, and more  . . . . . . . . . . . . 614--614
                      Anonymous   Sir Hiram Maxim  . . . . . . . . . . . . 615--615
             Emma M. V. Triepel   Our National Earthquake Recorder . . . . 616--616
                      Anonymous   Uncovering the ``Maine'' . . . . . . . . 617--617
                   Mary Proctor   John D. Hooker and the One Hundred-inch
                                  Reflector  . . . . . . . . . . . . . . . 618--618
                      Anonymous   Identification of Dye Woods, New
                                  Aeroplane Speed Records in France  . . . 618--618
                      Anonymous   Longer Piers for Giant Steamships  . . . 619--619
                  Willard Young   Dynamite as a Railroad Builder . . . . . 620--620
                      Anonymous   Catskill Water Supply Tunnel Below the
                                  Hudson River . . . . . . . . . . . . . . 621--621
                      Anonymous   Abstracts from Current Periodicals . . . 622--623
               Antony H. Jannus   Learning how to Fly  . . . . . . . . . . 624--624
                J. A. Bergstrom   How to Rebore an Engine Cylinder on a
                                  Common Lathe . . . . . . . . . . . . . . 625--625
                Charles Cloukey   A Good Glue Clamp  . . . . . . . . . . . 625--625
                    G. H. Ander   Fishing for Bolts  . . . . . . . . . . . 625--625
                      Anonymous   The Inventor's Department  . . . . . . . 626--627
            George Westinghouse   How I Invented the Air Brake --- II,
                                  Legal Notes  . . . . . . . . . . . . . . 627--627
                      Anonymous   Leicester Allen, The Current Supplement  632--632

Scientific American
Volume 104, Number 3, January 21, 1911

                      Anonymous   Inventions: Recently Patented Inventions 72--74
                      Anonymous   Notes and Queries  . . . . . . . . . . . 75--75
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 75--75
                      Anonymous   Sex and Scientific Recognition,
                                  Indorsement of the Reclamation Service,
                                  The Selden Patent  . . . . . . . . . . . 58--58
                      Anonymous   A System of Multiplex Telephony and
                                  Telegraphy . . . . . . . . . . . . . . . 59--59
                  John B. Huber   The Man-Machine  . . . . . . . . . . . . 60--60
              Raymond C. Osburn   Transporting Living Animals with the Aid
                                  of Oxygen  . . . . . . . . . . . . . . . 61--61
                Carl Dienstbach   The Brucker Transatlantic Airship
                                  Expedition . . . . . . . . . . . . . . . 62--62
                   Hudson Maxim   Our Smokeless Cannon Powder the Best . . 63--63
                      Anonymous   Abstracts from Current Scientific
                                  Periodicals  . . . . . . . . . . . . . . 64--64
                      Anonymous   The Commercial Utilization of Solar
                                  Radiation and Wind Power . . . . . . . . 65--65
                      Anonymous   The Real Cause of Hoxsey's Death,
                                  Automobiles for Transporting Airship
                                  Guns . . . . . . . . . . . . . . . . . . 66--66
               Day Allen Willey   Draining the Everglades  . . . . . . . . 67--69
                Robert H. Bowen   The Liquefaction of Nitric Oxide . . . . 70--70
               Frank C. Perkins   A Unique Wind Vane and Electric
                                  Indicator  . . . . . . . . . . . . . . . 70--70
                George F. White   A Self-cooled Spark Gap  . . . . . . . . 70--71
                Gustave Michaud   A Mirror Illusion  . . . . . . . . . . . 71--71
    Albert Alexander Somerville   A Freak Barometer  . . . . . . . . . . . 71--72
                      Anonymous   Women and Scientific Research, Sea Water
                                  a Liquid Food, The Speaking Clock  . . . 77--79
                      Anonymous   Electricity, Engineering . . . . . . . . 78--78
                      Anonymous   Aeronautics, Science . . . . . . . . . . 79--79

Scientific American
Volume 104, Number 4, January 28, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 86--86
                      Anonymous   Inventions: Recently Patented Inventions 97--97
                      Anonymous   The Reefing Aeroplane, Emancipation of
                                  the Truck Horse, Why This Neglect? . . . 82--82
                      Anonymous   Sir Francis Galton F.R.S.  . . . . . . . 83--83
                      Allen Day   A Nantucket Windmill of 1746 Still in
                                  Operation  . . . . . . . . . . . . . . . 84--84
                      Anonymous   Two Interesting New French Aeroplanes    85--85
                      Anonymous   The Rescue of a Sunken German Submarine  87--87
          Benjamin C. Gruenberg   Mimicry with the Mimic Left Out  . . . . 87--87
               A. A. Somerville   Equilibrium and Rest Positions . . . . . 88--88
              Randolph I. Geare   Some Typical Groups of American
                                  Aborigines . . . . . . . . . . . . . . . 89--89
                      Anonymous   Science in the Current Periodicals . . . 90--92
                      Anonymous   Curiosities of Science and Invention . . 93--93
                      Anonymous   The Schilowsky Low-speed Gyroscope
                                  Monorail . . . . . . . . . . . . . . . . 94--94
                      Anonymous   The Inventor's Department  . . . . . . . 95--101
                      Anonymous   Electricity, Engineering . . . . . . . . 102--102
                      Anonymous   Aeronautics, Science . . . . . . . . . . 103--103

Scientific American
Volume 104, Number 5, February 4, 1911

           Henry Norris Russell   The Heavens in February  . . . . . . . . 116--116
                      Anonymous   Correspondence . . . . . . . . . . . . . 117--117
                      Anonymous   Inventions: Recently Patented Inventions 122--123
                      Anonymous   Notes and Queries  . . . . . . . . . . . 123--123
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 123--123
                      Anonymous   Larger Ships --- Longer Piers, The Need
                                  of Fog Investigations, and more  . . . . 106--106
                 P. F. Mottelay   Sir James Dewar, F.R.S.  . . . . . . . . 107--107
                      Anonymous   The First Flight from Shore to Ship  . . 108--108
          Benjamin C. Gruenberg   Ten Million Dollars for Science  . . . . 109--110
                Joseph B. Baker   The Mail-handling System at the New
                                  Pennsylvania Railroad Station, New York
                                  City . . . . . . . . . . . . . . . . . . 110--111
             J. Mayne Baltimore   Freak Shadows in Oil . . . . . . . . . . 111--111
                      Anonymous   Science in the Current Periodicals . . . 112--113
               William F. Rigge   A Shadow in Court  . . . . . . . . . . . 114--115
                  R. W. Roberts   An Opportunity to Catch an Asteroid with
                                  a Small Instrument . . . . . . . . . . . 117--117
                      Anonymous   Oil Stops for Milling Machines . . . . . 118--118
                   W. D. Graves   To Sharpen a Bit . . . . . . . . . . . . 118--118
                   Edward Tiede   Grooved Pulley for Experimental Work . . 118--119
              Howard M. Nichols   Electric Torch Lighter . . . . . . . . . 119--119
               Albert F. Bishop   Casting Gold Centrifugally . . . . . . . 119--119
                      Anonymous   The Inventor's Department  . . . . . . . 120--122
             Thomas D. Gannaway   ``Uncle Sam's'' Automatic Dampening
                                  Machine  . . . . . . . . . . . . . . . . 120--121
                      Anonymous   Curiosities of Science and Invention . . 124--127
                      Anonymous   Electricity, Engineering . . . . . . . . 126--126
                      Anonymous   Aeronautics, Science . . . . . . . . . . 127--127

Scientific American
Volume 104, Number 6, February 11, 1911

                      Anonymous   Inventions: Recently Patented Inventions 145--146
                      Anonymous   Notes and Queries  . . . . . . . . . . . 147--149
                      Anonymous   To Manage the Manager, The Communipaw
                                  Dynamite Disaster, and more  . . . . . . 130--130
                 P. F. Mottelay   John Ambrose Fleming, F.R.S  . . . . . . 131--131
              John Fulton Greer   First Flight of an American Aeroplane
                                  from the Water . . . . . . . . . . . . . 132--132
                      Anonymous   McCurdy's Flight Across the Florida
                                  Straits  . . . . . . . . . . . . . . . . 132--132
                   C. H. Claudy   His Life in his Hands  . . . . . . . . . 133--133
              Frederic R. Honey   Morning and Evening Stars for 1911 . . . 134--135
                      Anonymous   As Others See Us . . . . . . . . . . . . 135--135
                      Anonymous   Science in the Current Periodicals . . . 136--138
                      Anonymous   An Electric Recording Rifle Range Target 139--139
                 Sydney W. Ashe   Experiments on Light . . . . . . . . . . 140--140
                    W. P. White   A Simple and Adaptable form of
                                  Electrical . . . . . . . . . . . . . . . 140--141
               Chancy W. Nieman   A Magnetic Snake . . . . . . . . . . . . 141--141
          E. H. Williamson, Jr.   A Sensitive Relay for Wireless
                                  Telegraphy . . . . . . . . . . . . . . . 141--141
                Gustave Michaud   Colored Shadows  . . . . . . . . . . . . 141--141
              Edward G. Acheson   The Inventor's Department  . . . . . . . 142--145

Scientific American
Volume 104, Number 7, February 18, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 162--162
                      Anonymous   Inventions: Recently Patented Inventions 182--182
                      Anonymous   Notes and Queries  . . . . . . . . . . . 183--183
                      Anonymous   The New Stars, An Example in
                                  Turbine-Steamer Construction, and more   156--156
                Wilhelm Ostwald   Svante August Arrhenius  . . . . . . . . 157--157
                 Calvin Tomkins   The Necessity of Longer Piers for the
                                  Port of New York . . . . . . . . . . . . 158--158
                      Anonymous   Some Recent French Monoplanes  . . . . . 159--159
                      Anonymous   Science in the Current Periodicals . . . 160--161
                  Willard Young   Dynamite on the Farm . . . . . . . . . . 163--163
                 W. J. Spillman   Creating New Animals and Plants  . . . . 164--165
               Ralph C. Davison   Cement on the Farm . . . . . . . . . . . 166--167
                     W. H. Beal   The New Science of the Soil  . . . . . . 168--169
                M. R. D. Owings   New Methods and New Machines for the
                                  Farm . . . . . . . . . . . . . . . . . . 170--174
        Charles Fitzhugh Talman   The Farmer and the Weather Bureau  . . . 175--176
                    L. W. Ellis   The Small Motor on the Farm  . . . . . . 177--178
                   B. F. Albert   Starting a Clogged Drain . . . . . . . . 179--179
                Charles Clonkey   A Talk About Bits, Cutting Keyways on a
                                  Lathe, and more  . . . . . . . . . . . . 179--180
               Albert F. Bishop   A Home-built Forge for the Workshop  . . 180--180
                      Anonymous   The Inventor's Department  . . . . . . . 181--181
                    Hiram Maxim   The Solution of a Riddle, Statistical
                                  Data in the Annual Report of the
                                  Commissioner of Patents  . . . . . . . . 181--182
                      Anonymous   Neon Light by Our Berlin Correspondent   189--191

Scientific American
Volume 104, Number 8, February 25, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 199--199
                      Anonymous   Inventions: Recently Patented Inventions 209--209
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 210--210
                      Anonymous   Notes and Queries  . . . . . . . . . . . 213--213
                      Anonymous   Our Decadent Merchant Marine, The
                                  Importance of a Wood Collection in the
                                  National Museum, and more  . . . . . . . 194--194
                 P. F. Mottelay   Professor Gisbert Kapp . . . . . . . . . 195--195
                      Anonymous   New Things in Aeronautics  . . . . . . . 196--196
              John Fulton Greer   Curtiss's Single Hydroplane Float for
                                  Aeroplanes . . . . . . . . . . . . . . . 196--196
                Walter Langford   Labor Saving by Automobile Power . . . . 197--197
                   G. L. Carden   Observations Among the Workshops of
                                  Europe --- I . . . . . . . . . . . . . . 198--198
                      Anonymous   The Pan-American Commercial Congress, A
                                  Menace to the Alfalfa Crop, and more . . 198--198
                      Anonymous   Uncovering the ``Maine'' . . . . . . . . 199--199
             M. Hamilton Talbot   Fighting Death in Mines  . . . . . . . . 200--201
                      Anonymous   Science in the Current Periodicals . . . 202--203
                      Anonymous   Liquefaction of Nitric Oxide . . . . . . 204--204
               Albert S. Getten   A Home-made Portrait Attachment for a
                                  Camera of Fixed Focus  . . . . . . . . . 204--204
        Albert R. J. F. Hassard   Construction of a Four-and-a-Half-Inch
                                  Reflector  . . . . . . . . . . . . . . . 204--205
               B. C. Batcheller   Graphic Demonstration of Cometary Orbits 205--205
                   C. S. Bourne   A Modified Form of the Opeidoscope . . . 205--205
                   H. B. Dailey   An Easily Made Leyden Jar Charger, How
                                  Clouds Get their Fringes, and more . . . 205--205
                      Anonymous   Curiosities of Science and Invention . . 206--206
                      Anonymous   The Inventor's Department  . . . . . . . 207--209
                      Anonymous   Fuel from Nile Sudd  . . . . . . . . . . 212--212

Scientific American
Volume 104, Number 9, March 4, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 223--223
                      Anonymous   Inventions: Recently Patented Inventions 233--234
                      Anonymous   Notes and Queries  . . . . . . . . . . . 237--237
                      Anonymous   The Panama Canal Must be Fortified, Oil
                                  Fuel on Ocean Liners, and more . . . . . 218--218
                 P. F. Mottelay   Silvanus Philipps Thompson, F.R.S. . . . 219--219
                      Anonymous   The Southernmost Meteorological Station
                                  of the World, The Physiology of
                                  Marching, and more . . . . . . . . . . . 219--219
                Herbert T. Wade   An Automobile Water Tower  . . . . . . . 220--220
                      Anonymous   The Blériot ``Bus'' . . . . . . . . . . . 221--221
                   G. L. Carden   Observations Among the Workshops of
                                  Europe --- II  . . . . . . . . . . . . . 222--222
                Frank C. Perkin   The Largest Electric Valve in the World  222--222
                      Anonymous   Wanted: A Trimming Machine for Paper
                                  Hangers, The Current Supplement, and
                                  more . . . . . . . . . . . . . . . . . . 223--223
                 S. A. Mitchell   The New Star in Lacerta  . . . . . . . . 224--225
                      Anonymous   Science in the Current Periodicals . . . 226--227
                      Anonymous   A Referendum . . . . . . . . . . . . . . 228--228
                   W. D. Graves   Miter Box for Odd Angles . . . . . . . . 228--228
               Ralph C. Davison   Case for Phonograph Records  . . . . . . 228--228
               C. F. A. Siedhof   The Handy Man's Furnace Ashpan . . . . . 228--229
                 Jacob F. Kropp   Non-Freezing Connections for the
                                  Water-Jacket . . . . . . . . . . . . . . 229--229
               Albert F. Bishop   Repairing the Bottom Wall of a Lead Pipe 229--229
          E. W. Williamsom, Jr.   An Automatic Cut-off for Electric
                                  Gas-lighting Circuit . . . . . . . . . . 229--229
                  H. M. Nichols   Rawhide Hammer, Cone Center Dividers,
                                  and more . . . . . . . . . . . . . . . . 229--229
                      Anonymous   A Novel Compass for Aeroplanes . . . . . 230--230
              Alfred Gradenwitz   Ruhmer's Recent Work in Wireless
                                  Telegraphy . . . . . . . . . . . . . . . 230--230
                    William Day   The Inventor's Department  . . . . . . . 231--232
                Carl Dienstbach   The New Rigid Dirigible of the English
                                  Navy. ``NI.'', Glycerine, and more . . . 235--236


Scientific American
Volume 105, Number 1, July 1, 1911

           Henry Norris Russell   The Heavens in July  . . . . . . . . . . 10--10
                      Anonymous   Inventions: Recently Patented Inventions 14--15
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 15--15
                      Anonymous   Notes and Queries  . . . . . . . . . . . 16--16
                      Anonymous   The Utility of Beauty, A New Danger for
                                  the Airman, and more . . . . . . . . . . 2--2
                      Anonymous   Cross-Country Aeroplane Races in Europe  3--4
             Thomas D. Gannaway   One Hundred and Forty-four Postal Cards
                                  per Second . . . . . . . . . . . . . . . 5--5
                E. L. Jones and   
                    S. Y. Beach   Table of American Aeronautic Motors  . . 6--6
                      Anonymous   Campaniles, Medieval and Modern  . . . . 6--7
                      Anonymous   The New White Star Liner ``Olympic'' . . 8--9
                      Anonymous   Curiosities of Science and Invention . . 11--11
                      Anonymous   The Inventor's Department  . . . . . . . 12--13
            George Westinghouse   How I Invented the Air Brake --- III . . 13--14
                        S. Bose   Lithopone and its Manufacture, Aviation
                                  Sickness, and more . . . . . . . . . . . 17--19

Scientific American
Volume 105, Number 10, September 2, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 206--206
           Henry Norris Russell   The Heavens in September 1911  . . . . . 208--208
                      Anonymous   Inventions: Recently Patented Inventions 215--215
                      Anonymous   Notes and Queries  . . . . . . . . . . . 216--216
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 216--216
                      Anonymous   The Mystery of the ``Maine'', A Record
                                  Aeroplane Tour, and more . . . . . . . . 202--202
              Alfred Gradenwitz   Hospital Cars of the Swiss Federal
                                  Railways . . . . . . . . . . . . . . . . 203--203
                      Anonymous   The Largest Movable Wicket Dam . . . . . 204--204
           William J. Humphreys   The Isolation of an Ion  . . . . . . . . 205--206
                      Anonymous   Curiosities of Science and Invention . . 207--207
                      Anonymous   Abstracts from Current Periodicals . . . 209--209
                    Ludw Diller   The Mystery of the ``Maine'' . . . . . . 210--212
                      Anonymous   The Inventor's Department  . . . . . . . 213--220

Scientific American
Volume 105, Number 11, September 9, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 227--227
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 235--235
                      Anonymous   Notes and Queries  . . . . . . . . . . . 235--235
                      Anonymous   The ``Oregon'' a Prototype of the
                                  Dreadnought?, ``The World Patent'', and
                                  more . . . . . . . . . . . . . . . . . . 222--222
       Thomas Commerford Martin   Bion Joseph Arnold . . . . . . . . . . . 223--223
                      Anonymous   The Opening of the Radium Institute in
                                  London . . . . . . . . . . . . . . . . . 224--224
                      Anonymous   Atwood and his St. Louis--New York
                                  Flight . . . . . . . . . . . . . . . . . 225--225
                      Anonymous   Scientific Developments in Aerial
                                  Navigation . . . . . . . . . . . . . . . 226--226
        William Grötzinger   Suggestions for the Workshop . . . . . . 228--228
                  H. B. Chapman   Using a Reflector on a Hacksaw . . . . . 228--228
                  W. R. Inghram   Handy Man's Medicine Chest . . . . . . . 228--228
               Albert F. Bishop   The Grapnel as a Mushroom Anchor . . . . 228--228
                      Anonymous   Abstracts from Current Periodicals . . . 229--229
                      Anonymous   The New British Dreadnoughts . . . . . . 230--230
          Benjamin C. Gruenberg   The Creation of, ``Artificial Life'' . . 231--231
                      Anonymous   The Inventor's Department  . . . . . . . 232--233
                      Anonymous   The Current Supplement, Materials for
                                  Paper Money, and more  . . . . . . . . . 237--239

Scientific American
Volume 105, Number 12, September 16, 1911

                      Anonymous   Notes and Queries  . . . . . . . . . . . 266--266
              William H. Walker   How Electricity is Aiding the Chemist    243--243
                      Anonymous   The Coming International Congress of
                                  Applied Chemistry, Dr. Albrecht Kossel,
                                  and more . . . . . . . . . . . . . . . . 244--244
                     Ira Remsen   Artificial Rubber  . . . . . . . . . . . 245--245
              William P. Munger   Arrangement of Laboratory Supplies . . . 245--245
             Charles F. McKenna   Testing Before Buying  . . . . . . . . . 246--247
                Alfred J. Lotka   Catalysis  . . . . . . . . . . . . . . . 248--248
          Robert Kennedy Duncan   The Industrial Chemist . . . . . . . . . 249--249
            Edward L. Thorndike   Psychology and Advertising . . . . . . . 250--251
                   Allen Rogers   The Technically Trained Foreman  . . . . 253--253
                      Anonymous   The International Motor Boat Race of
                                  1911 . . . . . . . . . . . . . . . . . . 254--255
                      Anonymous   Curiosities of Science and Invention . . 256--256
                      Anonymous   The Inventor's Department  . . . . . . . 257--257
        William Atherton Du Puy   Inventing for the Public . . . . . . . . 257--258
                      Anonymous   An American Rotating Aviation Motor,
                                  Moving Pictures of the Coronation  . . . 264--265

Scientific American
Volume 105, Number 13, September 23, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 275--275
                      Anonymous   Inventions: Recently Patented Inventions 282--283
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 284--284
                      Anonymous   Notes and Queries  . . . . . . . . . . . 284--284
                      Anonymous   Newspaper Heroism, A Safety Throttle for
                                  Locomotives, and more  . . . . . . . . . 270--270
           William J. Humphreys   Henry Walter Nernst  . . . . . . . . . . 271--271
          Benjamin C. Gruenberg   Artificial Life  . . . . . . . . . . . . 272--272
       T. Commerford Martin and   
                Putnam A. Bates   Central Station Current for Farms  . . . 273--274
                  F. C. Coleman   A New System of Bunkering Steamships . . 274--274
                   W. R. Brooks   The Brooks Comet . . . . . . . . . . . . 274--274
                      Anonymous   Suggestions for the Workshop . . . . . . 276--276
               Albert F. Bishop   How to Make an Engine Crank  . . . . . . 276--276
                   R. P. Albert   Enlarging a Reamed Hole  . . . . . . . . 276--276
                    J. E. Noble   A Leather Cup Die, Combination Pipe and
                                  Monkey Wrench, and more  . . . . . . . . 276--276
              Nobel E. Whitford   Progress of New York's State Barge Canal 277--277
                      Anonymous   Abstracts from Current Periodicals . . . 280--280
                      Anonymous   The Inventor's Department  . . . . . . . 281--282
                      Anonymous   Two Latin-American Aviators, The Current
                                  Supplement . . . . . . . . . . . . . . . 286--287

Scientific American
Volume 105, Number 14, September 30, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 295--295
                      Anonymous   Inventions: Recently Patented Inventions 303--303
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 304--304
                      Anonymous   Notes and Queries  . . . . . . . . . . . 304--304
                      Anonymous   The Ramming of the ``Olympic'', The
                                  Radium Engine, and more  . . . . . . . . 290--290
                   Frank Shuman   Power from Sunshine  . . . . . . . . . . 291--292
                      Anonymous   The Sitter Viaduct . . . . . . . . . . . 293--293
                      Anonymous   Abstracts from Current Periodicals . . . 294--294
                      Anonymous   Oil as a Locomotive Fuel . . . . . . . . 295--295
                      Anonymous   The Tesla Steam Turbine  . . . . . . . . 296--297
                      Anonymous   Launching an Aeroplane from a Wire . . . 298--298
                  Jacques Boyer   Submarine Cables and Longitude
                                  Determination  . . . . . . . . . . . . . 298--298
                      Anonymous   Current Astronomical Events  . . . . . . 299--299
              Frederic R. Honey   The Harvest Moon . . . . . . . . . . . . 299--299
                   A. J. Jarman   The Laboratory . . . . . . . . . . . . . 300--300
                   A. L. Hodges   The Standard Black . . . . . . . . . . . 300--300
                  John D. Adams   Air Apparatus for Amateurs . . . . . . . 300--300
                      Anonymous   The Inventor's Department  . . . . . . . 301--302
                Herbert T. Wade   A Fireman's Smoke Protector  . . . . . . 302--302

Scientific American
Volume 105, Number 15, October 7, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 315--315
           Henry Norris Russell   The Heavens in October . . . . . . . . . 320--320
                      Anonymous   Inventions: Recently Patented Inventions 322--323
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 324--324
                      Anonymous   Notes and Queries  . . . . . . . . . . . 324--324
                      Anonymous   The ``Liberté'' and the ``Maine'', and
                                  more . . . . . . . . . . . . . . . . . . 310--310
                      Anonymous   The Meter  . . . . . . . . . . . . . . . 311--312
                Carl Dienstbach   The Burning of the German Military
                                  Dirigible ``M III''  . . . . . . . . . . 312--312
                      Anonymous   Carrying Mail by Aeroplane . . . . . . . 313--313
               Hayner H. Gordon   The Diesel Engine  . . . . . . . . . . . 314--315
                      Anonymous   Filling a 400,000 Cubic-foot Balloon . . 316--316
                      Anonymous   Suggestions for the Workshop . . . . . . 317--317
                       B. F. D.   Holder for Filing Small Screws . . . . . 317--317
               Albert F. Bishop   Refacing Valve Seats . . . . . . . . . . 317--317
                George F. Brown   Laying Out Work for Drilling . . . . . . 317--317
        William Grötzinger   Magnetic T-Square  . . . . . . . . . . . 317--317
                     C. M. Moon   Flywheel Brake . . . . . . . . . . . . . 317--317
                    J. W. Romig   Repairs to a Cistern . . . . . . . . . . 317--317
             Percival A. Hislam   Disposition of Guns in Dreadnoughts  . . 318--318
                      Anonymous   Abstracts from Current Periodicals . . . 319--319
                      Anonymous   The Inventor's Department  . . . . . . . 321--328

Scientific American
Volume 105, Number 16, October 14, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 352--355
                      Anonymous   Notes and Queries  . . . . . . . . . . . 358--358
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 359--359
                      Anonymous   The Failure of the Austin Dam  . . . . . 331--332
                      Anonymous   Mind and Mechanism, New York's Budget
                                  Exhibit  . . . . . . . . . . . . . . . . 332--332
                Carl Dienstbach   Wreck of the British Naval Airship
                                  ``Mayfly'' . . . . . . . . . . . . . . . 333--333
                    Cecil Peoli   How to Make a Model Aeroplane  . . . . . 334--335
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould} . . . . . . . . . . . . . . . . . 335--335
                      Anonymous   A Weather Forecasting Competition, The
                                  Mine-safety Demonstration, and more  . . 335--335
                      Anonymous   The Business Side of Aviation  . . . . . 337--337
               Marius C. Krarup   A Chamber of Horrors . . . . . . . . . . 338--339
       Grover Cleveland Loening   Progress in Aerodynamics . . . . . . . . 340--341
                      Anonymous   Abstracts from Current Periodicals . . . 342--342
                      Anonymous   Curiosities of Science and Invention . . 343--343
              J. Iernard Walker   A Landsman's Log Aboard the Battleship
                                  ``North Dakota'' --- I . . . . . . . . . 344--345
                      Anonymous   The Inventor's Department  . . . . . . . 346--361

Scientific American
Volume 105, Number 17, October 21, 1911

                      Anonymous   Inventions: Recently Patented Inventions 374--375
                      Anonymous   Notes and Queries  . . . . . . . . . . . 376--376
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 376--376
                      Anonymous   Correspondence . . . . . . . . . . . . . 379--379
                      Anonymous   Popular Science, Aircraft in the Recent
                                  German Maneuvers, and more . . . . . . . 362--362
       Thomas Commerford Martin   Frank Julian Sprague . . . . . . . . . . 363--364
                Herbert T. Wade   New York's Fire College  . . . . . . . . 364--365
              Adelbert J. Gogel   Wireless Detectors . . . . . . . . . . . 365--365
                      Anonymous   Vaniman--Seiberling Transatlantic
                                  Expedition . . . . . . . . . . . . . . . 366--367
                 S. A. Mitchell   Three Comets Now Visible . . . . . . . . 368--368
                      Anonymous   Abstracts from Current Periodicals . . . 369--369
                      Anonymous   Relative Strength of the Italian and
                                  Turkish Navies . . . . . . . . . . . . . 370--371
              Frederick E. Ward   Small Isolated Electric Power Plants . . 372--372
                      Anonymous   The Inventor's Department  . . . . . . . 373--379
                      Anonymous   The Electrical Show in the New Grand
                                  Central Palace, The Glidden Tour and the
                                  Fair-mount Park Automobile Race, and
                                  more . . . . . . . . . . . . . . . . . . 378--379

Scientific American
Volume 105, Number 18, October 28, 1911

                      Anonymous   Inventions: Recently Patented Inventions 394--395
                      Anonymous   Notes and Queries  . . . . . . . . . . . 396--396
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 396--396
                      Anonymous   Correspondence . . . . . . . . . . . . . 399--399
                      Anonymous   The Spirit of the Coliseum, The Scrap
                                  Heap, and more . . . . . . . . . . . . . 382--382
                      Anonymous   A New System of Gathering Turpentine . . 383--383
                      Anonymous   Two New Blériot Monoplanes  . . . . . . . 384--384
          André Beaumont   The Aeroplane in Naval Service . . . . . 384--384
                Putnam A. Bates   Indoor Lighting, Natural and Artificial  385--385
                      Anonymous   Curiosities of Science and Invention . . 386--387
                 Riley E. Scott   Dropping Bombs from Flying Machines  . . 388--389
             Robert G. Skerrett   The ``Hawke''--``Olympic'' Collision . . 389--389
              J. Bernard Walker   A Landsman's Log Aboard the Battle ship
                                  ``North Dakota'' --- II  . . . . . . . . 390--391
                      Anonymous   Suggestions for the Workshop . . . . . . 392--392
        William Grötzinger   A Spur Chuck for Wood Turning  . . . . . 392--392
                   F. B. Albert   Removing the Waste on the Wood Turner's
                                  Screw Chuck, Removing a Plug from Blind
                                  Holes  . . . . . . . . . . . . . . . . . 392--392
                  H. D. Chapman   Turning Scollop Hand-wheels in a Lathe   392--392
               Albert F. Bishop   Facing off an Elbow, Workshop Notes  . . 392--392
                      Anonymous   The Inventor's Department  . . . . . . . 393--394
                      Anonymous   The Current Supplement, Death of Eugene
                                  Ely, and more  . . . . . . . . . . . . . 398--398

Scientific American
Volume 105, Number 19, November 4, 1911

           Henry Norris Russell   The Heavens in November  . . . . . . . . 403--403
                      Anonymous   Inventions: Recently Patented Inventions 414--415
                      Anonymous   Notes and Queries  . . . . . . . . . . . 416--416
                      Anonymous   Books: New Books, Etc  . . . . . . . . . 416--416
                      Anonymous   Correspondence . . . . . . . . . . . . . 417--419
                      Anonymous   Greatest Naval Review in American
                                  History, Prizes for Military Aeroplanes  402--402
                      Anonymous   Photographic Scouting at Night . . . . . 404--404
       Grover Cleveland Loening   The Recent Gliding Experiments of the
                                  Wrights  . . . . . . . . . . . . . . . . 404--405
                      Anonymous   The British-built Dredger for Panama . . 405--405
                      Anonymous   Abstracts from Current Periodicals . . . 406--407
                      Anonymous   Wireless Telegraph Set for Cavalry . . . 408--408
                  F. C. Coleman   The Peking--Kalgan Railway . . . . . . . 409--411
                      Anonymous   The Laboratory . . . . . . . . . . . . . 412--412
                  J. H. Bentley   Ball Clamp for Holding a Camera  . . . . 412--412
                      Anonymous   The Inventor's Department  . . . . . . . 413--414

Scientific American
Volume 105, Number 2, July 8, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 27--27
                      Anonymous   Inventions: Recently Patented Inventions 35--36
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 36--36
                      Anonymous   The Subway Muddle, Necessity and
                                  Invention, and more  . . . . . . . . . . 22--22
                      Anonymous   George Ellery Hale . . . . . . . . . . . 23--23
                      Anonymous   How to Find your Way in the Air  . . . . 24--26
             W. Irving Chambers   Naval Aviation, Advanced Study in
                                  Electrical Engineering at the
                                  Massachusetts Institute of Technology,
                                  and more . . . . . . . . . . . . . . . . 26--27
                      Anonymous   Sailing the Seven Seas in a
                                  ``Cockleshell''  . . . . . . . . . . . . 28--28
                      Anonymous   Automobile Novelties . . . . . . . . . . 29--29
               Ralph Bergengren   Psychological Apparatus for Testing
                                  Chauffeurs . . . . . . . . . . . . . . . 29--29
                      Anonymous   Abstracts from Current Periodicals . . . 30--31
                       R. C. D.   A Good Substitute for a Drill Post . . . 32--32
                       F. C. I.   Reducing the Size of Tubing  . . . . . . 32--32
                       W. J. C.   Nail-holder for Claw-hammers . . . . . . 32--32
                  H. C. Urbaner   Centering and Reboring Engine Cylinders
                                  in a Lathe . . . . . . . . . . . . . . . 32--32
            B. Francis Dashiell   A Simple Vise  . . . . . . . . . . . . . 32--32
                   W. D. Graves   Some Oddities in Joints  . . . . . . . . 32--32
                      Anonymous   The Inventor's Department  . . . . . . . 33--34
            George Westinghouse   How I Invented the Air Brake --- IV,
                                  Notes for Inventors, and more  . . . . . 34--35
                      Anonymous   Railway Building in Asiatic Russia:
                                  Paris--Peking in Nine and a Half Days    38--38

Scientific American
Volume 105, Number 20, November 11, 1911

                      Anonymous   Inventions: Recently Patented Inventions 436--436
                      Anonymous   Notes and Queries  . . . . . . . . . . . 437--437
                      Anonymous   Correspondence . . . . . . . . . . . . . 438--439
                      Anonymous   Evolution and Geographical Distribution,
                                  The Toll of Aviation, and more . . . . . 422--422
                D. T. MacDougal   Hugo de Vries  . . . . . . . . . . . . . 423--423
                      Anonymous   Antarctic Expeditions, Past and Present  424--425
           Frederick C. Coleman   New Atlantic-type Locomotives for the
                                  Anglo--Scottish Expresses  . . . . . . . 425--425
                      Anonymous   Abstracts from Current Periodicals . . . 426--426
                      Anonymous   Results of the Glidden Tour  . . . . . . 427--427
       Grover Cleveland Loening   New Development in Aeroplane
                                  Construction . . . . . . . . . . . . . . 428--429
                      Anonymous   Preparations for Launching the ``Akron''
                                  for its Trial Trip . . . . . . . . . . . 429--429
              J. Bernard Walker   A Landsman's Log Aboard the Battleship
                                  ``North Dakota'' --- III . . . . . . . . 430--431
             Percival A. Hislam   The Battleship ``Orion'  . . . . . . . . 431--431
              S. Leonard Bastin   Simple Tests for Food Purity . . . . . . 432--432
                      Anonymous   Suggestions for the Workshop . . . . . . 433--433
                  H. D. Chapman   Ball-turning Device  . . . . . . . . . . 433--433
                    G. H. Ander   Screw-driver Wrench and Tap Wrench . . . 433--433
                 Philip Edelman   A Needle Drill . . . . . . . . . . . . . 433--433
                      Anonymous   The Inventor's Department  . . . . . . . 434--435

Scientific American
Volume 105, Number 21, November 18, 1911

                      Anonymous   Inventions: Recently Patented Inventions 460--463
                      Anonymous   Correspondence . . . . . . . . . . . . . 468--468
             J. Mayne Baltimore   The ``Sky-Line Drive'' . . . . . . . . . 443--444
                      Anonymous   The Navy and the Inventor, Patent
                                  Property. What it Is. Its Protection,
                                  and more . . . . . . . . . . . . . . . . 444--444
                      Anonymous   Edison's Impressions of European
                                  Industries . . . . . . . . . . . . . . . 445--445
                Melville Church   Needed Reforms in Patent Procedure . . . 446--446
                      Anonymous   The French Competition for Military
                                  Aeroplanes . . . . . . . . . . . . . . . 447--447
                      Anonymous   The Industrial Corporation and the
                                  Inventor . . . . . . . . . . . . . . . . 448--449
                      Anonymous   The First Trans-continental Aeroplane
                                  Flight . . . . . . . . . . . . . . . . . 449--449
        William Atherton Du Puy   Big Fortunes in Little Inventions  . . . 450--450
           T. Commerford Martin   Edison's Pioneer Electric Railway Work   451--451
                      Anonymous   Perpetual Motion . . . . . . . . . . . . 452--453
                      Anonymous   Spike Driving by Motor Truck . . . . . . 454--454
                      Anonymous   Welding a Fourteen-inch Shaft by the
                                  Thermite Process . . . . . . . . . . . . 455--455
                      Anonymous   Curiosities of Science and Invention . . 456--456
          Laurence J. Gallagher   The Funny Side of Invention  . . . . . . 457--458
                      Anonymous   Award of the Nobel Prize to Madame Curie 467--467

Scientific American
Volume 105, Number 22, November 25, 1911

                      Anonymous   Inventions: Recently Patented Inventions 481--482
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 482--482
                      Anonymous   Notes and Queries  . . . . . . . . . . . 482--482
                      Anonymous   Correspondence . . . . . . . . . . . . . 483--488
                      Anonymous   A Fatal Omission, ``The Last Word'', and
                                  more . . . . . . . . . . . . . . . . . . 470--470
                      Anonymous   Marie Sk\lodowska Curie  . . . . . . . . 471--471
                Carl Dienstbaeh   Zeppelin's Schwaben  . . . . . . . . . . 472--472
                      Anonymous   Pumping Gold Bullion from the Sea  . . . 473--473
                  Percy Collins   Garden Railways  . . . . . . . . . . . . 473--475
                      Anonymous   Abstracts from Current Periodicals . . . 476--476
             C. Fitzhugh Talman   Weather ``Kiosks'' at Home and Abroad    477--477
              J. Bernard Walker   A Landsman's Log Aboard the Battleship
                                  ``North Dakota'' --- IV  . . . . . . . . 478--479
              Dugald C. Jackson   The Demand for Young Men in Electrical
                                  Engineering  . . . . . . . . . . . . . . 479--479
              Alfred Gradenwitz   The Inventor's Department  . . . . . . . 480--488

Scientific American
Volume 105, Number 23, December 2, 1911

           Henry Norris Russell   The Heavens in December, 1911  . . . . . 500--500
                      Anonymous   Inventions: Recently Patented Inventions 502--503
                      Anonymous   Notes and Queries  . . . . . . . . . . . 504--505
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 505--505
                      Anonymous   Correspondence . . . . . . . . . . . . . 507--507
                      Anonymous   Our Trade With South America, The Quebec
                                  Bridge Competition, and more . . . . . . 490--490
                      Anonymous   Hudson Maxim . . . . . . . . . . . . . . 491--491
                      Anonymous   The Hydro-aeroplane  . . . . . . . . . . 492--492
                      Anonymous   The Power of the Human Jaw . . . . . . . 493--493
                      Anonymous   The Manufacture of Yeast . . . . . . . . 494--494
                   Mary Proctor   The Latest Photograph of the Planet Mars 495--495
                      Anonymous   Abstracts from Current Periodicals . . . 496--496
              William J. Horner   Suggestions for the Workshop . . . . . . 497--497
               Albert F. Bishop   Turning Duplicate Forms  . . . . . . . . 497--497
                    A. F. Clark   Bending a Brass Tube . . . . . . . . . . 497--497
                  H. M. Nichols   Knife Made from a Hacksaw Blade  . . . . 497--497
              Charles L. Wright   The First National Mine-Safety
                                  Demonstration  . . . . . . . . . . . . . 498--499
                      Anonymous   The Inventor's Department  . . . . . . . 501--502

Scientific American
Volume 105, Number 24, December 9, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 539--540
                      Anonymous   Notes and Queries  . . . . . . . . . . . 541--543
                      Anonymous   The Importance of the Command of the
                                  Sea, For an Adequate Navy, and more  . . 512--512
                   G.v.L. Meyer   The Business Management of the Navy  . . 513--513
Rear-Admiral Richard Wainwright   The Fleet and its Readiness for Service  514--515
                     R. M. Watt   Influence of the United States on the
                                  World's Battleship Designs . . . . . . . 516--517
                     H. I. Cone   Propelling Machinery for Naval Vessels   518--519
                  N. C. Twining   Recent Development in Ordnance . . . . . 520--521
                    T. M. Potts   Rank of the United States Among the
                                  Naval Powers . . . . . . . . . . . . . . 522--523
                 Albert Gleaves   On Board a Battleship  . . . . . . . . . 524--525
                Leigh C. Palmer   Target practice  . . . . . . . . . . . . 526--527
              J. Bernard Walker   A Landsman's Log Aboard the Battleship
                                  ``North Dakota'' --- V . . . . . . . . . 528--529
                  D. C. Bingham   The Modern Submarine . . . . . . . . . . 530--531
                      Anonymous   Huge Icebergs of the Southern Ocean  . . 544--545
              ?. Guglielminetti   Recent Views on Road-Tarring . . . . . . 545--547
                      Anonymous   The Crusade Against the House Fly  . . . 547--547

Scientific American
Volume 105, Number 25, December 16, 1911

                      Anonymous   Inventions: Notes for Inventors  . . . . 562--562
                      Anonymous   Notes and Queries  . . . . . . . . . . . 563--563
                      Anonymous   Correspondence . . . . . . . . . . . . . 564--565
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 567--567
                      Anonymous   ``Made in Germany'', Physical Tests for
                                  Aviators, and more . . . . . . . . . . . 550--550
                      Anonymous   Self-dumping and Automatic Baling Scow   551--551
                      Anonymous   The Strength of an Aeroplane . . . . . . 552--552
                      Anonymous   Curiosities of Science and Invention . . 553--553
                      Anonymous   Abstracts from Current Periodicals . . . 554--554
                  F. C. Coleman   Novel Transportation Bridge in Great
                                  Britain  . . . . . . . . . . . . . . . . 556--557
                      Anonymous   The Most Powerful European Express
                                  Engine . . . . . . . . . . . . . . . . . 557--557
              Herbert T. Walker   Some Locomotive Curiosities  . . . . . . 558--559
                   A. J. Jarman   The Laboratory . . . . . . . . . . . . . 560--560
                 James H. Doran   Preparation of Small Quantities of
                                  Impure Radium Bromide  . . . . . . . . . 560--560
            Claude C. Kiplinger   A Simple Micrometer  . . . . . . . . . . 560--560
                      Anonymous   The Inventor's Department  . . . . . . . 561--562

Scientific American
Volume 105, Number 26, December 23, 1911

                      Anonymous   Inventions: Recently Patented Inventions 582--583
                      Anonymous   Correspondence . . . . . . . . . . . . . 584--585
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 586--586
                      Anonymous   Notes and Queries  . . . . . . . . . . . 587--587
                      Anonymous   Navy Yard Politics, A Ray of Light in
                                  the Darkest Province of Chemistry, and
                                  more . . . . . . . . . . . . . . . . . . 570--570
                    P. Phillips   Sir Joseph John Thomson, the Great
                                  English Physicist  . . . . . . . . . . . 571--571
                 S. A. Mitchell   The Motions of Mars and Saturn . . . . . 572--572
             C. Van Langendonck   Powerful Electromagnet for the Use of
                                  Oculists . . . . . . . . . . . . . . . . 573--573
                      Anonymous   Frost Fairs on the Thames, Meeting of
                                  the American Association, and more . . . 573--573
                      Anonymous   Abstracts from Current Periodicals . . . 574--575
                H. W. Ambruster   Artificial Silk --- a Textile Marvel . . 576--577
                      Anonymous   The World's Oldest Liqueur Distillery    577--577
                      Anonymous   Destruction of the ``Maine'' by a Low
                                  explosive Mine and her Own Magazines . . 578--579
                  H. D. Chapman   Suggestions for the Workshop . . . . . . 580--580
                   Grover McKee   Trepanning Drill . . . . . . . . . . . . 580--580
                  Homer Cloukey   A Pocket Hitch . . . . . . . . . . . . . 580--580
                    G. H. Ander   Novel Lock Nut . . . . . . . . . . . . . 580--580
                  H. D. Chapman   Two Novel Reamers  . . . . . . . . . . . 580--580
             William Grotzinger   Rotary Marking Gage  . . . . . . . . . . 580--580
               Frank C. Perkins   The Inventor's Department  . . . . . . . 581--588

Scientific American
Volume 105, Number 27, December 30, 1911

           Henry Norris Russell   The Heavens in January . . . . . . . . . 596--596
                      Anonymous   Inventions: Recently Patented Inventions 601--601
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 605--606
                      Anonymous   A Warning, Retrospect of the Year 1911
                                  Civil Engineering, and more  . . . . . . 590--591
                 J. H. Crabtree   The Methods of Dust Extraction on
                                  Cotton-carding Engines . . . . . . . . . 592--593
                  M. H. Talbott   New Tide-predicting Machine  . . . . . . 593--593
                Marcus Benjamin   Charles Edwin Bessey . . . . . . . . . . 594--594
            Waldemar Kaempffert   A Laboratory for Manufacturers . . . . . 595--595
                      Anonymous   Progress of Work on the Panama Canal . . 597--599
                      Anonymous   The Inventor's Department  . . . . . . . 600--600
                      Anonymous   A Dark Substance in Space  . . . . . . . 602--602
                      Anonymous   Settling Patent Infringement Suits, An
                                  American Appeals for Scientific Help . . 602--602
                      Anonymous   Telephones in Great Britain, A Fiber
                                  Exposition in Java . . . . . . . . . . . 607--607

Scientific American
Volume 105, Number 4, July 22, 1911

                      Anonymous   Notes and Queries  . . . . . . . . . . . 88--92
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 89--89
                      Anonymous   An Imminent Railroad Danger, Causes of
                                  Aviation Accidents, and more . . . . . . 74--74
                      Anonymous   The Winning of the International
                                  Aviation Trophy  . . . . . . . . . . . . 75--75
                  G. D. Emerson   The Beacon Hill Tunnel . . . . . . . . . 76--76
                 H. D. Brandyce   A Comparison of the German and American
                                  Navies . . . . . . . . . . . . . . . . . 77--78
          Benjamin C. Gruenberg   Henry Fairfield Osborn . . . . . . . . . 79--79
                      Anonymous   The Latest of the Big Railway Terminals  80--80
                    William Day   Heart Diagnosis by Electricity . . . . . 81--81
                      Anonymous   Abstracts from Current Periodicals . . . 82--84
             William Grotzinger   A Simple Turnbuckle  . . . . . . . . . . 84--84
                     W. A. Lane   Adz-tightener  . . . . . . . . . . . . . 84--84
                          C. G.   Turning Ball Joints to Gage  . . . . . . 84--84
                 Henry H. Riggs   An Improvised Bobbin Winder  . . . . . . 84--84
               Albert F. Bishop   Home-made Anchors  . . . . . . . . . . . 84--84
                   W. D. Graves   Making a Wooden Tube . . . . . . . . . . 84--84
                      Anonymous   The Inventor's Department  . . . . . . . 85--88

Scientific American
Volume 105, Number 5, July 29, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 99--99
           Henry Norris Russell   The Heavens in August  . . . . . . . . . 104--104
                      Anonymous   Inventions: Recently Patented Inventions 106--107
                      Anonymous   Notes and Queries  . . . . . . . . . . . 108--108
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 108--108
                      Anonymous   Good Roads that are Permanent, Sound in
                                  the Universe, and more . . . . . . . . . 94--94
        William Atherton Du Puy   The Guardian of Ninety Million Stomachs  95--95
                      Anonymous   The Battleship ``Utah''  . . . . . . . . 96--96
                      Anonymous   A Sun-dial as an Accurate Time-piece . . 97--97
                      Anonymous   Casting Cement Building Walls on the
                                  Ground . . . . . . . . . . . . . . . . . 97--99
                      Anonymous   Abstracts from Current Periodicals . . . 100--101
            Paul Griswold Howes   The Original Paper Makers  . . . . . . . 102--102
                C. C. Kiplinger   Simple Electric Furnace  . . . . . . . . 103--103
                Gustave Michaud   An Experiment with Aluminium Powder  . . 103--103
                   A. J. Jarman   Making Oxygen in Moderate Quantities . . 103--103
                      Anonymous   The Inventor's Department  . . . . . . . 105--105
                  Hugh Chalmers   1912 Prospects for Automobile Industry   109--111

Scientific American
Volume 105, Number 6, August 5, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 119--119
                      Anonymous   Inventions: The Inventor's Department    125--125
                      Anonymous   Recently Patented Inventions . . . . . . 126--127
                      Anonymous   Notes and Queries  . . . . . . . . . . . 128--128
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 128--128
                      Anonymous   The Coroner on the Bridgeport Railroad
                                  Wreck, Solving Labor Questions in the
                                  Laboratory, and more . . . . . . . . . . 114--114
                      Anonymous   Eighty Years of Locomotive Practice in
                                  England  . . . . . . . . . . . . . . . . 115--115
                      Anonymous   The ``Electric Arc'' . . . . . . . . . . 116--116
              Earle L. Ovington   The Aviation Motor . . . . . . . . . . . 117--119
                      Anonymous   Abstracts from Current Periodicals . . . 120--122
                Ruel W. Roberts   Astronomical Notes for Amateurs for
                                  August . . . . . . . . . . . . . . . . . 122--122
           Genevieve Grandcourt   The New Era of Blood-transfusion . . . . 123--123
                    G. H. Ander   Drilling an Awkward Piece, How to Make a
                                  Ratchet-drill  . . . . . . . . . . . . . 124--124
                  John D. Adams   Drafting Room Kinks  . . . . . . . . . . 124--124
                  H. D. Chapman   Floating Reamer for Lathe  . . . . . . . 124--124
                       R. C. D.   A Novel Method for Attaching Veneer  . . 124--124
                      Anonymous   The Current Supplement, The Split-log
                                  Drag in Road-making, and more  . . . . . 129--131

Scientific American
Volume 105, Number 7, August 12, 1911

                      Anonymous   Notes and Queries  . . . . . . . . . . . 158--160
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 159--160
                Gifford Pinchot   The Conservation of the Forests  . . . . 135--137
               Joseph A. Holmes   The Use and the Waste of Our Coal Supply 138--139
                 Harry W. Perry   The Versatile Motor Truck  . . . . . . . 140--141
                  David T. XXXX   Conservation of Oil and Natural Gas  . . 142--143
                   F. H. Newell   Reclamation and Home-making  . . . . . . 144--145
                    A. P. Davis   II. --- The Engineering Work of the
                                  Reclamation Service  . . . . . . . . . . 146--148
                      Anonymous   III. --- Summary of the Reclamation
                                  Projects . . . . . . . . . . . . . . . . 148--148
                  Hugh M. Smith   The Conservation of Fishery Resources    149--151
                William N. Taft   The Inventor's Department  . . . . . . . 152--157
                    Robert Grau   The ``Talking'' Picture and the Drama    155--157
                      Anonymous   Brooks Comet of 1911, Motor Omnibuses in
                                  War, and more  . . . . . . . . . . . . . 157--157

Scientific American
Volume 105, Number 8, August 19, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 167--167
                      Anonymous   Inventions: Recently Patented Inventions 174--175
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 175--175
                      Anonymous   Notes and Queries  . . . . . . . . . . . 178--178
                      Anonymous   The New Aerotechnical Institute in
                                  Paris, A New Relic of the Parthenon
                                  Gables . . . . . . . . . . . . . . . . . 162--162
             C. Fitzhugh Talman   William Napier Shaw, F.R.S.  . . . . . . 163--163
                      Anonymous   Integral Photography . . . . . . . . . . 164--164
                      Anonymous   Water in Motion  . . . . . . . . . . . . 165--166
                 F. G. Sterling   The Knight Valveless Engine  . . . . . . 168--168
                      Anonymous   Abstracts from Current Periodicals . . . 169--169
       Grover Cleveland Loening   Lessons of the 1911 International Cup
                                  Race . . . . . . . . . . . . . . . . . . 170--170
              Frederic R. Honey   The Satellites of Uranus . . . . . . . . 171--171
                   A. J. Jarman   Etching Metals by Electricity  . . . . . 172--172
                      Anonymous   The Inventor's Department  . . . . . . . 173--180
                      Anonymous   The Current Supplement, Cuttlefish
                                  Farms, and more  . . . . . . . . . . . . 178--179

Scientific American
Volume 105, Number 9, August 26, 1911

                      Anonymous   Correspondence . . . . . . . . . . . . . 187--187
                      Anonymous   Inventions: Recently Patented Inventions 194--195
                      Anonymous   Notes and Queries  . . . . . . . . . . . 195--195
                      Anonymous   Aeroplane Touring vs. Exhibition Flying,
                                  Artificial Frogs, and more . . . . . . . 182--182
                     Ira Remsen   The United States Referee Board  . . . . 183--183
       T. Commerford Martin and   
                Putnam A. Bates   Convert Abandoned Mills into Electric
                                  Power Plants . . . . . . . . . . . . . . 184--184
                Carl Dienstbach   A Study of the Giant Airship of the
                                  Future . . . . . . . . . . . . . . . . . 185--186
                      Anonymous   Abstracts from Current Periodicals . . . 188--188
                     A. F. Zahm   Stress in Aeroplanes in Curvilinear and
                                  Fancy Flight . . . . . . . . . . . . . . 189--189
                Alfred J. Lotka   Magic Effects on the Stage and Off . . . 190--191
               Albert F. Bishop   Methods of Driving and Pulling Stakes    191--191
               Paul H. Woodruff   Locating a Break in an Electric Flatiron
                                  Cord . . . . . . . . . . . . . . . . . . 191--191
                      Anonymous   The Inventor's Department  . . . . . . . 192--192
                      Anonymous   The Need for a New Patent Office . . . . 192--194
                      Anonymous   A Forest Service Circular on
                                  ``Chaparral'' The Current Supplement . . 197--198


Scientific American
Volume 106, Number 1, January 6, 1912

                      Anonymous   Notes and Queries  . . . . . . . . . . . 39--39
                 Harry W. Perry   The Selection of a Motor Truck . . . . . 5--6
                   S. W. Harvey   The Riding Qualities of a Car  . . . . . 7--7
                   H. P. Wilkin   Making the Starting Crank Obsolete . . . 8--10
                      Anonymous   A Fertile Field for Inventors  . . . . . 10--11
  Theodore M. Raulein von Keler   Gasoline in War  . . . . . . . . . . . . 12--13
                Lawrence La Rue   The Pleasure Boat's Debt to the Racer    14--17
                  H. S. Whiting   Driving the Car at Night . . . . . . . . 18--18
                 J. J. O'Connor   The Motorcycle of 1912 . . . . . . . . . 19--21
                      Anonymous   Motor Truck Cost Charts  . . . . . . . . 22--23
                 Harry S. Houpt   Making Chauffeurs of Teamsters . . . . . 24--24
                 Harry W. Perry   Light and Heavy Car Costs Compared . . . 24--25
                      Anonymous   Will Rubber Tires be Supplanted? . . . . 26--26
                      Anonymous   The Current Supplement . . . . . . . . . 36--36

Scientific American
Volume 106, Number 10, March 9, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 215--215
                      Anonymous   Inventions: Recently Patented Inventions 221--221
                      Anonymous   Notes and Queries  . . . . . . . . . . . 222--222
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 223--224
                      Anonymous   The ``Human Interest'' at Panama,
                                  Merchant Marine a National Issue, and
                                  more . . . . . . . . . . . . . . . . . . 210--211
                      Anonymous   Our Latest Battleships, the ``Nevada''
                                  and ``Oklahoma'' . . . . . . . . . . . . 212--212
               Warren H. Miller   An Important Development of the Steam
                                  Engine . . . . . . . . . . . . . . . . . 213--214
                   E. L. Du Puy   Four-dimensional Space . . . . . . . . . 214--215
                      Anonymous   A Mechanical Violin Player . . . . . . . 216--217
               Walter G. Holmes   Interlined Printing for the Blind  . . . 217--217
                 S. A. Mitchell   The Turret Telescope . . . . . . . . . . 218--218
                      Anonymous   Curiosities of Science and Invention . . 219--219
                      Anonymous   What Inventors are Doing . . . . . . . . 220--221
               Franklin O. King   Hoarding up Happiness  . . . . . . . . . 226--226
                      Anonymous   Confusion of Names of Commercial Woods,
                                  One of the ``Ten Stories'', and more . . 226--227

Scientific American
Volume 106, Number 11, March 16, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 239--239
                      Anonymous   Inventions: Recently Patented Inventions 246--253
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 253--253
                      Anonymous   The Discovery of the South Pole, Object
                                  Lessons in Road Building, and more . . . 232--233
                  Rex Beresford   Building Good Roads by Auto Power  . . . 234--234
                      Anonymous   A Test of Mud-guards . . . . . . . . . . 235--235
              Logan Waller Page   Good Roads and How to Build Them . . . . 236--238
                H. J. Shepstone   The Scientific Aspects of Bell-Making    238--238
                      Anonymous   What the States of the Union are Doing
                                  for Good Roads . . . . . . . . . . . . . 240--240
                      Anonymous   The Chestnut Tree Blight . . . . . . . . 241--242
                      Anonymous   ``Blowing'' and ``Sucking'' Wells  . . . 242--242
                      Anonymous   Brucker's Trans-Atlantic Airship
                                  Expedition Getting Ready . . . . . . . . 243--243
                Coleman du Pont   The Coleman du Pont Highway Through the
                                  State of Delaware  . . . . . . . . . . . 244--245
                      Anonymous   One of the ``Ten Stories'' . . . . . . . 256--258
                    Algot Lange   The Use and Preparation of the Brazilian
                                  Wourahli Poison, Peroxide of Hydrogen
                                  Made by Sunlight, and more . . . . . . . 258--260

Scientific American
Volume 106, Number 12, March 23, 1912

                      Anonymous   Inventions: Recently Patented Inventions 274--274
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 279--279
                      Anonymous   Notes and Queries  . . . . . . . . . . . 279--279
                      Anonymous   The Rotary Mimeograph Case, What
                                  Martians Look Like, and more . . . . . . 262--263
                  F. C. Coleman   The Motor Liner ``Selandia'' . . . . . . 264--264
              G. W. Littlehales   Amundsen's Attainment of the South Pole  265--265
          Robert A. Morton, Jr.   Curbing the Wireless Meddlér  . . . . . . 266--266
              Frederic R. Honey   Morning and Evening Stars for 1912 . . . 267--267
             C. Van Langendonck   St. Petersburg's Water Sterilizing Plant 268--268
                      Anonymous   Thawing a Six-inch Water Main  . . . . . 269--269
                   C. H. Claudy   Suggestions for the Workshop . . . . . . 270--270
               Albert F. Bishop   Converting a Planer into a Milling
                                  Machine  . . . . . . . . . . . . . . . . 270--270
                  H. D. Chapman   Making Small Grinding Wheels . . . . . . 270--270
                      Anonymous   Curiosities of Science and Invention . . 271--271
                      Anonymous   What Inventors are Doing . . . . . . . . 272--272
                      Anonymous   Moving Pictures at Home, The Acetylene
                                  Fog Horn, and more . . . . . . . . . . . 272--274

Scientific American
Volume 106, Number 13, March 30, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 287--287
           Henry Norris Russell   The Heavens in April . . . . . . . . . . 290--290
                      Anonymous   Inventions: Recently Patented Inventions 293--294
                      Anonymous   Notes and Queries  . . . . . . . . . . . 295--296
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 296--296
                      Anonymous   Regulating Wireless Telegraphy, Dr.
                                  Wiley's Resignation, and more  . . . . . 282--283
                      Anonymous   How Detective Burns Listened to
                                  Dynamiter Plots  . . . . . . . . . . . . 284--284
              Alfred Gradenwitz   Piercing the Jungfrau Tunnel . . . . . . 285--285
            John W. N. Sullivan   The New Notions of Matter  . . . . . . . 286--286
                      Anonymous   The Last of the ``Maine''  . . . . . . . 288--288
              John Ritchie, Jr.   A Princely Gift for Technical Education  289--289
            Claude C. Kiplinger   The Laboratory . . . . . . . . . . . . . 291--291
                   R. H. Crowyn   An Electric Furnace  . . . . . . . . . . 291--291
                      Anonymous   What Inventors are Doing . . . . . . . . 292--292
        William Atherton Du Puy   A Professional Inventor  . . . . . . . . 292--295
                      Anonymous   The World's Fleets --- Enormous
                                  Increases, Requirements for Military
                                  Aeroplanes and Aviators, and more  . . . 296--299

Scientific American
Volume 106, Number 14, April 6, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 307--308
                      Anonymous   Inventions: Recently Patented Inventions 313--313
                      Anonymous   A Senseless Forest Bill, ``Doping''
                                  Athletes with Oxygen, and more . . . . . 302--303
                Herbert T. Wade   Saving . . . . . . . . . . . . . . . . . 304--304
             C. Fitzhugh Talman   Little-known Rainbows  . . . . . . . . . 305--306
               James G. McCurdy   Perils of the Deck-load  . . . . . . . . 308--308
                   C. H. Claudy   Photographic Distortion  . . . . . . . . 309--309
                      Anonymous   The Brahmaputra Expedition, Night Storm
                                  Signals in Germany . . . . . . . . . . . 309--309
          Benjamin C. Gruenberg   Improving on Darwin  . . . . . . . . . . 310--310
                      Anonymous   Curiosities of Science and Invention . . 311--311
                     L. J. Lesh   What Inventors are Doing . . . . . . . . 312--313
           Franklin DeR. Furman   II --- Shall My Boy Become an Engineer?  314--316
                      Anonymous   Growing Easter Lilies to Order . . . . . 319--319

Scientific American
Volume 106, Number 15, April 13, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 329--329
                      Anonymous   Notes and Queries  . . . . . . . . . . . 351--351
                  Jacques Boyer   Broiling Seven Hundred Steaks in Six
                                  Minutes  . . . . . . . . . . . . . . . . 323--323
                      Anonymous   The Church, Eugenics, and Immigration,
                                  Capt. Scott at the South Pole, and more  324--325
            Benjamin R. Andrews   The School of Household Arts of Columbia
                                  University . . . . . . . . . . . . . . . 326--327
              Frank B. Gilbreth   Motion Study in the Household  . . . . . 328--328
                  Mary Pattison   Domestic Engineering . . . . . . . . . . 330--331
      Jacolyn Van Vliet Manning   The Private Sewage Disposal Plant  . . . 332--332
                      Anonymous   Life Without Bacteria  . . . . . . . . . 333--333
                  John B. Huber   Arrhenius and His Electrified Children   334--334
             C. Fitzhugh Talman   The Real Fata Morgana  . . . . . . . . . 335--335
                      Anonymous   Curiosities of Science and Invention . . 336--336
                      Anonymous   Suggestions for the Workshop . . . . . . 337--337
                   C. H. Claudy   The Use and Misuse of Tools --- II,
                                  Workshop Notes . . . . . . . . . . . . . 337--337
                   C. H. Claudy   What Inventors are Doing . . . . . . . . 338--341
                      Anonymous   Rules Governing the Competition for the
                                  \$15,000 Prize Offered by {Mr. Edwin
                                  Gould}, The {Cleland Davis} Aerial Gun,
                                  and more . . . . . . . . . . . . . . . . 349--350

Scientific American
Volume 106, Number 16, April 20, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 359--359
                      Anonymous   Inventions: Recently Patented Inventions 366--367
                      Anonymous   Notes and Queries  . . . . . . . . . . . 368--368
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 368--368
                      Anonymous   Personal Impressions of the Panama
                                  Canal, Cement Troubles in the New Tubes,
                                  and more . . . . . . . . . . . . . . . . 354--355
                      Anonymous   Fatal Accident to Calbraith P. Rodgers,
                                  The First Hydo-Aeroplane Meeting at
                                  Monaco . . . . . . . . . . . . . . . . . 356--356
                  Rudolf Diesel   The Diesel Oil-engine and its Industrial
                                  Importance . . . . . . . . . . . . . . . 357--358
             Robert G. Skerrett   The Safety of Smokeless Powders  . . . . 358--358
        Leonard Keene Hirshberg   The New Element ``Niton''  . . . . . . . 358--358
                  Dudley Harmon   Girdling the Globe by Wireless . . . . . 360--360
                      Anonymous   The Automobile Sanitary Apparatus of
                                  Paris  . . . . . . . . . . . . . . . . . 361--361
              J. Bernard Walker   Panama --- Personal Impressions of the
                                  Work on the Canal --- I Controlling the
                                  Chargres River by the Gatun Dam and
                                  Spillway . . . . . . . . . . . . . . . . 362--363
                      Anonymous   What Inventors are Doing . . . . . . . . 364--365
                      Anonymous   Steinmetz May Smoke, A Wireless Tuning
                                  Station  . . . . . . . . . . . . . . . . 370--371

Scientific American
Volume 106, Number 17, April 27, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 379--379
                      Anonymous   Inventions: Recently Patented Inventions 385--385
                      Anonymous   Notes and Queries  . . . . . . . . . . . 390--390
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 391--391
                      Anonymous   Light Out of a Dark Tragedy, Lessons of
                                  the ``Titanic'' Disaster, and more . . . 374--375
               Andrew H. Palmer   The Late Abbott Lawrence Rotch . . . . . 376--376
                      Anonymous   What we Know About Icebergs  . . . . . . 377--378
                      Anonymous   Wreck of the White Star Liner
                                  ``Titanic''  . . . . . . . . . . . . . . 380--381
                      Anonymous   A New Phonograph . . . . . . . . . . . . 382--382
                C. C. Kiplinger   The Laboratory . . . . . . . . . . . . . 383--383
              Frederick E. Ward   A Bell-ringing Transformer . . . . . . . 383--383
                    Guy Hubbard   What Inventors are Doing . . . . . . . . 384--385
                      Anonymous   A Substitute for Pencil Cedar, Blood as
                                  a Weapon of Defense, and more  . . . . . 386--387

Scientific American
Volume 106, Number 18, May 4, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 399--399
           Henry Norris Russell   The Heavens in May . . . . . . . . . . . 402--402
                      Anonymous   Inventions: Recently Patented Inventions 405--406
                      Anonymous   Books: New Books, Etc  . . . . . . . . . 410--410
                      Anonymous   Notes and Queries  . . . . . . . . . . . 411--411
                      Anonymous   The Patent Bills, The Senate
                                  Investigation, and more  . . . . . . . . 394--395
                  Jacques Boyer   Destroying 300 Millions in Paper Money   396--396
                      Anonymous   A Flying Machine that Folds its Wings    397--397
             Stanley Yale Beach   Design of Racing Aeroplanes  . . . . . . 398--398
                      Anonymous   The Ingenuity of the Toy-maker . . . . . 400--401
                      Anonymous   Curiosities of Science and Invention . . 403--403
                      Anonymous   What Inventors are Doing . . . . . . . . 404--405
              John Ritchie, Jr.   III. --- Shall My Boy Become an
                                  Electrical Engineer? . . . . . . . . . . 408--409

Scientific American
Volume 106, Number 2, January 13, 1912

                      Anonymous   Inventions New and Interesting: The
                                  Inventor's Department  . . . . . . . . . 52--53
                      Anonymous   Inventions: Recently Patented Inventions 53--55
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 55--55
                      Anonymous   Notes and Queries  . . . . . . . . . . . 55--56
                      Anonymous   Correspondence . . . . . . . . . . . . . 56--58
                      Anonymous   ``Holes in the Air'', A Government
                                  Laboratory for Manufacturers . . . . . . 42--42
       Thomas Commerford Martin   Francis Bacon Crocker  . . . . . . . . . 43--43
               Ralph C. Davison   The ``Cement Gun'' . . . . . . . . . . . 44--45
              Edmund Otis Hovey   The Geological Society of America  . . . 46--46
                      Anonymous   An Appreciation from Connecticut,
                                  Preserve Your Papers; They are of
                                  Permanent Value, and more  . . . . . . . 46--47
               Day Allen Willey   Watching for and Preventing Forest Fires 48--48
                      Anonymous   Two Novel French Aeroplanes  . . . . . . 49--49
                      Anonymous   The Gas-driven Vessel ``Holzapfel I''    50--50
                      Anonymous   Our Attitude Toward Pioneer Work in
                                  Science  . . . . . . . . . . . . . . . . 50--50
                      Anonymous   Curiosities of Science and Invention . . 51--51
                      Anonymous   The Highest Balloon Ascent and Other
                                  Achievements of the Weather Bureau, Ten
                                  Thousand Dollars in Prizes for
                                  Inventions, and more . . . . . . . . . . 58--59

Scientific American
Volume 106, Number 20, May 18, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 447--447
                      Anonymous   Inventions: Recently Patented Inventions 451--451
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 465--467
                      Anonymous   Increase the Coast Artillery, Safety at
                                  Sea, and more  . . . . . . . . . . . . . 436--437
                      Anonymous   Coast-Defenses of the United States  . . 438--439
                      Anonymous   Guns of the Coast-Defense  . . . . . . . 440--441
                      Anonymous   Gun Versus Armor . . . . . . . . . . . . 442--443
                      Anonymous   Coast-Defense by Submarine Mines . . . . 444--444
                      Anonymous   The New Eiffel Aerodynamic Laboratory at
                                  Auteuil  . . . . . . . . . . . . . . . . 445--446
                      Anonymous   The Automobile as a Portable Source of
                                  Power  . . . . . . . . . . . . . . . . . 448--448
                      Anonymous   Wireless Weather Reports from the
                                  Atlantic . . . . . . . . . . . . . . . . 448--448
                      Anonymous   What Inventors are Doing . . . . . . . . 450--450
              Alfred Gradenwitz   A New Safe that Resists the Blowpipe . . 450--450
                Robert Grimshaw   Electrical Removal of Oil from Water . . 450--452
                   G. H. Powell   Military Inventions  . . . . . . . . . . 452--452
             C. Francis Jenkins   The Little Thing that Makes Inventions
                                  Big  . . . . . . . . . . . . . . . . . . 452--464
                      Anonymous   Notes for Inventors  . . . . . . . . . . 455--455
                      Anonymous   Permanent Life of Tissue Outside its
                                  Organism, Unusual Occupations, and more  461--464
                     H. M. Varn   How to Lay Off a Square Acre . . . . . . 464--464

Scientific American
Volume 106, Number 21, May 25, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 475--475
                      Anonymous   Inventions: Recently Patented Inventions 481--482
                      Anonymous   Notes and Queries  . . . . . . . . . . . 487--487
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 487--487
                      Anonymous   ``A Stitch in Time ---'', A Woman
                                  Pioneer in Education, and more . . . . . 470--471
             Stanley Yale Beach   The New York Aero Show . . . . . . . . . 472--472
                      Anonymous   Opening of the Naval Drydock, New York   473--475
                 Burt A. Heinly   An Aqueduct Two Hundred and Forty Miles
                                  Long . . . . . . . . . . . . . . . . . . 476--476
                      Anonymous   Taking Moving Pictures Upon Glass Plates 477--477
                      Anonymous   Briquetting Iron and Metallic Waste,
                                  Diamonds from Illuminating Gas . . . . . 477--478
              Alfred Gradenwitz   An Apparatus for Weighing Liquids in
                                  Tanks, Immunity Against Poisons  . . . . 478--478
                      Anonymous   Curiosities of Science and Invention . . 479--479
                      Anonymous   What Inventors are Doing . . . . . . . . 480--481
                      Anonymous   An Opinion of the \booktitleScientific
                                  American, Rules Governing the
                                  Competition for the by Mr. Edwin Gould   485--486

Scientific American
Volume 106, Number 22, June 1, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 495--495
           Henry Norris Russell   The Heavens in June  . . . . . . . . . . 498--498
                      Anonymous   Inventions: Recently Patented Inventions 502--502
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 503--503
                      Anonymous   Notes and Queries  . . . . . . . . . . . 507--507
                      Anonymous   A Peril to the United States Navy,
                                  Forming Gatun Lake, and more . . . . . . 490--492
                Robert Grimshaw   The Klingenberg Dam in Saxony, De
                                  Quervain's Expedition Across Greenland,
                                  and more . . . . . . . . . . . . . . . . 492--493
                      Anonymous   The Transmission of Photographs Over
                                  Telephone Wires  . . . . . . . . . . . . 493--494
                      Anonymous   Devouring a Hundred Tons of Mud per
                                  Minute . . . . . . . . . . . . . . . . . 494--494
                      Anonymous   The Panama Hat Palm, The Digestion of a
                                  New-born Infant, and more  . . . . . . . 494--494
                 P. F. Mottelay   Sculpturing with the Camera  . . . . . . 496--497
                      Anonymous   Sir William White, K.C.B.  . . . . . . . 499--499
                      Anonymous   What Inventors are Doing . . . . . . . . 500--501
            J. George Frederick   Is it Right to Maintain Prices on
                                  Patented Articles? . . . . . . . . . . . 501--501
                Henry S. Monroe   IV. --- Shall My Boy Become a Mining
                                  Engineer?  . . . . . . . . . . . . . . . 504--504
                      Anonymous   Muscle as the Motive Power in Flight,
                                  The Earth-eaters, and more . . . . . . . 506--506

Scientific American
Volume 106, Number 23, June 8, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 515--515
                      Anonymous   Inventions: Recently Patented Inventions 521--522
                      Anonymous   Notes and Queries  . . . . . . . . . . . 523--523
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 524--524
                      Anonymous   The Senate Committee's Report on the
                                  ``Titanic'', The House Naval
                                  Appropriation Bill, and more . . . . . . 510--511
                      Anonymous   Radiographic Study of the Effect of
                                  Exercise on the Heart, Exercising in
                                  Bed, Ripening Dates Artificially, and
                                  more . . . . . . . . . . . . . . . . . . 512--512
                     E. A. Fath   The Great Tower Telescope of the Mt.
                                  Wilson Solar Observatory . . . . . . . . 513--514
                  C. M. Carroll   Crop Improvement: A Problem in
                                  Increasing Our National Efficiency . . . 514--515
              J. Bernard Walker   Panama --- Personal Impressions of the
                                  Work --- II  . . . . . . . . . . . . . . 516--517
                      Anonymous   Wilbur Wright  . . . . . . . . . . . . . 518--518
                C. C. Kiplinger   The Laboratory . . . . . . . . . . . . . 519--519
                  E. R. Stockle   A Thermo Magnetic Motor and Generator,
                                  Reproducing Engravings without Light . . 519--519
                      Anonymous   What Inventors are Doing . . . . . . . . 520--520
                  Paul F. Trout   How to Remove Lead Sulphate from Lead
                                  Plates, Bifunctional Formation of
                                  Storage Battery Plates, and more . . . . 520--521
                W. J. Humphreys   What is the Principle of Relativity? . . 525--526
                      Anonymous   The Spectrum of the Aurora, A Forest
                                  Service Circular on Gum Woods  . . . . . 526--527

Scientific American
Volume 106, Number 24, June 15, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 535--535
                      Anonymous   Inventions New and Interesting: What
                                  Inventors are Doing  . . . . . . . . . . 543--544
                      Anonymous   Inventions: Recently Patented Inventions 544--544
                      Anonymous   Notes and Queries  . . . . . . . . . . . 556--556
                      Anonymous   Life-like but not Living, Mares' Nests
                                  in Atmospheric Optics, and more  . . . . 530--531
                 Maurice Magnus   Prof. Malladra's Descent into the Crater
                                  of Vesuvius  . . . . . . . . . . . . . . 532--533
            Waldemar Kaempffert   How the Germans Utilize Waste --- V  . . 534--534
         Watterson R. Rothacker   Industrial Uses of the Moving Picture    536--536
                      Anonymous   How we can Utilize . . . . . . . . . . . 537--537
                   E. Scherubel   An Industry that Thrives on the
                                  Utilization of Waste . . . . . . . . . . 538--538
                    S. B. Flagg   The Dividends that Float Up the Chimney  539--540
               John L. Cochrane   The Enormous Fire Waste of the United
                                  States . . . . . . . . . . . . . . . . . 541--541
                      Anonymous   Curiosities of Science and Invention . . 542--542
                      Anonymous   The Lohmann Process, Tests for the
                                  Quality of Glue, and more  . . . . . . . 554--556

Scientific American
Volume 106, Number 25, June 22, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 563--563
                      Anonymous   Inventions New and Interesting . . . . . 568--569
                      Anonymous   Inventions: Recently Patented Inventions 570--570
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 571--571
                      Anonymous   The Recent Army Aeronautical Accident,
                                  Why not Patents for New Plants and
                                  Animals?, and more . . . . . . . . . . . 558--559
                      Anonymous   The German Battle-cruiser ``Moltke'' . . 560--560
              John Ritchie, Jr.   A Scientific Test of the Electric Truck  561--561
            Waldemar Kaempffert   How the Germans Utilize Waste --- VI . . 562--562
      Sidonie Matzner Gruenberg   What is the Montessori Method? . . . . . 564--565
                      Anonymous   Animal Masquerades . . . . . . . . . . . 566--566
               Albert F. Bishop   Suggestions for the Workshop . . . . . . 567--567
                  H. D. Chapman   Sawing Tubing at an Angle  . . . . . . . 567--567
               George W. Colles   A Three-line Drafting Pencil . . . . . . 567--567
                    J. V. Romig   How to Determine the Thrust of a
                                  Propeller  . . . . . . . . . . . . . . . 567--567
 William Grötzínger   How to Extract a Damaged Screw . . . . . 567--567
                      Anonymous   Co-operative Fire Protection for Small
                                  Communities  . . . . . . . . . . . . . . 572--573
                      Anonymous   Formic and Lactic Acids, American Road
                                  Congress, and more . . . . . . . . . . . 574--575

Scientific American
Volume 106, Number 26, June 29, 1912

           Henry Norris Russell   The Heavens in July  . . . . . . . . . . 585--585
                      Anonymous   Inventions New and Interesting . . . . . 588--589
                      Anonymous   Inventions: Recently Patented Inventions 590--590
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 593--594
                      Anonymous   Battle-cruisers for the United States
                                  Navy, Emergency Cars for Stranded
                                  Motorists, and more  . . . . . . . . . . 578--579
                Carl Dienstbach   A Journey in a Passenger carrying
                                  Zeppelin Airship . . . . . . . . . . . . 580--580
                 Meigs O. Frost   The Galveston Causeway . . . . . . . . . 581--581
                  Arthur Warren   George Westinghouse --- Engineer and
                                  Inventor . . . . . . . . . . . . . . . . 582--582
                      Anonymous   The Winnipeg Motor Contest . . . . . . . 583--583
                      Anonymous   The ``Electric Niagara'' Delusion in
                                  France . . . . . . . . . . . . . . . . . 584--584
             C. Fitzhugh Talman   New Ideas about Lightning  . . . . . . . 586--587
                      Anonymous   A Fire Exposition  . . . . . . . . . . . 592--592
                      Anonymous   An International Exhibition of the
                                  Building Trades at Leipsiz in 1913,
                                  Railway Building in German East Africa   595--595

Scientific American
Volume 106, Number 3, January 20, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 67--67
                      Anonymous   Inventions New and Interesting: The
                                  Inventor's Department  . . . . . . . . . 72--73
                      Anonymous   Inventions: Recently Patented Inventions 73--74
                      Anonymous   Notes and Queries  . . . . . . . . . . . 78--78
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 78--79
                      Anonymous   Lessons of the Equitable Building Fire,
                                  The New York Automobile Shows, and more  62--63
                  John Swaffham   Frost Flowers and Snow Crystals  . . . . 64--64
                      Anonymous   An Amazing Tale of the Sea . . . . . . . 65--65
            Waldemar Kaempffert   Training Captains of Industry in Germany
                                  --- II . . . . . . . . . . . . . . . . . 66--67
             Stanley Yale Beach   The Third Aviation Salon at Paris  . . . 68--69
                      Anonymous   The Kinemacolor Process  . . . . . . . . 70--70
             William Grotzinger   Suggestions for the Workshop . . . . . . 71--71
                 B. F. Dashiell   Testing the Hardness of Metals . . . . . 71--71
               George W. Colles   Holding a Screw by the Hand  . . . . . . 71--71
                Israel R. Hicks   Adjustable Spanner Wrench  . . . . . . . 71--71
               Albert F. Bishop   A Home-made Surface Gage . . . . . . . . 71--71
                 Lloyd V. Beets   To Keep a Tank from Bursting in Freezing
                                  Weather  . . . . . . . . . . . . . . . . 71--71
                      Anonymous   Tribute from a Leading London Daily, How
                                  Far May Thunder be Heard, The Largest
                                  University in the World  . . . . . . . . 77--77

Scientific American
Volume 106, Number 4, January 27, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 87--87
                      Anonymous   Inventions: Recently Patented Inventions 94--96
                      Anonymous   Notes and Queries  . . . . . . . . . . . 97--100
                      Anonymous   Shall the Panama Canal Be Free?, Success
                                  in Accident Prevention, and more . . . . 82--83
                  C. Dienstbach   Recent Developments in French Dirigibles 84--86
                      Anonymous   A Difficult Engineering Feat Carried out
                                  in Paris . . . . . . . . . . . . . . . . 86--86
                    Edwin Gould   Rules Governing the Competition for the
                                  \$15,000 Flying Machine Prize}} Offered
                                  by {Mr. Edwin Gould} . . . . . . . . . . 87--87
                  F. C. Coleman   The First Trans-continental Railway in
                                  South America, from the Atlantic to the
                                  Pacific  . . . . . . . . . . . . . . . . 88--89
                      Anonymous   The Third Award of the
                                  \booktitleScientific American Medal for
                                  the Conservation of Human Life and Limb  90--90
                      Anonymous   Curiosities of Science and Invention . . 91--91
                  Russell Edson   The Laboratory, An Easily Made Vacuum
                                  Apparatus  . . . . . . . . . . . . . . . 92--92
              William P. Munger   An Improved Laboratory Label . . . . . . 92--92
                   C. S. Bourne   An Audible Timer . . . . . . . . . . . . 92--93

Scientific American
Volume 106, Number 5, February 3, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 107--107
           Henry Norris Russell   The Heavens in February  . . . . . . . . 110--110
                      Anonymous   Inventions New and Interesting: The
                                  Inventor's Department  . . . . . . . . . 112--114
                      Anonymous   Inventions: Recently Patented Inventions 113--114
                      Anonymous   Notes and Queries  . . . . . . . . . . . 114--119
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 119--119
                      Anonymous   By Railroad to Key West, A Timely
                                  Warning, and more  . . . . . . . . . . . 102--103
              L. William Thavis   Mapping the Value of Gravitational Force 104--104
                      Anonymous   Semi-steel Cars in Railroad Wrecks . . . 105--105
                James V. Martin   Across the Atlantic by Aeroplane . . . . 106--106
                Hamilton Wright   Savage Irrigation in Luzon . . . . . . . 108--108
                      Anonymous   The New Vickers Light Automatic
                                  Rifle-caliber Gun and its Adjustable
                                  Mounting . . . . . . . . . . . . . . . . 109--109
                   N. M. Powell   Suggestions for the Workshop . . . . . . 111--111
                  H. D. Chapman   Inside Pulling Grip  . . . . . . . . . . 111--111
                   Joseph Vaghi   How to Clamp a Mitered Door Frame  . . . 111--111
               Albert F. Bishop   Drills for Screws and Taps . . . . . . . 111--111
                  H. M. Nichols   Burnt-gas Exhaust for a Garage . . . . . 111--111
              Frederick E. Ward   A Simple Resister  . . . . . . . . . . . 111--111

Scientific American
Volume 106, Number 6, February 10, 1912

                      Anonymous   Correspondence: Correspondance . . . . . 129--129
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 145--147
                      Anonymous   Notes and Queries  . . . . . . . . . . . 147--147
                      Anonymous   A ``Photogrammetric Gun'' for Making
                                  Surveys in a Balloon . . . . . . . . . . 123--125
                  Lynn W. Ellis   Making the ``Tractioneer'' . . . . . . . 126--128
                      Anonymous   Our Good Roads Number, Transatlantic
                                  Wireless Telegraphy without Antennas . . 128--128
                     W. H. Beal   How the Scientific Farmer Fertilizes his
                                  Soil . . . . . . . . . . . . . . . . . . 130--131
               Edward F. Croker   Fire Waste and its Prevention  . . . . . 132--132
        Ernest Lincoln Ferguson   The Rural Motor Vehicle  . . . . . . . . 133--133
            Waldemar Kaempffert   How Germany Handles the Labor Question
                                  --- III  . . . . . . . . . . . . . . . . 134--134
                  Frances Lynne   The Smudge Pot and its Work  . . . . . . 135--135
              John Ritchie, Jr.   The Model Boat ``Froude''  . . . . . . . 136--136
              Frank T. Searight   The Curtiss Flying Boat  . . . . . . . . 137--137
                      Anonymous   Curiosities of Science and Invention . . 138--142
                      Anonymous   Photographs in Natural Colors on Paper   142--143
                    Isaac Motes   Grafting Pecan upon Hickory  . . . . . . 143--145
               Franklin O. King   Raising a Roof for a Rainy Day . . . . . 147--147

Scientific American
Volume 106, Number 7, February 17, 1912

                      Anonymous   Inventions: Recently Patented Inventions 162--164
                      Anonymous   Notes and Queries  . . . . . . . . . . . 167--167
                      Anonymous   Fire Towers as Life-savers, The-
                                  Question of Canal Tolls, and more  . . . 150--151
                      Anonymous   The Wire-wound Dirigible Balloon . . . . 152--152
             Percival A. Hislam   The Jubilee of the Turret-ship . . . . . 153--154
                   L. V. Redman   Defects in Present Day Varnishes . . . . 154--154
        Charles Fitzhugh Talman   The ``Great Storm'' of 1703  . . . . . . 155--155
                     E. A. Fath   The Mount Wilson Solar Observatory . . . 156--157
            P. Harvey Middleton   How Railroad Men are Made  . . . . . . . 158--158
                      Anonymous   The Self-scoring Target  . . . . . . . . 159--159
                      Anonymous   What Inventors are Doing . . . . . . . . 160--160
                      Anonymous   George Westinghouse's Automobile
                                  Air-spring . . . . . . . . . . . . . . . 160--162
                  John B. Huber   The Heroisms of Medical Men  . . . . . . 164--167

Scientific American
Volume 106, Number 8, February 24, 1912

                      Anonymous   Inventions: Recently Patented Inventions 182--184
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 185--185
                      Anonymous   A Solution of the Car-seating Problem,
                                  An Old Engine Under a New Dress, and
                                  more . . . . . . . . . . . . . . . . . . 170--171
                    John P. Fox   Pittsburgh Trailers and Their Lessons    172--172
                  John B. Huber   The Late Joseph Lister . . . . . . . . . 173--173
              Charles A. Kofoid   A New Apparatus for Marine Exploration   174--174
                      Anonymous   An Arithmetical ``Nut''  . . . . . . . . 174--174
                   W. R. Gerard   Trees that Yield Butter  . . . . . . . . 175--175
                      Anonymous   The Berlin Museum of German Industry,
                                  Uses of the Castor Bean, and more  . . . 175--175
            Waldemar Kaempffert   New York's First Subway  . . . . . . . . 176--177
             Stanley Yale Beach   Recent Happenings in Aviation: The
                                  Boland Biplane, and more . . . . . . . . 178--178
                 Philip Edelman   The Laboratory, Some Simple-Catalytic
                                  Experiments  . . . . . . . . . . . . . . 179--179
                      Anonymous   Home-made Chemical Fire Extinguisher . . 179--179
              William D. Munger   Maintaining a Constant Level in
                                  Batteries  . . . . . . . . . . . . . . . 179--179
                   L. Shumacher   A New Method for the Determination of
                                  Sulphur in Pyrites and Pyrrhotite  . . . 179--179
                George A. James   Simple Lifter for the Laboratory . . . . 179--179
                      Anonymous   What Inventors are Doing: Some Curious
                                  European Motor Sleighs, and more . . . . 180--182
                      Anonymous   Durability of Wood Cut in Spring and in
                                  Summer . . . . . . . . . . . . . . . . . 185--185

Scientific American
Volume 106, Number 9, March 2, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 195--195
           Henry Norris Russell   The Heavens in March . . . . . . . . . . 198--198
                      Anonymous   Notes and Queries  . . . . . . . . . . . 207--207
                      Anonymous   The Peril of the Steel Rail, Opening the
                                  East River to the Sound, and more  . . . 190--191
        William Atherton Du Puy   Making Oleomargarine Respectable . . . . 192--192
         Waldemar B. Kaempffert   Welfare Work in Germany --- IV . . . . . 193--194
                      Anonymous   The Creation of a Dignified Civic Center
                                  in New York  . . . . . . . . . . . . . . 195--195
                      Anonymous   Indian Heads Cast from Life  . . . . . . 196--197
                      Anonymous   Curiosities of Science and Invention . . 199--199
                      Anonymous   What Inventors are Doing . . . . . . . . 200--202
              John Ritchie, Jr.   I --- Shall I Give My Boy a Technical
                                  Education? . . . . . . . . . . . . . . . 202--204
                      Anonymous   The International Congress of Navigation 204--204
                      Anonymous   One of the ``Ten Stories'', The Wise
                                  Eyes of Robin, and more  . . . . . . . . 205--205


Scientific American
Volume 107, Number 1, July 6, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 7--7
        William Joseph Wheatley   Inventions New and Interesting . . . . . 12--13
                      Anonymous   Inventions: Recently Patented Inventions 13--14
                      Anonymous   Notes and Queries  . . . . . . . . . . . 15--15
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 15--15
                      Anonymous   High Speed Through the Ice Fields,
                                  Battle Efficiency and Navy
                                  Appropriations, and more . . . . . . . . 2--3
                      Anonymous   A New Type of Powerful Mortar  . . . . . 4--4
                      Anonymous   The Largest Ship Yet Constructed . . . . 5--6
                    H. C. Price   A New Use for Potatoes . . . . . . . . . 8--8
                      Anonymous   The Failures of the ``Aviettes'' . . . . 9--9
                    Clara Reese   Preserving and Mounting Plant Specimens  10--10
                 Philip Edelman   The Laboratory . . . . . . . . . . . . . 11--11
                Gustave Michaud   Some Experiments with Blue Glass . . . . 11--11
                 M. C. Whitaker   V. --- Shall My Boy Become a Chemical
                                  Engineer?  . . . . . . . . . . . . . . . 16--16
                Reginald Gordon   The Annual Convention of the Master Car
                                  Builders' Association  . . . . . . . . . 17--18
                      Anonymous   Superheated Steam in Locomotive Service,
                                  The Current Supplement . . . . . . . . . 19--19

Scientific American
Volume 107, Number 10, September 7, 1912

                      Anonymous   Correspondence: Correspondance . . . . . 195--195
                Joseph B. Baker   Inventions New and Interesting . . . . . 200--201
                      Anonymous   Inventions: Recently Patented Inventions 202--202
                      Anonymous   Notes and Queries  . . . . . . . . . . . 203--203
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 203--203
                      Anonymous   The New Dispensation or Development of
                                  Children by Environment, The Half-mad,
                                  and more . . . . . . . . . . . . . . . . 190--191
                John G. Prasuhn   A Novel Use of Cement in Sculpture . . . 192--192
                      Anonymous   A Railway Car Driven by Gas and
                                  Electricity  . . . . . . . . . . . . . . 193--193
                      Anonymous   Recent Improvements in Electric Vehicles 194--194
                      Anonymous   Oil-mixed Portland Cement Concrete,
                                  Detecting Icebergs and Land at Sea . . . 194--194
              Nathan C. Johnson   Making Models of the Magnetic Field  . . 196--198
          F. H. Williamson, Jr.   An Electric Harp . . . . . . . . . . . . 199--199
             James H. Armstrong   A Simple Vehicle Jack  . . . . . . . . . 199--199
               Albert F. Bishop   Lashing or Seizing Timbers Together  . . 199--199
                 W. E. Woodward   The Trade-mark as a Business Asset, How
                                  Legislators View Patents, and more . . . 201--201
              John Ritchie, Jr.   VII. --- Shall My Boy Become a Naval
                                  Architect? . . . . . . . . . . . . . . . 204--204
             Harrington Emerson   Practising Efficiency and Knowing Costs,
                                  How Much Bread will a Given Quantity of
                                  Flour Make?  . . . . . . . . . . . . . . 206--207

Scientific American
Volume 107, Number 13, September 28, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 259--259
                      Anonymous   Inventions New and Interesting . . . . . 264--265
                      Anonymous   Inventions: Recently Patented Inventions 265--265
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 267--267
                      Anonymous   America and the Gordon Bennett Cup, Good
                                  Rails and the Rail Mills, and more . . . 254--255
                      Anonymous   New Methods of Measuring Clouds  . . . . 256--256
                 G. Michaud and   
                  J. F. Tristan   How to Make an Ultra-violet Ray
                                  Objective  . . . . . . . . . . . . . . . 257--257
               Edward B. Howell   The World's Production of Gold . . . . . 257--258
                      Anonymous   The Nature and Origin of Life  . . . . . 258--258
                 George F. Kunz   Professor Dr. Paul Walden, A 10,000-ton
                                  Motor-driven Ship  . . . . . . . . . . . 260--260
                      Anonymous   The Discovery of a New People  . . . . . 261--261
                Putnam A. Bates   Farm Electric Lighting by Wind Power . . 262--263
                      Anonymous   A New Principal Examiner . . . . . . . . 266--266
                   G. H. Bryant   Light Trucks with Pneumatic Tires v.
                                  Heavier Vehicles with Solid Tires  . . . 267--268
                 John R. Eustis   Subsidized Motor Trucks  . . . . . . . . 268--269
                      Anonymous   A Jubilee of the Umbrella  . . . . . . . 271--271

Scientific American
Volume 107, Number 14, October 5, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 279--279
                      Anonymous   Inventions New and Interesting . . . . . 284--284
                      Anonymous   Inventions: Recently Patented Inventions 285--286
                      Anonymous   Good Crops and Good Times, Theory
                                  Modified by Practice, and more . . . . . 274--277
                   J. M. Palmer   The Motorcycle and the Farmer, The First
                                  Storage Battery Train, and more  . . . . 277--278
              J. Bernard Walker   Landsman's Log Aboard the United States
                                  Destroyer ``Patterson'' --- I  . . . . . 280--281
           Henry Norris Russell   The Heavens in October . . . . . . . . . 282--282
                   B. F. Albert   Making a Tool Chest  . . . . . . . . . . 283--283
                  Freeman Weiss   Rope-end Hook  . . . . . . . . . . . . . 283--283
               Thomas T. McNish   Improved Arrangement of Cellar Lamp  . . 283--283
              Frederick E. Ward   Home-made Oil Filters, Workshop Notes,
                                  and more . . . . . . . . . . . . . . . . 283--283
                   A. F. Bishop   Circulating Pump for Gasoline Engines    283--283
                 B. F. Dashiell   Electric Speed Indicator . . . . . . . . 283--283
                 P. F. Mottelay   The Railophone, Notes for Inventors  . . 284--285
                      Anonymous   A Problem in Selling Electricity . . . . 287--290
                      Anonymous   Selling Agent must not Imitate his
                                  Principal's Goods or Trade-mark  . . . . 291--291

Scientific American
Volume 107, Number 15, October 12, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 301--301
                      Anonymous   Inventions New and Interesting . . . . . 308--309
                      Anonymous   Inventions: Recently Patented Inventions 309--309
                      Anonymous   Notes and Queries  . . . . . . . . . . . 319--319
                      Anonymous   A Warning Neglected, Honor to Whom Honor
                                  is Due, and more . . . . . . . . . . . . 296--297
                   J. M. Miller   How One County Built a Good Road . . . . 298--298
                Putnam A. Bates   Harvesting Ice by Electric Power . . . . 299--300
               Hayner H. Gordon   Labor-saving Devices for the Home, The
                                  End of the Oldest Newspaper in the World 300--300
                H. S. McCormack   Labor-saving Duplicating Machines for
                                  the Office . . . . . . . . . . . . . . . 302--303
       Theodore M. R. von Keler   Labor-saving Devices that Produce
                                  Automobiles  . . . . . . . . . . . . . . 304--305
                      Anonymous   The Imposing Naval Review at New York    306--307
                      Anonymous   The International Congress on Hygiene,
                                  Daniel Webster on Patent Property  . . . 313--318

Scientific American
Volume 107, Number 16, October 19, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 327--327
                      Anonymous   Inventions New and Interesting . . . . . 332--332
                      Anonymous   Inventions: Recently Patented Inventions 334--336
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 338--338
                      Anonymous   Notes and Queries  . . . . . . . . . . . 339--339
                      Anonymous   Patent ``Evils'', The Lesson of the
                                  Naval Review, and more . . . . . . . . . 322--323
                Marc N. Goodnow   Concrete Houses Versus Tenements . . . . 324--325
                   C. F. Talman   The Barocyclonometer, Solid Oil as a
                                  Marine Fuel  . . . . . . . . . . . . . . 326--326
                Robert Hadfield   Sinhalese Iron of Ancient Origin . . . . 327--327
              J. Bernard Walker   Landsman's Log Aboard the United States
                                  Destroyer ``Patterson'' --- II . . . . . 328--329
             Stanley Yale Beach   Aviation at the French Maneuvers . . . . 330--331
               Hayner H. Gordon   The Diesel Patent  . . . . . . . . . . . 332--333
              William L. Symons   Early Attempts to Protect Trade-marks,
                                  Legal Notes, and more  . . . . . . . . . 333--333
                      Anonymous   Money That Really Talks, Electrical
                                  Energy for Reclaiming a River Bank . . . 337--337

Scientific American
Volume 107, Number 17, October 26, 1912

                      Anonymous   Correspondence: Correspondance . . . . . 347--347
                      Anonymous   Inventions New and Interesting . . . . . 352--352
                      Anonymous   Inventions: Recently Patented Inventions 352--353
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 356--356
                      Anonymous   Physical Safeguards in Railroad Travel,
                                  The Nobel Prize Awarded to Dr. Carrel,
                                  and more . . . . . . . . . . . . . . . . 342--343
           Genevieve Grandcourt   The ``Immortality'' of Tissues . . . . . 344--344
                      Anonymous   Lesson of the Railroad Wreck at Westport 345--345
                   C. H. Claudy   A Triple Mirror for Secret Signaling . . 346--346
              Alfred Gradenwitz   A Glimpse of a Scenic Painter's Studio   348--349
                      Anonymous   The Twin-screw Motor Vessel ``Monte
                                  Penedo'', The Improvement of Fifth
                                  Avenue, and more . . . . . . . . . . . . 350--350
              Frederick E. Ward   An Electric Stove  . . . . . . . . . . . 351--351
               Stuart K. Harlow   Studying Prismatic Colors of
                                  Incandescent Lamps with a Reading Glass  351--351
                Maxwell Epstein   Leyden Jars Made of Incandescent Lamp
                                  Bulbs  . . . . . . . . . . . . . . . . . 351--351
                Samuel W. Balch   Relative Clearness of White and Black
                                  Letters  . . . . . . . . . . . . . . . . 351--351
                      Anonymous   The Proposed Trans-Sahara Railway  . . . 355--355
                 Morris A. Hall   Delivery Service of New York's
                                  Department Stores, Motor Truck Queries
                                  and Answers  . . . . . . . . . . . . . . 356--357
                      Anonymous   Russian Military Flying Machines . . . . 358--358

Scientific American
Volume 107, Number 18, November 2, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 367--367
           Henry Norris Russell   The Heavens in November  . . . . . . . . 371--371
                      Anonymous   Inventions New and Interesting . . . . . 372--373
                      Anonymous   Inventions: Recently Patented Inventions 374--374
                      Anonymous   Notes and Queries  . . . . . . . . . . . 378--378
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 379--379
                      Anonymous   Our Panama Canal Number, A Coming
                                  Profession, and more . . . . . . . . . . 362--363
                Putnam A. Bates   Electricity and Spray Irrigation . . . . 364--364
              Charles A. Junken   Mortar Fire  . . . . . . . . . . . . . . 365--366
                  J. A. Stewart   New York State Education Building  . . . 366--366
                      Anonymous   Aerodynamic Experiments of Due de Guiche 368--368
                  W. E. Gardner   The Bushmen of Africa  . . . . . . . . . 370--370
               T. Hart Anderson   Compulsory Licenses, Legal Notes, and
                                  more . . . . . . . . . . . . . . . . . . 373--373
                      Anonymous   Panama Exposition Postage Stamps, Notice 377--377

Scientific American
Volume 107, Number 19, November 9, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 396--396
                      Anonymous   Inventions: Recently Patented Inventions 400--400
                      Anonymous   Notes and Queries  . . . . . . . . . . . 408--409
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 410--411
                      Anonymous   The Man, The Machine, and more . . . . . 384--384
               Henry L. Stimson   Fortifying the Canal . . . . . . . . . . 385--385
              William L. Sibert   The Gatun Dam and Locks  . . . . . . . . 386--387
                 D. D. Gaillard   Culebra Cut and the Problem of the
                                  Slides . . . . . . . . . . . . . . . . . 388--390
                A. J. Orenstein   The Sanitation of the Canal Zone . . . . 392--393
               Emory R. Johnson   The Panama Canal and the Commerce of the
                                  United States  . . . . . . . . . . . . . 394--396
              David B. Rushmore   The Electrification of the Panama Canal  397--398
        William Atherton Du Puy   Introducing Great Inventions, The
                                  Arlington Wireless Telegraph Station,
                                  and more . . . . . . . . . . . . . . . . 401--404
                      Anonymous   Result of the Gordon Bennett Balloon
                                  Race . . . . . . . . . . . . . . . . . . 407--407

Scientific American
Volume 107, Number 2, July 13, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 27--27
                      Anonymous   Inventions New and Interesting . . . . . 40--41
                      Anonymous   Inventions: Recently Patented Inventions 42--42
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 42--42
                  Ray Lankester   Prof. Elie Metchnikoff, No Contest for
                                  the Gould-\booktitleScientific American
                                  Prize, and more  . . . . . . . . . . . . 21--23
           Franz Schneider, Jr.   The Disposal of a City's Waste . . . . . 24--25
            Waldemar Kaempffert   The Business Side of German Science ---
                                  VII  . . . . . . . . . . . . . . . . . . 26--26
                      Anonymous   The Fatal Aeroplane Accident at Boston   27--27
                      Anonymous   Destruction of the Airship ``Akron'  . . 28--29
                 J. M. Westgate   Growing Alfalfa in the East  . . . . . . 30--32
          Frederick H. Billings   Wholesome Water in the Country . . . . . 33--33
                   W. C. Rucker   Insects and Disease  . . . . . . . . . . 34--35
                Earle B. Phelps   The Bacterial Purification of Water and
                                  Sewage . . . . . . . . . . . . . . . . . 36--37
                 W. T. Sedgwick   Sewage and the Farmer  . . . . . . . . . 38--38
                      Anonymous   Curiosities of Science and Invention . . 39--39
               W. E. Woodward-I   The Trade-mark as a Business Asset,
                                  Notes for Inventors and more . . . . . . 41--41
             Sidney Graves Koon   The Efficiency of the Large
                                  Manufacturing Plant  . . . . . . . . . . 44--44
                      Anonymous   The Destruction of the ``Schwaben'', The
                                  Current Supplement, and more . . . . . . 47--48

Scientific American
Volume 107, Number 20, November 16, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 419--419
                      Anonymous   Inventions New and Interesting . . . . . 424--425
                      Anonymous   Inventions: Recently Patented Inventions 426--426
                      Anonymous   Notes and Queries  . . . . . . . . . . . 427--427
                      Anonymous   The Peril of the Short Crossover,
                                  Unscientific Futilities, and more  . . . 414--416
                  F. C. Coleman   A Forty-mile-an-hour Dreadnought,
                                  International Show at St. Petersburg . . 416--416
                  Jesse Simmons   How Gold is Bought . . . . . . . . . . . 417--418
                      Anonymous   Inauguration of Emperor William
                                  Institutes, Luc Bink --- a Plant that
                                  Produces Textile Fibers, and more  . . . 418--418
                 Alfred Emerson   The Mining of Herculaneum  . . . . . . . 420--422
                      Anonymous   A Parachute Bomb for Aeronautic Use,
                                  Using a Frog's Leg as Wireless Telegraph
                                  Receiver, Horse-power and Kilowatt, and
                                  more . . . . . . . . . . . . . . . . . . 422--422
                  H. D. Chapman   A Tool for Cutting Gaskets . . . . . . . 423--423
              Nathan C. Johnson   Welding Extensions on Small Drills,
                                  Workshop Notes . . . . . . . . . . . . . 423--423
              Louis H. Tolhurst   Improvised Milling Machine . . . . . . . 423--423
                      Anonymous   Night Storm Signals, Do Crystals Conduct
                                  Heat?  . . . . . . . . . . . . . . . . . 430--431

Scientific American
Volume 107, Number 21, November 23, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 439--439
                      Anonymous   Inventions New and Interesting . . . . . 444--444
                      Anonymous   Inventions: Recently Patented Inventions 445--445
                      Anonymous   Notes and Queries  . . . . . . . . . . . 448--449
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 450--451
                      Anonymous   The Sherman Anti-Trust Act and the
                                  Patentee, Longer Ships --- Longer Piers,
                                  and more . . . . . . . . . . . . . . . . 434--435
                 R. G. Skerrett   Salvage and Testing Facilities for
                                  Submarines . . . . . . . . . . . . . . . 436--437
               Glenn H. Curtiss   Flying-Boat Races  . . . . . . . . . . . 438--438
         John Hays Hammond, Jr.   Some Developments in Wireless --- I  . . 438--438
            Harold J. Shepstone   The Bagdad Railway . . . . . . . . . . . 440--442
                  Albert Bracke   A Home-made Portable Anemometer  . . . . 443--443
                 Philip Edelman   Method of Making Selenium Cells  . . . . 443--443
              Walter C. Belcher   An Improved Phosphoroscope . . . . . . . 443--443
                  Ralph D. Rust   A Finder for a Three-inch Telescope  . . 443--443
        Leonard Keene Hirshberg   New Kind of Eyeglasses Made with
                                  Telescopic Lens  . . . . . . . . . . . . 444--445
                      Anonymous   Some Remarkable Specimens of Ancient
                                  Glass  . . . . . . . . . . . . . . . . . 447--447

Scientific American
Volume 107, Number 22, November 30, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 459--459
           Henry Norris Russell   The Heavens in December  . . . . . . . . 462--463
                      Anonymous   Inventions New and Interesting . . . . . 464--464
                      Anonymous   Inventions: Recently Patented Inventions 465--465
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 466--466
                      Anonymous   Notes and Queries  . . . . . . . . . . . 470--470
                      Anonymous   Every Man to his Trade, The ``Bath-tub''
                                  Decision and the Patent Law, and more    454--455
                Joseph B. Baker   Magnetic Chucks for Machine Tools,
                                  Microscopic Crystal Forms as Suggestions
                                  for Designers, and more  . . . . . . . . 456--456
                      Anonymous   The Fourth Paris Aviation Salon  . . . . 457--458
         John Hays Hammond, Jr.   Some Developments in Wireless --- II,
                                  The Rediscovery of America, and more . . 458--458
                  Newton Forest   Asphalt Still a Mysterious Material  . . 460--460
            P. Harvey Middleton   The Industrial Daredevil, The
                                  International Federation of Expositions,
                                  and more . . . . . . . . . . . . . . . . 460--461
             Robert G. Skerrett   An Electric Safety Lamp for Miners,
                                  Automatic Car Coupler, and more  . . . . 464--465
                 John R. Eustis   The Motor Truck's Span of Life, Motor
                                  Track Queries and Answers  . . . . . . . 466--466
                      Anonymous   Public Support of the Aeroplane Fleet in
                                  France . . . . . . . . . . . . . . . . . 469--469
               Franklin O. King   Finding Financial Freedom  . . . . . . . 471--471

Scientific American
Volume 107, Number 23, December 7, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 481--481
                      Anonymous   Inventions New and Interesting . . . . . 490--496
                      Anonymous   Inventions: Recently Patented Inventions 502--503
                      Anonymous   Gratifying Conditions in the Navy,
                                  Fixing the Price of Patented Articles,
                                  and more . . . . . . . . . . . . . . . . 476--477
Theodore M. R. von Kéler   Street Paving with a Motor Truck . . . . 478--478
                  G. M. Sommers   A Freak Racing Car, Anti-malarial Work,
                                  and more . . . . . . . . . . . . . . . . 478--478
                  Jacques Boyer   A New Gun for Throwing Bombs and Life
                                  Lines  . . . . . . . . . . . . . . . . . 479--479
              Frank P. Peterson   Liquefying and Bottling Illuminating
                                  Gas, A Curious Gift to the City of
                                  Evansville, and more . . . . . . . . . . 479--480
                Putnam A. Bates   How Electricity Makes the Dairy Cleaner  482--482
                 Noel J. Deisch   Some Novelties in Glider Construction,
                                  The Function of a University . . . . . . 483--483
                      Anonymous   Monumental Gateway to a Great City . . . 484--489
              Hiram Percy Maxim   The Limitations of Firearm Silencing . . 496--497
                      Anonymous   Paris Wireless and the Time of Day . . . 501--501

Scientific American
Volume 107, Number 24, December 14, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 511--511
                      Anonymous   Inventions New and Interesting . . . . . 516--517
                      Anonymous   Inventions: Recently Patented Inventions 518--518
                      Anonymous   Solving the Pier Problem, An Admirable
                                  Civic Body, and more . . . . . . . . . . 506--507
               Frank C. Perkins   An Automatic Gasoline Engine Cream
                                  Separator  . . . . . . . . . . . . . . . 508--508
                      Anonymous   An Apparatus for Making Observations
                                  from Aeroplanes  . . . . . . . . . . . . 508--508
                   C. H. Claudy   A Mechanical Bill Counter for the United
                                  States Treasury  . . . . . . . . . . . . 508--508
                      Anonymous   An American Small-arms Plant in
                                  Australia  . . . . . . . . . . . . . . . 509--509
             Emma M. V. Triepel   The Parcels Post Zone System . . . . . . 510--511
             Robert G. Skerrett   Catapulting a Hydro-aeroplane from a
                                  Fighting Ship  . . . . . . . . . . . . . 512--513
                   C. H. Claudy   Working a Whistler . . . . . . . . . . . 514--515
                      Anonymous   Wireless Telegraphy Without Sparks . . . 520--522
                John P. Atchley   A Rule to Find the Day of the Week upon
                                  Which Any Given Date in the Christian
                                  Era Fell . . . . . . . . . . . . . . . . 522--522

Scientific American
Volume 107, Number 25, December 21, 1912

                      Anonymous   Correspondence: Correspondance . . . . . 531--531
                  Jacques Boyer   Inventions New and Interesting . . . . . 536--536
                      Anonymous   Inventions: Recently Patented Inventions 538--538
                      Anonymous   Notes and Queries  . . . . . . . . . . . 540--541
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 542--542
                      Anonymous   Bursting of an Army 14-inch Gun, Are
                                  Inventions Ever Willfully Suppressed?,
                                  and more . . . . . . . . . . . . . . . . 526--528
              S. Leonard Bastin   Capturing Frost Flowers  . . . . . . . . 528--528
                  Jacques Boyer   Sending Photographs Over a Telephone
                                  Wire . . . . . . . . . . . . . . . . . . 529--529
                      Anonymous   The Pier Problem at the Port of New York 530--530
                      Anonymous   Solution of the Steel Rail Problem . . . 532--534
                      Anonymous   The Submarine Sledge, Panama Pacific
                                  Exposition, and more . . . . . . . . . . 534--534
        William Grötzinger   Holding Circular Saws While Sharpening   535--535
                 B. F. Dashiell   Some Workshop Suggestions  . . . . . . . 535--535
                   W. D. Graves   Why a Plane ``Iron'' has a ``Cap'' . . . 535--535
               Albert F. Bishop   Steady Rests for Small Lathes  . . . . . 535--535
             Thomas D. Gannaway   Twelve Thousand Postage Stamps Per
                                  Minute, A Network Protector  . . . . . . 536--537
                      Anonymous   Simplified High-potential Apparatus, The
                                  Maxim Motorboat Silencer, and more . . . 537--537

Scientific American
Volume 107, Number 26, December 28, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 551--551
           Henry Norris Russell   The Heavens in January, 1913 . . . . . . 554--554
                      Anonymous   Inventions New and Interesting . . . . . 556--557
                      Anonymous   Inventions: Recently Patented Inventions 557--558
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 561--562
                      Anonymous   Notes and Queries  . . . . . . . . . . . 563--563
                      Anonymous   The Automatic Railroad Stop, The Bureau
                                  of Chemistry's New Chief, and more . . . 546--548
                  John B. Huber   Dr. Janeway's Insufflation Apparatus . . 548--548
           Guy Elliott Mitchell   Is a Forest a Storage Reservoir or a
                                  Stream Regulator?  . . . . . . . . . . . 549--550
Theodore M. R. von Kéler   The Military Supremacy of the Air --- I  550--550
                      Anonymous   Aquatic Life in its Own Setting  . . . . 552--553
                Marcus Benjamin   Edward Charles Pickering . . . . . . . . 555--555
                   Stephen Byrd   A Demonstration of Forestry Erosion
                                  Processes  . . . . . . . . . . . . . . . 555--555
                      Anonymous   New Information on Forest Fires  . . . . 560--560

Scientific American
Volume 107, Number 3, July 20, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 55--55
                      Anonymous   Inventions New and Interesting . . . . . 61--62
                      Anonymous   Inventions: Recently Patented Inventions 62--62
                      Anonymous   Human Fallibility and the Automatic
                                  Stop, The Fate of Vaniman, and more  . . 50--51
               William F. Rigge   ``A Shadow in Court'' --- The Sequel . . 52--52
           T. Commerford Martin   Resuscitation from Electrical Shock  . . 52--52
            Benjamin F. Missner   The Wirelessly Directed Torpedo  . . . . 53--54
            Waldemar Kaempffert   The Business Side of German Science ---
                                  VIII . . . . . . . . . . . . . . . . . . 54--54
                      Anonymous   Macquarie Island . . . . . . . . . . . . 54--54
            Harold J. Shepstone   Recent Excavations at Samaria  . . . . . 56--57
                      Anonymous   Handcuff Releases Under Difficulties . . 58--58
                      Anonymous   Blowing Up a Locomotive Boiler . . . . . 59--59
            F. Willy Hinrichsen   Rubber Natural and Synthetic . . . . . . 60--60
                 W. E. Woodward   The Trade-mark as a Business Asset . . . 62--62
             W. Irving Chambers   A Hangar Ship, Growth of the Automobile
                                  Industry . . . . . . . . . . . . . . . . 63--65
                      Anonymous   Luminous Phenomena Associated with
                                  Earthquakes  . . . . . . . . . . . . . . 67--67

Scientific American
Volume 107, Number 4, July 27, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 75--75
                      Anonymous   Inventions New and Interesting . . . . . 80--80
                      Anonymous   Inventions: Recently Patented Inventions 82--83
                      Anonymous   Notes and Queries  . . . . . . . . . . . 83--83
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 83--83
                      Anonymous   The Senate Bill for Safe Ships, The
                                  Royal Society, and more  . . . . . . . . 70--71
            Gustave Michaud and   
                  Fidel Tristan   Black and White Men in Invisible Light   72--72
                  John B. Huber   ``Heart Stopping'' as a Profession . . . 72--72
                      Anonymous   The ``Commonwealth''-- `New Hampshire''
                                  Collision  . . . . . . . . . . . . . . . 73--73
                      Anonymous   Artificial Surf Baths  . . . . . . . . . 74--74
                      Anonymous   A Mammoth Norwegian Power Plant  . . . . 76--77
              J. W. N. Sullivan   Henri Poincaré  . . . . . . . . . . . . . 78--78
        William Atherton Du Puy   Hurrying Nature  . . . . . . . . . . . . 79--79
                    Hiram Maxim   Preventing Collisions at Sea . . . . . . 80--81
                 W. E. Woodward   The Trade-mark as a Business Asset, The
                                  Federal Trade-mark Law --- III, and more 81--82
         Harold Whiting Slauson   The Why and Wherefore of the Muffler and
                                  Cut-out  . . . . . . . . . . . . . . . . 84--85

Scientific American
Volume 107, Number 5, August 3, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 95--95
           Henry Norris Russell   The Heavens in August  . . . . . . . . . 98--98
                      Anonymous   Inventions New and Interesting . . . . . 101--101
                      Anonymous   Inventions: Recently Patented Inventions 103--103
                      Anonymous   Notes and Queries  . . . . . . . . . . . 106--106
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 107--107
                      Anonymous   Wanted --- a Chief for the Bureau of
                                  Chemistry, Interference and Aeroplane
                                  Disasters, and more  . . . . . . . . . . 90--92
                   C. H. Claudy   From Clay to Bronze  . . . . . . . . . . 93--94
             Robert G. Skerrett   A New Form of Underwater Attack  . . . . 94--94
       Sylvanus Griswold Morley   Quirigua --- An American Town 1,400
                                  Years Old  . . . . . . . . . . . . . . . 96--97
               F. W. Hinrichsen   The Business Aspect of Synthetic Rubber  99--99
                      Anonymous   The Increasing Temperature of the World  99--99
                      Anonymous   Curiosities of Science and Invention . . 100--100
                 W. E. Woodward   The Trade-mark as a Business Asset . . . 102--102
                   H. C. Peffer   VI. --- Shall My Boy Become an
                                  Industrial Chemist?  . . . . . . . . . . 104--105
                      Anonymous   New System of Electrically-heated Hot
                                  Water Supply, A Polar Drift \`a la
                                  Nansen . . . . . . . . . . . . . . . . . 105--105

Scientific American
Volume 107, Number 6, August 10, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 115--115
                      Anonymous   Inventions New and Interesting . . . . . 120--120
        Leonard Keene Hirshberg   A Pocket Sun-dial  . . . . . . . . . . . 120--121
                 W. E. Woodward   The Trade-mark as a Business Asset . . . 121--121
                      Anonymous   Inventions: Recently Patented Inventions 122--122
                      Anonymous   Notes and Queries  . . . . . . . . . . . 123--123
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 123--123
                      Anonymous   Board of Trade Report on the
                                  ``Titanic'', A Bureau of Farm Power, and
                                  more . . . . . . . . . . . . . . . . . . 110--111
                      Anonymous   The Cream Separator  . . . . . . . . . . 112--112
                    L. W. Ellis   The International Motor Contest at
                                  Winnipeg . . . . . . . . . . . . . . . . 113--113
                 G. A. Thompson   A Plan for Converting the Sahara Desert
                                  into a Sea . . . . . . . . . . . . . . . 114--114
                Joseph B. Baker   What is a Hydroplane?  . . . . . . . . . 116--117
                  N. C. Twining   The Flight of Projectiles  . . . . . . . 118--118
                      Anonymous   Suggestions for the Workshop . . . . . . 119--119
                     R. D. Mock   Reducing Noise of Telephone Wires  . . . 119--119
                  H. C. Urbaner   A Cheap Pipe Wrench  . . . . . . . . . . 119--119
                    Henry Klotz   Center-line Gage . . . . . . . . . . . . 119--119
                    G. H. Ander   Unscrewing Nipples from Pipe Fittings    119--119
                  F. H. Jackson   Enlarging a Bore with an Auger . . . . . 119--119
                      Anonymous   The American Road Congress, Preserving
                                  Fresh Flowers, and more  . . . . . . . . 125--127

Scientific American
Volume 107, Number 7, August 17, 1912

                      Anonymous   Correspondence . . . . . . . . . . . . . 135--135
                      Anonymous   Inventions: Recently Patented Inventions 149--150
                      Anonymous   A Battleship with Cruiser Speed,
                                  Preventive Clinics in Industrial
                                  Establishments, and more . . . . . . . . 129--131
           Harry Chapin Plummer   Sulphur at Home and Abroad . . . . . . . 132--133
                    H. C. Price   Sugar Beet Industry of Germany . . . . . 134--134
              Frank P. Peterson   Squeezing Gasoline Out of Natural Gas    136--137
                  N. C. Twining   The Flight of Projectiles --- II . . . . 138--139
             Joseph W. Richards   High Temperatures and the Electric
                                  Furnace  . . . . . . . . . . . . . . . . 139--142
                 W. E. Woodward   The Trade-Mark as a Business Asset,
                                  Analysis of the Requirements for
                                  Registration. --- VI, and more . . . . . 143--146
                M. R. von Keler   Recent Research on Lubrication for
                                  Gasoline Engines, Temperance Beer, and
                                  more . . . . . . . . . . . . . . . . . . 146--148

Scientific American
Volume 107, Number 8, August 24, 1912

                      Anonymous   Correspondence: Correspondance . . . . . 159--159
Theodore M. R. von Kéler   Inventions New and Interesting . . . . . 164--165
                      Anonymous   Inventions: Recently Patented Inventions 166--166
                      Anonymous   Notes and Queries  . . . . . . . . . . . 167--167
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 167--167
                      Anonymous   Railway Speed and Safety, First Fruits
                                  of the ``Titanic'' Disaster, and more    154--155
                      Anonymous   The Aeroplane in the Military Maneuvers  156--156
       Thomas Commerford Martin   Teaching the Farmer How to Use
                                  Electricity  . . . . . . . . . . . . . . 157--158
               Wm. Hosea Ballou   The Harbors of the Pacific Coast . . . . 160--162
                  Norman Barden   A Simple Wire-winding Apparatus  . . . . 163--163
                C. C. Kiplinger   A Simple Microphone and Reproducer . . . 163--163
                  Norman Barden   Etching Glass with Hydrofluoric Acid . . 163--163
                   C. S. Meeker   A Home-made Hygrometer . . . . . . . . . 163--163
                Clarke E. Davis   Improved System of Filtering . . . . . . 163--163
                 W. E. Woodward   The Trade-mark as a Business Asset, The
                                  Elements of a Good Trade Mark --- VII,
                                  and more . . . . . . . . . . . . . . . . 165--165
        Leonard Keene Hirshberg   The New Serum Treatment of Bleeding and
                                  Hemorrhage, Can the Baser Metals be
                                  Changed to Gold?, and more . . . . . . . 168--170
                      Anonymous   Antagonistic Body Juices . . . . . . . . 171--171

Scientific American
Volume 107, Number 9, August 31, 1912

                      Anonymous   Correspondence: Correspondance . . . . . 179--179
           Henry Norris Russell   The Heavens in September . . . . . . . . 182--183
                      Anonymous   Inventions: Recently Patented Inventions 184--184
                      Anonymous   Relative Sea Strength of the United
                                  States, America's Need for an
                                  Aerotechnical Institute, and more  . . . 174--175
                Joseph B. Baker   The Junkers Oil Engine . . . . . . . . . 176--176
                   W. H. Ballou   The Celilo Canal . . . . . . . . . . . . 177--177
                      Anonymous   Instrumental Observation of the Sun's
                                  Heat, Night Letters in Italy, and more   177--177
                   C. H. Claudy   Burning Up Bad Roads to Make Good Ones,
                                  Salving the Steamer ``Jose'' . . . . . . 178--178
                  Jacques Boyer   Curious Megalithic Monuments of France   180--181
                   R. C. Benner   Smoke, the Destroyer . . . . . . . . . . 181--181
             T. M. R. von Keler   The de Lesseps ``Wind Wagon'', Black
                                  Lightning Flashes  . . . . . . . . . . . 183--183
                 W. E. Woodward   The Trade-mark as a Business Asset,
                                  Trade-mark Protection. --- VIII, and
                                  more . . . . . . . . . . . . . . . . . . 184--184
                      Anonymous   Feeding the Body with Electricity  . . . 186--186
                      Anonymous   Military Aviation Abroad . . . . . . . . 186--187


Scientific American
Volume 108, Number 1, January 4, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 7--7
                      Anonymous   Inventions New and Interesting . . . . . 12--13
                      Anonymous   Inventions: Recently Patented Inventions 14--14
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 18--18
                      Anonymous   Notes and Queries  . . . . . . . . . . . 19--19
                      Anonymous   Retrospect of the Year 1912  . . . . . . 2--3
                      Anonymous   A Parcels Post Tunnel Railway  . . . . . 4--4
                Wilhelm Ostwald   Scientific Management for Scientists . . 5--6
Theodore M. R. von Kéler   The Military Supremacy of the Air --- II 6--6
             Robert G. Skerrett   The Modern Automobile Torpedo  . . . . . 8--10
                   C. W. Nieman   Power of a Microscope  . . . . . . . . . 11--11
              Stanley P. McMinn   How to Remove Black Paper Strips from a
                                  Film Back  . . . . . . . . . . . . . . . 11--11
                   H. B. Dailey   An Interesting Static Electric Motor . . 11--11
                 Henry H. Riggs   To Fill a Barometer Tube . . . . . . . . 11--11
                 Philip Edelman   An Electrical Method for Glass Cutting   11--11
                      Anonymous   Progress of the Weather Bureau, The
                                  Respiration Calorimeter, and more  . . . 16--17
               Franklin O. King   Facing the Future Fearlessly . . . . . . 19--19

Scientific American
Volume 108, Number 10, March 8, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 223--223
                      Anonymous   Inventions New and Interesting . . . . . 228--228
                      Anonymous   Inventions: Recently Patented Inventions 230--231
                      Anonymous   Notes and Queries  . . . . . . . . . . . 231--231
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 231--231
                      Anonymous   The Proposed New Patent Office Building,
                                  Modern Argonauts of Science, and more    218--219
                   H. A. Kohman   Salt-rising Bread  . . . . . . . . . . . 220--220
                  Jacques Boyer   A New Method of Educating Deaf Mutes . . 221--221
                  Howard Greene   Left Side Steer and Center Control in
                                  Motor Cars . . . . . . . . . . . . . . . 221--221
              Alfred Gradenwitz   Guns for Submarines  . . . . . . . . . . 222--222
                      Anonymous   The Tallest Office Building in the World 224--225
                      Anonymous   What is Matter?  . . . . . . . . . . . . 226--226
                Alfred J. Lotka   In the World of Molecules, Optical
                                  Illusions; Trust not Your Eye, and more  226--227
               Frank C. Perkins   An Automatic Sharpener on an Electric
                                  Meat Slicer, An Engine that will Run on
                                  Several Fuels, and more  . . . . . . . . 228--229
                 Sidney G. Koon   Chemical Balance and the Fire Waste
                                  Problem  . . . . . . . . . . . . . . . . 234--235

Scientific American
Volume 108, Number 11, March 15, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 243--243
                      Anonymous   Inventions New and Interesting . . . . . 249--249
                      Anonymous   Inventions: Recently Patented Inventions 250--250
                      Anonymous   The Minority Views on the Oldfield Bill,
                                  Sir William White, and more  . . . . . . 238--239
             Stanley Yale Beach   The Curtiss Military Biplane . . . . . . 240--240
             Percival A. Hislam   The Growth of a Great Navy . . . . . . . 241--243
                      Anonymous   ``Uncle Sam's'' Appraisers of
                                  Merchandise  . . . . . . . . . . . . . . 244--245
                L. W. Ellis and   
                     W. R. Dray   Power from Kerosene  . . . . . . . . . . 246--247
                      Anonymous   Military Automobile Gun, Recent
                                  Improvements in the Storage Battery, and
                                  more . . . . . . . . . . . . . . . . . . 247--248
            Waldemar Kaempffert   The Industrial Need of Technically
                                  Trained Men --- I  . . . . . . . . . . . 252--254
                      Anonymous   Bee Insurance in Switzerland . . . . . . 259--259

Scientific American
Volume 108, Number 12, March 22, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 267--267
                      Anonymous   Inventions New and Interesting . . . . . 272--273
                      Anonymous   Inventions: Recently Patented Inventions 274--274
                      Anonymous   Notes and Queries  . . . . . . . . . . . 279--279
                      Anonymous   The Control of the Mississippi River,
                                  What the Rich Man Might Do for the
                                  Scholar, and more  . . . . . . . . . . . 262--264
                 Stanley Petman   Six Wheeled Omnibus  . . . . . . . . . . 264--264
                      Anonymous   Stereoscopic Views of Lightning  . . . . 265--265
                   C. F. Talman   ``The Snow of the Penitents''  . . . . . 265--266
                 R. G. Skerrett   Compressed Air as a Protection for
                                  Battleships, Revelations of the Boston
                                  Automobile Show, and more  . . . . . . . 266--266
          Richard Hamilton Byrd   Measuring the Flow of a Stream . . . . . 268--269
                      Anonymous   Plastic Art of Prehistoric Man . . . . . 270--270
                   J. N. Clarke   A New Type of Water Rheostat, The Effect
                                  of Static Electricity on Water . . . . . 271--271
                C. C. Kiplinger   Goniometer for Microscopes . . . . . . . 271--271
                    Guy Hubbard   A Direct Current Motor from a Telephone
                                  Ringer . . . . . . . . . . . . . . . . . 271--271
                      Anonymous   Gasoline and its Substitutes . . . . . . 276--277
                      Anonymous   The Chemistry of a Soldering Flux  . . . 278--278

Scientific American
Volume 108, Number 13, March 29, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 287--287
           Henry Norris Russell   The Heavens in April . . . . . . . . . . 290--290
                      Anonymous   Inventions New and Interesting . . . . . 292--292
                      Anonymous   Inventions: Recently Patented Inventions 293--293
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 293--293
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 294--294
                      Anonymous   Notes and Queries  . . . . . . . . . . . 298--298
                      Anonymous   Reorganization of the Navy Personnel,
                                  The New Haven Railroad Automatic Stop
                                  Competition, and more  . . . . . . . . . 282--283
                 Stanley Petman   Factory Methods of Testing Automobile
                                  Motors . . . . . . . . . . . . . . . . . 284--286
                      Anonymous   The Great Irrigation Project at
                                  Strawberry Valley  . . . . . . . . . . . 288--289
               Charles E. Foote   ``Standardizing'' Highway Construction   291--291
                    H. W. Perry   Disinterested Suggestions on Motor Truck
                                  Costs, Increasing the Efficiency of a
                                  Stage Line, and more . . . . . . . . . . 294--296

Scientific American
Volume 108, Number 14, April 5, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 309--309
                      Anonymous   Inventions New and Interesting . . . . . 317--318
                      Anonymous   Inventions: Recently Patented Inventions 318--318
                      Anonymous   Notes and Queries  . . . . . . . . . . . 328--328
                      Anonymous   Harnessing Nature?, The Society for
                                  Electrical Development, and more . . . . 304--305
          H. Bannerman-Phillips   Achievements of Military Aircraft  . . . 306--307
            Waldemar Kaempffert   Harnessing Nature  . . . . . . . . . . . 308--309
                C. J. Blanchard   Harnessing the Public Water Power  . . . 310--311
                Joseph B. Baker   Suspension Insulators Suitable for
                                  110,000-volt Transmission  . . . . . . . 312--313
                Carl Dienstbach   The Destruction of the German Dirigible
                                  ``L.Z.15'' . . . . . . . . . . . . . . . 313--313
                      Anonymous   Fighting the Chestnut Bark Disease . . . 314--314
                      Anonymous   The Recent Storms and Floods . . . . . . 315--316
                      Anonymous   Notes for Inventors, Legal Notes, and
                                  more . . . . . . . . . . . . . . . . . . 320--322
                      Anonymous   Latent Pressure in Rock Strata, The
                                  Problem of the World's Oil Supply, and
                                  more . . . . . . . . . . . . . . . . . . 324--327

Scientific American
Volume 108, Number 15, April 12, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 335--335
                      Anonymous   Inventions New and Interesting . . . . . 340--340
                      Anonymous   Inventions: Recently Patented Inventions 341--341
                      Anonymous   Notes and Queries  . . . . . . . . . . . 341--341
                      Anonymous   A Problem of National Proportions, The
                                  Thousand-foot Ship, and more . . . . . . 330--331
                      Anonymous   Fireproof Shelter for Refuse
                                  Receptacles, The Smokestack and the
                                  Rudder of the Imperator, and more  . . . 332--332
                      Anonymous   Safeguarding Machinery at Hawthorne  . . 333--334
                      Anonymous   The Recent Great Flood . . . . . . . . . 336--337
                 Stanley Petman   A Narrow-gage Self-propelled Passenger
                                  Coach  . . . . . . . . . . . . . . . . . 338--338
                   W. D. Graves   An Improvised Drill Press  . . . . . . . 339--339
                    George Rice   Chipping or Dissolving Scale from
                                  Cylinders  . . . . . . . . . . . . . . . 339--339
             William R. Inghram   Altering a Stethoscope to Locate Motor
                                  Knocks . . . . . . . . . . . . . . . . . 339--339
                     O. Ruehmer   Convenient Wood Steaming . . . . . . . . 339--339
            Rudolph Blankenburg   The Municipal Need of Technically
                                  Trained Men --- II, The Cleveland
                                  Chamber of Commerce and the Oldfield
                                  Bill, and more . . . . . . . . . . . . . 342--347

Scientific American
Volume 108, Number 16, April 19, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 355--355
                      Anonymous   Inventions New and Interesting . . . . . 360--361
                      Anonymous   Inventions: Recently Patented Inventions 362--362
                      Anonymous   Notes and Queries  . . . . . . . . . . . 366--366
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 367--367
                      Anonymous   Control Reservoirs and the Dayton Flood,
                                  Knowledge and Morals, and more . . . . . 350--351
               Frank C. Perkins   English Multicycles for the Blind, A
                                  Chapel on a Motor Truck, and more  . . . 352--353
                 W. J. L. Kiehl   Dogs for the Dutch Army, The Coking of
                                  Coal at Low Temperatures . . . . . . . . 353--353
           Genevieve Grandcourt   Discovery of the Infantile Paralysis
                                  Germ . . . . . . . . . . . . . . . . . . 354--354
                Alfred J. Lotka   Lightning Calculations, The Current
                                  Supplement, and more . . . . . . . . . . 354--354
                      Anonymous   Brucker's Balloon Trip Across the Ocean,
                                  Protection of Ocean Liners by
                                  Subdivision  . . . . . . . . . . . . . . 356--356
                 Edgar J. Banks   Babylonian Excavations by the Germans    357--357
                  Myron H. West   The Decline of Native Forest Trees in
                                  Cities, How the Indians Harvest Wild
                                  Rice . . . . . . . . . . . . . . . . . . 363--365

Scientific American
Volume 108, Number 17, April 26, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 375--375
                      Anonymous   Inventions New and Interesting . . . . . 380--380
                      Anonymous   Inventions: Recently Patented Inventions 381--381
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 382--382
                      Anonymous   Notes and Queries  . . . . . . . . . . . 386--386
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 387--387
                      Anonymous   Foreign Dreadnought Developments, Life
                                  Without Heat, and more . . . . . . . . . 370--371
                   Ross Babcock   End Dump Bodies for Commercial Vehicles  372--372
                      Anonymous   The Elements on the Stage  . . . . . . . 373--374
                 R. G. Skerrett   Russia's Submarine Cruiser . . . . . . . 376--376
              Noble E. Whitford   New York State Barge Canal . . . . . . . 377--377
                   Ross Babcock   A Gearless Automobile Differential . . . 380--380
                 John R. Eustis   Overloading the Motor  . . . . . . . . . 385--385

Scientific American
Volume 108, Number 18, May 3, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 397--397
           Henry Norris Russell   The Heavens in May . . . . . . . . . . . 404--408
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 422--423
                      Anonymous   Notes and Queries  . . . . . . . . . . . 424--424
                      Anonymous   The Human Factor in Safe Transportation,
                                  Another Mad Patent Bill, and more  . . . 392--393
                  Jacques Boyer   The French Sardine Industry, A Safety
                                  Automatic Train Stop, and more . . . . . 394--396
          Charles Whiting Baker   Floods and the Problems of River
                                  Regulation . . . . . . . . . . . . . . . 398--401
                      Anonymous   The Hydro-Aeroplane Meet at Monaco . . . 402--403
             Arthur H. J. Keane   Artificial Limbs: Ancient and Modern, A
                                  New Solvent for Compressed Acetylene . . 403--403
              George Brockholst   The Shoes You Wear . . . . . . . . . . . 410--421

Scientific American
Volume 108, Number 19, May 10, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 431--433
                      Anonymous   Inventions New and Interesting . . . . . 436--436
                      Anonymous   Inventions: Recently Patented Inventions 437--437
                      Anonymous   Science and Journalism, Social Problems
                                  and Eugenics, and more . . . . . . . . . 426--427
                  J. W. Overend   Saving a Cathedral with a Diver  . . . . 428--428
               A. A. Somerville   Air Resistance to Falling Bodies,
                                  Moor-burning in Germany, and more  . . . 429--430
             Percival A. Hislam   The First Triple-Turreted Warship  . . . 434--434
                      John Phin   Safety-match Cough Lozenges  . . . . . . 435--435
                      Anonymous   Dry Batteries and How to Make Them . . . 435--435
                  Norman Barden   Hints for Young Microscopists  . . . . . 435--435
                    A. J. Himes   The Industrial Need of Technically
                                  Trained Men --- III  . . . . . . . . . . 438--440
                      Anonymous   Engineering in the Alps  . . . . . . . . 443--443

Scientific American
Volume 108, Number 2, January 11, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 31--31
                      Anonymous   Inventions: Recently Patented Inventions 56--58
                      Anonymous   Grueling Tests for Artillery, Showing
                                  Visitors how Cars are Made, and more . . 25--27
                 Walter Baunard   The Future Car . . . . . . . . . . . . . 28--30
                     E. R. Hall   The Making of a Pneumatic Automobile
                                  Tire . . . . . . . . . . . . . . . . . . 32--35
                Francis Miltoun   Europe's Good Roads  . . . . . . . . . . 36--37
                   H. A. Morris   Will the Automobile be Driven by
                                  Kerosene?  . . . . . . . . . . . . . . . 38--38
                      Anonymous   Clever Devices that Help Motorists . . . 39--39
Theodore M. R. von Kéler   What Gasoline Pleasure Car Can I Buy?    44--44
                      Anonymous   What Electric Pleasure Car Can I Buy?    46--46
                      Anonymous   The Trend in Automobile Construction . . 46--50
                 P. H. McKilwin   Partnership Use of a Motor Car, Special
                                  Resources of American Libraries  . . . . 54--55

Scientific American
Volume 108, Number 20, May 17, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 451--451
                      Anonymous   Inventions New and Interesting . . . . . 456--456
                      Anonymous   Inventions: Recently Patented Inventions 458--458
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 462--462
                      Anonymous   Notes and Queries  . . . . . . . . . . . 463--463
                      Anonymous   Rothamsted Up to Date, The Cholera
                                  Granary, and more  . . . . . . . . . . . 446--447
              Walter L. Beasley   Training the Sightless . . . . . . . . . 448--448
                Carl Dienstbach   A Journey in a Zeppelin  . . . . . . . . 449--450
        Charles Fitzhugh Talman   A Copper El Dorado in Mid-Africa --- The
                                  Katanga  . . . . . . . . . . . . . . . . 450--450
             Percival A. Hislam   Salving the ``Lutine'' . . . . . . . . . 450--451
              Alfred Gradenwitz   The Lotschberg or Bernese Alpine Railway 452--453
                      Anonymous   Thinking Horses  . . . . . . . . . . . . 454--455
                Walter Isendahl   A Phonographic Alarm Clock, Some Expired
                                  Patents, and more  . . . . . . . . . . . 456--457
                      Anonymous   The Gasoline and Kerosene Situation  . . 459--461

Scientific American
Volume 108, Number 21, May 24, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 471--471
                      Anonymous   Inventions New and Interesting . . . . . 476--477
                      Anonymous   Inventions: Recently Patented Inventions 478--478
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 483--483
                      Anonymous   Notes and Queries  . . . . . . . . . . . 483--483
                      Anonymous   Shall we Retard, Divert, or Confine Our
                                  Flood Waters?, Personal Error and
                                  Efficiency Engineering, and more . . . . 466--467
             H. R. Van Deventer   A Telephone Transmitter without a
                                  Mouthpiece . . . . . . . . . . . . . . . 468--468
                  Jacques Boyer   The Anesthetizing Machine of Prof.
                                  Dubois, A New Theory of Sleep  . . . . . 468--468
                      Anonymous   Seeing Under Water . . . . . . . . . . . 469--470
        Charles Fitzhugh Talman   ``Moon-Farming'', Gold-tin Cans  . . . . 471--471
                Putnam A. Bates   Agriculture, Electricity and Irrigation  472--472
                    H. D. Jones   Franklin Institute Treasures . . . . . . 473--473
           Harry Chapin Plummer   Improving a Harbor of Curaçao . . . . . . 474--475
        William Atherton Du Puy   How to Sell Inventions . . . . . . . . . 476--477
                      Anonymous   Rehabilitating the Roman Campagna, The
                                  Alpenglow, and more  . . . . . . . . . . 481--482

Scientific American
Volume 108, Number 22, May 31, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 491--491
           Henry Norris Russell   The Heavens in June  . . . . . . . . . . 494--494
                      Anonymous   Inventions New and Interesting . . . . . 496--497
                      Anonymous   Inventions: Recently Patented Inventions 498--498
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 499--499
                 Morris A. Hall   The Motor-Driven Commercial Vehicle  . . 500--500
                      Anonymous   Science and the Cost of Living, Cold
                                  Light, and more  . . . . . . . . . . . . 486--487
                      Anonymous   A Hydraulic Variable Speed Gear  . . . . 488--488
                  Jacques Boyer   Dussaud's ``Cold Light'' . . . . . . . . 489--489
                      Anonymous   Plans for the Disposal of New York's
                                  Sewage . . . . . . . . . . . . . . . . . 490--490
                      Anonymous   Recent Assaults Upon the Patent System:
                                  What they Mean to Manufacturers, The
                                  Current Supplement . . . . . . . . . . . 491--491
                Walter Isendahl   A New Parseval Airship, The Good Roads
                                  Movement, and more . . . . . . . . . . . 492--492
                   Oscar Parkes   The Brazilian Battleship ``Rio de
                                  Janeiro'', Cork Paper and its Uses . . . 492--493
                  H. D. Chapman   How to Measure Closely with Ordinary
                                  Calipers . . . . . . . . . . . . . . . . 495--495
        William Grötzinger   A Toolholder for Grindstones . . . . . . 495--495
                   Joe V. Romig   Jig for Turning up Rough-threaded Bolts  495--495
                   Joseph Vaghi   Hint for Boring a Straight Hole  . . . . 495--495
                 Fremont Leland   Rig for a Two-handed Saw . . . . . . . . 495--495
                 I. B. Spittell   Device for Holding Screws when Filing
                                  them Shorter . . . . . . . . . . . . . . 495--495
                    Fred Horner   Two Drilling Kinks . . . . . . . . . . . 495--495
               George W. Colles   Mending a Broken Steel Tape  . . . . . . 495--495
                      Anonymous   An Automobile Field Kitchen, Tar Bonded
                                  Roads in Cincinnati  . . . . . . . . . . 500--500
        Leonard Keene Hirshberg   Don, the ``Talking'' Dog, Naphthalin as
                                  a Binder for Anthracite Briquettes . . . 502--503

Scientific American
Volume 108, Number 23, June 7, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 513--513
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 531--531
                      Anonymous   Notes and Queries  . . . . . . . . . . . 532--532
                      Anonymous   Price Maintenance and the Supreme Court
                                  Decision, Expedition to the Amazon, and
                                  more . . . . . . . . . . . . . . . . . . 508--509
                      Anonymous   The Screw Spike Versus the Cut Spike . . 510--511
             Robert G. Skerrett   Making the Aeroplane Safe by the
                                  Gyroscopic Stabilizer, Aeroplane
                                  Accidents  . . . . . . . . . . . . . . . 511--512
              Charles V. Slocum   Ferro-titanium Alloy in the Manufacture
                                  of Iron and Steel, What are the Ten
                                  Greatest Inventions of Our Time, and
                                  Why? . . . . . . . . . . . . . . . . . . 512--512
                    A. C. Gault   Photography from a Kite, The Submarine
                                  Violin . . . . . . . . . . . . . . . . . 514--514
                      Anonymous   A New Way of Making Artificial Diamonds,
                                  A Bed in the Open for City Dwellers, and
                                  more . . . . . . . . . . . . . . . . . . 515--515
                      Anonymous   Safety in Travel as Affected by the
                                  Steel Rail . . . . . . . . . . . . . . . 516--517
                  Lynn W. Ellis   The Problem of the Small Farm Tractor, A
                                  Safety Parachute for Airmen, and more    518--520
                      Anonymous   Notes for Inventors  . . . . . . . . . . 522--522
                      Anonymous   The Government Document Office,
                                  Industrial Alcohol . . . . . . . . . . . 529--530

Scientific American
Volume 108, Number 24, June 14, 1913

                      Anonymous   Inventions New and Interesting . . . . . 544--544
                      Anonymous   Inventions: Recently Patented Inventions 546--546
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 551--551
                      Anonymous   The Problem of the Small Tractor, The
                                  Japanese and the American Navies, and
                                  more . . . . . . . . . . . . . . . . . . 534--535
              Alfred Gradenwitz   Tests on a 10,000 Horse-power Föttinger
                                  Transformer  . . . . . . . . . . . . . . 536--536
                Percival Hislam   The Japanese and American Navies
                                  Compared . . . . . . . . . . . . . . . . 537--537
          H. Bannerman-Phillips   Mining the Air with Balloon Torpedoes    538--538
              Carl Hawes Butman   The Langley Aerodynamical Laboratory . . 538--538
            Clarence T. Hubbard   ``The Mysterious Problem'', The Current
                                  Supplement, and more . . . . . . . . . . 538--538
                  H. C. Plummer   A Project to Raise Decatur's Frigate the
                                  ``Philadelphia'', The American Road
                                  Congress, and more . . . . . . . . . . . 539--539
             Charles F. Bolduan   Bacteriology and Your Health . . . . . . 540--541
                Gustave Michaud   Shape and Sound in Whistles  . . . . . . 542--542
             C. Fitzhugh Talman   Optical Phenomena Seen from Balloons,
                                  Nomenclature of the Polar Regions  . . . 542--542
               T. J. Litle, Jr.   Night Golf Putting Course, Automobile
                                  Traction in Italy  . . . . . . . . . . . 543--543
                  Jacques Boyer   An Intensifier for Telephone
                                  Transmission . . . . . . . . . . . . . . 544--545
                      Anonymous   The Supreme Court of the United States
                                  on Price Maintenance . . . . . . . . . . 545--545
              John Ritchie, Jr.   The Industrial Need of Technically
                                  Trained Men --- IV . . . . . . . . . . . 548--548

Scientific American
Volume 108, Number 25, June 21, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 559--559
                      Anonymous   Inventions New and Interesting . . . . . 564--564
                      Anonymous   Inventions: Recently Patented Inventions 565--565
                      Anonymous   Notes and Queries  . . . . . . . . . . . 570--570
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 571--571
                      Anonymous   The Need of an Automatic Stop,
                                  Agriculture in the High Schools, and
                                  more . . . . . . . . . . . . . . . . . . 554--555
       Charlton Lawrence Edholm   Thirty-six Hours Under Water . . . . . . 556--556
              Wallace W. Atwood   A New Way of Studying Astronomy  . . . . 557--558
                      Anonymous   To the South Pole with the Cinematograph 560--561
                      Anonymous   The Greatest Steamer in the World  . . . 562--563
                      Anonymous   Blasting With Liquid Air . . . . . . . . 564--564
            Waldemar Kaempffert   Price Maintenance and Modern
                                  Merchandising --- I  . . . . . . . . . . 566--566
                      Anonymous   A New Road Material, A Septuagenarian
                                  Arctic Explorer, and more  . . . . . . . 569--569

Scientific American
Volume 108, Number 26, June 28, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 579--579
           Henry Norris Russell   The Heavens in July  . . . . . . . . . . 582--582
              Alfred Gradenwitz   Inventions New and Interesting . . . . . 584--584
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 586--586
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 589--590
                      Anonymous   Horse Living Versus Horse Power, A
                                  Simple Parcel Post Wanted, and more  . . 574--575
        Charles Fitzhugh Talman   Lightning-Prints . . . . . . . . . . . . 576--576
                     F. D. Bell   Manufacturing Problems . . . . . . . . . 577--578
              J. Bernard Walker   Maiden Voyage of the ``Imperator'', The
                                  Articles on Price Maintenance, and more  578--579
                      Anonymous   Melting Metal Under Water  . . . . . . . 580--580
             W. L. Morrison and   
                  A. G. Kessler   Raising the United States Brig
                                  ``Niagara''  . . . . . . . . . . . . . . 580--580
                      Anonymous   Sand Dunes . . . . . . . . . . . . . . . 581--581
                    Henry Klotz   Some Suggestions for the Handy Man . . . 583--583
                       F. C. I.   Some Automobile Repairs  . . . . . . . . 583--583

Scientific American
Volume 108, Number 3, January 18, 1913

                      Anonymous   Notes and Queries  . . . . . . . . . . . 74--74
             Charles H. Spencer   The Motor-Driven Commercial Vehicle  . . 76--77
                      Anonymous   Comparing the Incomparable, In Defense
                                  of Brain Property, and more  . . . . . . 62--64
                      Anonymous   A Successful Automatic Train-stop  . . . 65--66
                    H. W. Perry   Teams and Motor Trucks Compared,
                                  Brontidi . . . . . . . . . . . . . . . . 66--66
                      Anonymous   A New Industrial Process for
                                  Manufacturing Oxygen . . . . . . . . . . 66--66
                      Anonymous   The N.Y., N.H. and Hartford Railway's
                                  Automatic-stop Prize . . . . . . . . . . 67--67
                      Anonymous   Rusting of Iron, Reconstruction of the
                                  ``Olympic'', and more  . . . . . . . . . 67--67
                      Anonymous   New Evidence of the Origin of Man  . . . 68--69
                      Anonymous   New Hangars for Military Uses  . . . . . 69--70
              John Ritchie, Jr.   Cost Estimates of Horse and Motor
                                  Trucks, Testing Eggs by Roentgen Rays    70--71
         M. R. von Kéler   What Motor Truck would Suit me Best? . . 72--72
                Arthur C. Brady   Abuse of Good Roads, Motor Truck Queries
                                  and Answers  . . . . . . . . . . . . . . 77--78

Scientific American
Volume 108, Number 4, January 25, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 87--87
                      Anonymous   Inventions: Recently Patented Inventions 94--96
                      Anonymous   Notes and Queries  . . . . . . . . . . . 98--99
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 100--101
                      Anonymous   Amend the Panama Canal Act,
                                  Mis-statements in the Oldfield Report,
                                  and more . . . . . . . . . . . . . . . . 82--83
                      Anonymous   Micro-motion Study . . . . . . . . . . . 84--84
              Frederic R. Honey   Morning and Evening Stars for 1913 . . . 85--86
                      Anonymous   An Egyptian Solar Power Plant  . . . . . 88--88
                      Anonymous   ``The Whip'' and its Mechanism . . . . . 89--89
                      Anonymous   Climbing a Magnetically Supported Chain,
                                  His Mattress a Life Raft, and more . . . 90--93
                      Anonymous   The Mysteries of Artesian Wells, Ozone
                                  as a Rapid Paint Dryer . . . . . . . . . 103--103

Scientific American
Volume 108, Number 5, February 1, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 113--113
           Henry Norris Russell   The Heavens in February  . . . . . . . . 116--116
                      Anonymous   Inventions: Recently Patented Inventions 121--122
                      Anonymous   Notes and Queries  . . . . . . . . . . . 129--129
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 130--131
                  Jacques Boyer   The Rock-removing Machinery of the Suez
                                  Canal, Largest Embankment in Germany,
                                  and more . . . . . . . . . . . . . . . . 107--109
                   L. V. Redman   Soil Analysis and Seed Selection . . . . 110--110
                 Homer C. Price   Increasing the Food Supply of a Nation   111--112
                 Philip S. Rose   Economies of the Farm Tractor  . . . . . 114--115
              Alfred Gradenwitz   X-ray Pictures of Micro-organisms  . . . 115--115
                      Anonymous   The Fourth Award of the
                                  \booktitleScientific American Medal  . . 117--117
                 Philip S. Rose   Gasoline and Oil Power on the Farm . . . 120--120
             Charles M. Carroll   Success of the County Agriculturist
                                  Plan, The Green Tarnish on Lead Pipes    124--126
                   C. H. Claudy   Coming Army Aeroplanes, Agriculture at
                                  Columbia University, and more  . . . . . 127--128
                      Anonymous   Clarifying Beer by Gelatinous Silica,
                                  The Mississippi as a Conveyer of
                                  Material . . . . . . . . . . . . . . . . 128--128

Scientific American
Volume 108, Number 6, February 8, 1913

                      Anonymous   Inventions New and Interesting . . . . . 144--144
                      Anonymous   Inventions: Recently Patented Inventions 145--145
                      Anonymous   Col. Goethals on the Culebra Slides,
                                  State Versus Federal Control of the
                                  National Forests, and more . . . . . . . 134--138
                   Oscar Parkes   New Types for the Japanese Navy,
                                  Dussaud's ``Cold Light'' . . . . . . . . 138--138
                 R. D. Gatewood   Shall we Build Battle Cruisers?  . . . . 139--140
                      Anonymous   The Enlargement of the Aswan Dam . . . . 140--140
                      Anonymous   The Altamira Wall Paintings  . . . . . . 142--142
        William Grötzinger   Notched Lathe Dog, Straightening a Back
                                  Saw  . . . . . . . . . . . . . . . . . . 143--143
               Albert F. Bishop   Chair Making One Hundred Years Age,
                                  Lettering Triangle . . . . . . . . . . . 143--143
                   W. D. Graves   Sharpening Edge Tools  . . . . . . . . . 143--143
                       G. W. D.   Strap Hinges vs. T-Hinges  . . . . . . . 143--143
                  H. D. Chapman   Cutting Keyways with a Lathe, Making a
                                  Socket Wrench  . . . . . . . . . . . . . 143--143
                   E. O. Carter   Automatic Fog Gun  . . . . . . . . . . . 144--144

Scientific American
Volume 108, Number 7, February 15, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 155--155
                      Anonymous   Inventions New and Interesting . . . . . 160--160
                      Anonymous   Inventions: Recently Patented Inventions 161--163
                      Anonymous   Notes and Queries  . . . . . . . . . . . 167--167
                      Anonymous   A Foolish Measure, New York Pier Problem
                                  Settled, and more  . . . . . . . . . . . 150--151
                      Anonymous   Seeing Sound . . . . . . . . . . . . . . 152--153
                      Anonymous   The Slit Camera, Popular Ignorance About
                                  Our Common Woods, and more . . . . . . . 153--154
                C. E. Fairbanks   The Art of Making Bronze Statues . . . . 156--157
             Owen M. de Munnick   Parabolical Overhead Wiring for Electric
                                  Roads  . . . . . . . . . . . . . . . . . 158--158
               Wilhelm Thoerner   A Comparison Microscope, The Mono-rail
                                  Sled, and more . . . . . . . . . . . . . 158--159
            John W. N. Sullivan   The Evolution of Worlds  . . . . . . . . 164--165
                 Stanley Petman   A \$100,000 Prize for a Gasoline
                                  Substitute . . . . . . . . . . . . . . . 165--166
                      Anonymous   The Current Supplement . . . . . . . . . 166--166

Scientific American
Volume 108, Number 8, February 22, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 174--174
                      Anonymous   Inventions New and Interesting . . . . . 180--180
                      Anonymous   Inventions: Recently Patented Inventions 181--181
                   J. R. Eustis   The Motor-Driven Commercial Vehicle  . . 182--182
                      Anonymous   Notes and Queries  . . . . . . . . . . . 187--187
                      Anonymous   A Standard for Safe Railroad Travel,
                                  Comparative Cost of Direct and Single
                                  Phase Electrification of Steam
                                  Railroads, and more  . . . . . . . . . . 170--172
                      Anonymous   Our Latest Battleship ``Pennsylvania''   173--173
                      Anonymous   The Scott Expedition and its Tragic End  175--178
             Charles M. Carroll   Painting the Wonders Under the Sea . . . 179--179
                 Jean E. Blaise   What Motor Trucks have Saved for a
                                  Brewer, Cost of Gasoline Truck Service,
                                  and more . . . . . . . . . . . . . . . . 182--184

Scientific American
Volume 108, Number 9, March 1, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 197--197
           Henry Norris Russell   The Heavens in March . . . . . . . . . . 203--203
                      Anonymous   Inventions: Recently Patented Inventions 206--206
                      Anonymous   Notes and Queries  . . . . . . . . . . . 216--216
                      Anonymous   The Naval Reserve Movement, Morse
                                  Signals from London to New York, and
                                  more . . . . . . . . . . . . . . . . . . 192--193
                H. S. McCormack   Keeping Books by Machine . . . . . . . . 194--196
                      Anonymous   Creating a Subterranean River Ninety
                                  Miles in Length  . . . . . . . . . . . . 198--200
                      Anonymous   Supplying a Metropolis with Mountain
                                  Water  . . . . . . . . . . . . . . . . . 201--202
                      Anonymous   Queer Automobile Bodies  . . . . . . . . 204--205
                  H. J. Archard   Friedmann's New Tuberculosis Remedy, The
                                  New York Motor Boat Show, and more . . . 210--215


Scientific American
Volume 109, Number 1, July 5, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 7--7
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 15--15
                      Anonymous   Recently Patented Inventions . . . . . . 16--18
                      Anonymous   Legal Notes  . . . . . . . . . . . . . . 19--19
                      Anonymous   Notes and Queries  . . . . . . . . . . . 23--23
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 24--24
                      Anonymous   Nature Completes the Panama Canal,
                                  Reversing the Locomotive, and more . . . 2--2
                      Anonymous   Engineering  . . . . . . . . . . . . . . 3--3
                      Anonymous   Science  . . . . . . . . . . . . . . . . 3--3
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 3--3
                      Anonymous   The Beehive and By-product Oven in Coke
                                  Production . . . . . . . . . . . . . . . 4--4
          H. Bannerman-Phillips   Teaching Soldiers How to Shoot . . . . . 5--6
                      Anonymous   Some Novel Uses of Compressed Air  . . . 8--9
                     R. H. Byrd   Fuel Production in the United States . . 10--12
                 J. J. O'Connor   The Genealogy of the Motorcycle  . . . . 13--14
            Waldemar Kaempffert   Price Maintenance and Modem
                                  Merchandising --- II . . . . . . . . . . 20--21
                      Anonymous   Observations of the Companions of Sirius
                                  and Procyon, The Current Supplement  . . 22--22

Scientific American
Volume 109, Number 10, September 6, 1913

           Henry Norris Russell   The Heavens in September . . . . . . . . 187--187
                      Anonymous   Inventions New and Interesting . . . . . 192--192
                      Anonymous   Inventions: Recently Patented Inventions 196--196
                      Anonymous   Notes and Queries  . . . . . . . . . . . 198--198
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 198--198
                      Anonymous   Commercial and Military Value of the
                                  Intra-coastal Waterway, State vs.
                                  National Control of Public Forests, and
                                  more . . . . . . . . . . . . . . . . . . 176--177
              Logan Waller Page   Automobiles and Improved Roads . . . . . 178--178
           P. R. Radosavljevich   Efficiency in Learing  . . . . . . . . . 179--180
                  J. F. Hellweg   Emergency Repairs to a Destroyer, A
                                  Railway in Iceland, and more . . . . . . 180--180
              Frederick P. Fish   Patents and Modern Industrial Conditions 181--181
           Harry Chapin Plummer   St. Lawrence Ship Channel Improvements   182--183
                      Anonymous   The Cape Cod Canal . . . . . . . . . . . 184--185
              S. Leonard Bastin   Can a Plant Feel Pain? . . . . . . . . . 186--186
                    L. W. Ellis   The Winnipeg Tractor Trials  . . . . . . 201--204

Scientific American
Volume 109, Number 11, September 13, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 211--211
                      Anonymous   Inventions New and Interesting . . . . . 215--215
                      Anonymous   Inventions: Recently Patented Inventions 216--216
                      Anonymous   Notes and Queries  . . . . . . . . . . . 219--219
                      Anonymous   Reaping the Whirlwind, The Natural Time
                                  Unit in the Organic World, and more  . . 206--208
                    G. F. Weeks   How Mexican Rebels Destroy Railways and
                                  Bridges  . . . . . . . . . . . . . . . . 209--210
                  C. Dienstbach   The Military Value of Low Flying, The
                                  Two-speed Rear Axle, and more  . . . . . 210--210
                      Anonymous   Opening of the World's Greatest Power
                                  Plant  . . . . . . . . . . . . . . . . . 212--213
                      Anonymous   An Encyclopaedia on the Card-index
                                  System, Military Aviation in Italy, and
                                  more . . . . . . . . . . . . . . . . . . 213--214
                      Anonymous   The Current Supplement . . . . . . . . . 217--217
              Chester W. Larner   The Industrial Need of Technically
                                  Trained Men. --- VII . . . . . . . . . . 218--218

Scientific American
Volume 109, Number 12, September 20, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 227--227
                      Anonymous   Inventions: Recently Patented Inventions 232--232
                      Anonymous   Notes and Queries  . . . . . . . . . . . 235--235
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 235--235
                      Anonymous   Sir Oliver Lodge's Address, Taming the
                                  Chagres River, and more  . . . . . . . . 222--223
                      Anonymous   The Steel Car as a Life Saver  . . . . . 224--224
                      Anonymous   The First Diesel Locomotive  . . . . . . 225--226
                  Jacques Boyer   Sawing a Bridge with a Wire  . . . . . . 228--230
              Herbert T. Walker   The Centenary of a Famous Locomotive,
                                  Building Foundations in Japan, and more  230--231
                      Anonymous   Fighting the Plague with Soap and
                                  Petroleum  . . . . . . . . . . . . . . . 234--234

Scientific American
Volume 109, Number 13, September 27, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 243--243
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 248--248
                      Anonymous   Notes and Queries  . . . . . . . . . . . 251--251
                      Anonymous   The Third American Road Congress, Motor
                                  Truck Extension of Railroads, and more   238--239
                      Anonymous   Turning Somersaults with an Aeroplane    240--240
          William Leslie French   Handwriting and Human Efficiency . . . . 241--242
                      Anonymous   Progress of the New Harlem River Tunnel  244--245
                  I. B. Spittel   Handy Vise Tool  . . . . . . . . . . . . 246--246
                      ``Delta''   Oxidized Carbon Plate, An Electrolytic
                                  Rectifier for the Garage, and more . . . 246--247
                Robert L. Niles   The Motor Truck and the Freight
                                  Terminal, ``Toppings'' for Motor Fuel,
                                  and more . . . . . . . . . . . . . . . . 248--250

Scientific American
Volume 109, Number 14, October 4, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 259--259
           Henry Norris Russell   The Heavens in October . . . . . . . . . 264--264
                      Anonymous   Inventions New and Interesting . . . . . 268--268
                      Anonymous   Inventions: Recently Patented Inventions 269--269
                      Anonymous   The New Argentine Dreadnought
                                  ``Rivadavia'', Garros' Flight Across the
                                  Mediterranean, and more  . . . . . . . . 253--255
               Thomas J. Keenan   How Trees are Converted into Paper . . . 256--258
                Herbert T. Wade   How the Government Tests Paper . . . . . 260--260
                      Anonymous   Recent Improvements in the Refrigerating
                                  Industry . . . . . . . . . . . . . . . . 261--261
                      Anonymous   A Car Designed for the New Subway  . . . 262--262
                      Anonymous   A New Mail Carrying Railway  . . . . . . 263--263
                      Anonymous   Cyclecars --- American and Foreign . . . 265--266
                Carl Dienstbach   The Wreck of the First German Naval
                                  Airship ``L1'', An Emergency Dark Room,
                                  and more . . . . . . . . . . . . . . . . 266--267
               Frank C. Perkins   Apparatus for Testing Mine Gases, Novel
                                  Multiple Drill Head for Roller Bearings,
                                  and more . . . . . . . . . . . . . . . . 268--268
                  Robert Donald   The Newspaper of the Future  . . . . . . 274--275
               Willard F. Smith   India Paper and its Uses . . . . . . . . 275--276

Scientific American
Volume 109, Number 15, October 11, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 283--283
                      Anonymous   Inventions: Recently Patented Inventions 289--290
                      Anonymous   Notes and Queries  . . . . . . . . . . . 295--295
                      Anonymous   A Destroyer of Destroyers, The
                                  Interstate Commerce Commission and
                                  safety on Railroads, and more  . . . . . 278--279
                      Anonymous   The Biggest Flying Machine in the World  280--280
                      Anonymous   Constructing a Building Upside Down  . . 281--281
          H. Bannerman-Phillips   Night Attacks in Modern Warfare  . . . . 282--282
                      Anonymous   Interesting British Locomotive
                                  Development, Ocean-going Submarines, and
                                  more . . . . . . . . . . . . . . . . . . 284--284
                      Anonymous   Mechanical Baseball Bulletin Boards  . . 285--286
                Robert Grimshaw   Rapid Telephotography, The Food and
                                  Drugs Act Guaranty Label, and more . . . 286--286
                      Anonymous   Electrified Chickens --- Electricity as
                                  a Growth Stimulator, A Warning Against
                                  Fraudulent Radioactive Water, and more   287--288
                      Anonymous   A New Bookbinding Device . . . . . . . . 291--291
                Carl Dienstbach   Progress in Landing Zeppelins, Removing
                                  the ``Shine'' from Woolen Garments, and
                                  more . . . . . . . . . . . . . . . . . . 291--291
                 A. W. Johnston   The Industrial Need of Technically
                                  Trained Men --- VIII . . . . . . . . . . 292--292

Scientific American
Volume 109, Number 16, October 18, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 302--302
                      Anonymous   Inventions: Recently Patented Inventions 308--308
           Harry Chapin Plummer   Cutting Down the Pittsburgh ``Hump''
                                  District . . . . . . . . . . . . . . . . 297--297
                      Anonymous   A Dangerous Bill, Dual Personality in
                                  Court, Painting the Town With
                                  Phosphorescent Paint, and more . . . . . 298--299
          Henry Harrison Suplee   A Pantagraph Which Draws on Steel With a
                                  Point of Flame . . . . . . . . . . . . . 300--300
                      Anonymous   Gasoline Slot Machine, Combined Piano
                                  Player and Talking Machine . . . . . . . 300--300
                      Anonymous   Pégoud's Remarkable Performances  . . . . 301--301
            Donald F. MacDonald   Earthquakes and the Panama Canal . . . . 303--305
          Henry Harrison Suplee   Rudolf Diesel: An Appreciation . . . . . 306--306
                      Anonymous   Transporting a 46-Ton Cover Plate  . . . 307--307
                      Anonymous   How One Express Company Proposes to
                                  Compete With the Parcels Post  . . . . . 309--310
                  C. Dienstbach   Important Progress in Airships, The
                                  Current Supplement, and more . . . . . . 310--312

Scientific American
Volume 109, Number 17, October 25, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 319--319
                   Ross Babcock   The Motor-Driven Commercial Vehicle  . . 324--326
                   John Jay Ide   The Race for the Gordon Bennett Cup,
                                  Enforcing the Migratory Bird
                                  Regulations, and more  . . . . . . . . . 313--315
                   Jaeque Boyer   Are Men better Typists than Women? . . . 316--316
                      Anonymous   Turbine Reduction Gear in Relation to
                                  Battleship Fighting Power  . . . . . . . 317--318
                  C. Dienstbach   Repelling Aeroplanes from the Ground,
                                  Panama Hat Industry in the Philippines,
                                  and more . . . . . . . . . . . . . . . . 319--319
                      Anonymous   The Passaic Valley Sewer . . . . . . . . 320--321
          H. Bannerman-Phillips   The Work of Aircraft in the French
                                  Maneuvers, 1913  . . . . . . . . . . . . 322--323

Scientific American
Volume 109, Number 18, November 1, 1913

           Henry Norris Russell   The Heavens in November  . . . . . . . . 341--341
                      Anonymous   Inventions: Recently Patented Inventions 347--348
                      Anonymous   A Standard of Safe Railroad Travel,
                                  Magnitude of the New Subway System, and
                                  more . . . . . . . . . . . . . . . . . . 332--333
                      Anonymous   Fastest Vessel in the World, The Most
                                  Rational Source of Power . . . . . . . . 334--334
                      Anonymous   How Inventors Use Ultra-violet Rays  . . 335--336
               William I. Wyman   Invention Contest First Prize Article    337--340
                Carl Dienstbach   Lessons of the Disaster of the ``L.II''  340--340
                      Anonymous   The Blowing Up of Gamboa Dike  . . . . . 342--343
          Henry Harrison Suplee   The Principle of Reversal  . . . . . . . 344--344
                  Jacques Boyer   An Electric Hotel in Paris . . . . . . . 345--345
                      Anonymous   Metal Plating With the Air Brush . . . . 346--346
                      Anonymous   A Cinematograph Hand Camera  . . . . . . 346--346
                      Anonymous   Legal Notes, Notes for Inventors . . . . 348--348
                      Anonymous   Air Scouting at the Italian Maneuvers,
                                  The South American Meat Industry . . . . 355--356

Scientific American
Volume 109, Number 19, November 8, 1913

                      Anonymous   Inventions: Recently Patented Inventions 369--369
           Frederick C. Coleman   The Electrically-driven Vessel
                                  ``Tynemount'', \booktitleScientific
                                  American's Contribution to the
                                  Development of the Racing Aeroplane, and
                                  more . . . . . . . . . . . . . . . . . . 357--359
                      Anonymous   The Jungfrau Railway . . . . . . . . . . 360--360
                      Anonymous   The Daniel Boone Idea in Education . . . 361--362
              J. Bernard Walker   The Fire Control Platform of a United
                                  States Battleship  . . . . . . . . . . . 363--363
               Henry Z. Osborne   The Completion of the Los Angeles
                                  Aqueduct . . . . . . . . . . . . . . . . 364--365
                  Will P. Green   Hugh Lincoln Cooper  . . . . . . . . . . 366--366
                      ``Delta''   Finger Print Detection by Chemical Means 367--367
                 R. E. Chambers   How Telegrams are Sent in China,
                                  Transforming a Schooner into a Grain
                                  Lighter  . . . . . . . . . . . . . . . . 367--367
                  J. R. Schmidt   Smoke Helmets for Firemen, The French
                                  Prohibition of Inflammable Celluloid
                                  Films  . . . . . . . . . . . . . . . . . 367--367
                 George M. Dowe   What are the Ten Greatest Inventions of
                                  Our Time?  . . . . . . . . . . . . . . . 368--368

Scientific American
Volume 109, Number 2, July 12, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 31--31
                      Anonymous   Inventions New and Interesting . . . . . 36--37
                      Anonymous   Inventions: Recently Patented Inventions 38--39
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 39--39
                      Anonymous   Notes and Queries  . . . . . . . . . . . 43--43
                      Anonymous   Panama Canal Architecture, A Suggestion
                                  for Suburban Traffic, and more . . . . . 26--27
            Mary Worrall Hudson   The Arches of Mexico . . . . . . . . . . 28--28
                      Anonymous   Battleship Drill Indoors . . . . . . . . 29--29
             Edward Arthur Fath   The Reflector --- The Telescope of the
                                  Future . . . . . . . . . . . . . . . . . 30--30
                Lucien Fournier   Carrier Pigeons in the French Army . . . 32--33
                  Harold Bastin   Curious Resemblances in Nature . . . . . 34--34
                       W. R. I.   A Clock That Speaks the Time of Day  . . 35--35
                George F. Worts   A Mercury Interruptor  . . . . . . . . . 35--35
                C. C. Kiplinger   A Seconds Pendulum . . . . . . . . . . . 35--35
                      Anonymous   German Inventors and Office Furniture,
                                  The International Cone of Zoology  . . . 41--41
                   A. B. Quincy   The Industrial Need of Technically
                                  Trained Men --- V  . . . . . . . . . . . 42--42

Scientific American
Volume 109, Number 20, November 15, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 379--379
                      Anonymous   Inventions New and Interesting . . . . . 383--383
                      Anonymous   The First Super-Dreadnought of the U.S.
                                  Navy . . . . . . . . . . . . . . . . . . 373--375
                  F. C. Coleman   The Khedive's State Train  . . . . . . . 376--376
               Frederick Slocum   The Profile of the Sun . . . . . . . . . 377--378
                Carl Dienstbach   The Naval Airship, Waste from Desks goes
                                  into Brushes, and more . . . . . . . . . 378--378
                     R. W. Wood   Photography by Invisible Light . . . . . 380--381
                  Jacques Boyer   A Disease of Old Leaden Art Objects  . . 382--382
          Benjamin C. Gruenberg   Alfred Russel Wallace  . . . . . . . . . 384--384

Scientific American
Volume 109, Number 21, November 22, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 395--395
                      Anonymous   Inventions New and Interesting . . . . . 400--400
                      Anonymous   Inventions: Recently Patented Inventions 401--401
                      Anonymous   Notes and Queries  . . . . . . . . . . . 404--404
                      Anonymous   Weighing Half a Million Freight Cars,
                                  Water Supply of Cities Ancient and
                                  Modern, and more . . . . . . . . . . . . 389--391
                Herbert T. Wade   A Radical Improvement in Cabling . . . . 392--394
               John P. Robinson   To Strike the Pentagram  . . . . . . . . 394--394
                      Anonymous   Expert Report on the Last Zeppelin
                                  Disaster . . . . . . . . . . . . . . . . 395--395
                      Anonymous   Electric Signal Method of Firing Navy
                                  Boilers  . . . . . . . . . . . . . . . . 396--396
                      Anonymous   The Continuous Rail in the United States 397--397
              Alfred Gradenwitz   Rescue Apparatus for the Crew of a
                                  Wrecked Submarine  . . . . . . . . . . . 398--399
                      Anonymous   Losses in the Ohio Valley Flood  . . . . 403--403

Scientific American
Volume 109, Number 22, November 29, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 411--411
           Henry Norris Russell   The Heavens in December  . . . . . . . . 414--414
                      Anonymous   Inventions: Recently Patented Inventions 416--416
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 418--419
                D. R. Palmquist   Central Station Power for Farmers  . . . 405--407
              Alfred Gradenwitz   A Laboratory for Investigations of
                                  Underground Life . . . . . . . . . . . . 408--408
           Genevieve Grandcourt   What is Old Age? . . . . . . . . . . . . 409--409
                      Anonymous   The Mobile Army of the United States . . 410--411
                Joseph B. Baker   Labor-saving Appliances of the Modern
                                  Great Hotel  . . . . . . . . . . . . . . 412--413
                      Anonymous   The Greatest Side-wheel Steamer Afloat   415--415
                      Anonymous   Meteorological Stations in Venezuela . . 417--417
                      Anonymous   The Current Supplement . . . . . . . . . 420--420

Scientific American
Volume 109, Number 23, December 6, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 429--429
                      Anonymous   Inventions New and Interesting . . . . . 438--439
                      Anonymous   Inventions: Recently Patented Inventions 442--442
                      Anonymous   Notes and Queries  . . . . . . . . . . . 448--448
                      Anonymous   Pasadena's Beautiful Bridge  . . . . . . 423--423
                  C. Dienstbach   Flying in Fog and at Night, To Our
                                  Subscribers, and more  . . . . . . . . . 423--425
              Jay Hollingsworth   The Enlargement of Sculpture . . . . . . 426--426
              Elizabeth A. Ward   California Asphaltum Deposits and Method
                                  of Mining  . . . . . . . . . . . . . . . 427--428
                  F. C. Coleman   Automatic Wireless Train Control,
                                  Hamburg University Extended for Science  428--428
               J. Leon Williams   The Origin and Evolution of Man  . . . . 430--431
                      Anonymous   Wireless for Railroad Trains . . . . . . 432--432
             Hamilton M. Wright   The Panama-Pacific International
                                  Exposition of 1915 . . . . . . . . . . . 433--436
                  Alex. Del Mar   Future Prices of Commodities and
                                  Materials, A Dished Disk Stabilizer, and
                                  more . . . . . . . . . . . . . . . . . . 437--437
               Frank C. Perkins   A Gasoline Motor Plow, A Three-Axle
                                  Water Ballast Motor Roller, and more . . 439--440
                      Anonymous   Oilcloth and Linoleum Industry . . . . . 447--447

Scientific American
Volume 109, Number 24, December 13, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 455--455
                      Anonymous   Inventions: Recently Patented Inventions 461--461
                      Anonymous   Notes and Queries  . . . . . . . . . . . 463--463
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 464--464
                      Anonymous   Stoking the Locomotive by Machine  . . . 449--451
                      Anonymous   The Manufacture of Hydrogen Gas for
                                  Spherical Balloons . . . . . . . . . . . 452--452
                      Anonymous   Some Notes on the Armstrong Works  . . . 453--454
                Charles Davison   Is the Panama Canal Liable to Damage by
                                  Earthquakes? . . . . . . . . . . . . . . 454--454
            Harold J. Shepstone   Baalbek the Mysterious . . . . . . . . . 456--457
                Lucien Fournier   An Apparatus for Automatic Transmission
                                  and Reception of Wireless Messages, A
                                  New American Flying Boat . . . . . . . . 458--458
                  Percy Collins   Catalepsy in Insects . . . . . . . . . . 459--460

Scientific American
Volume 109, Number 25, December 20, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 471--471
                      Anonymous   Inventions New and Interesting . . . . . 478--479
                      Anonymous   Inventions: Recently Patented Inventions 480--480
                      Anonymous   Notes and Queries  . . . . . . . . . . . 482--483
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 484--484
                      Anonymous   The Fifth Award of the
                                  \booktitleScientific American Medal, The
                                  Decline of the United States Navy, and
                                  more . . . . . . . . . . . . . . . . . . 465--467
                Herbert T. Wade   Inspecting Track Scales for the United
                                  States Government  . . . . . . . . . . . 468--468
                      Anonymous   A Fort that Travels on Wheels  . . . . . 469--469
                  C. Dienstbach   Flying for Altitude Records, An Object
                                  Lesson in Road Maintenance, and more . . 470--470
                  Henry E. Mead   Obituary, The Current Supplement . . . . 470--470
                      Anonymous   Studying Ripening Bananas with the
                                  Respiration Calorimeter  . . . . . . . . 471--471
              J. Bernard Walker   Atlantic Steamships --- a Retrospect . . 472--475
            John W. N. Sullivan   How many Stars are there in the Milky
                                  Way? . . . . . . . . . . . . . . . . . . 476--477

Scientific American
Volume 109, Number 26, December 27, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 493--495
                      Anonymous   Inventions: Recently Patented Inventions 497--497
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 499--500
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 501--501
                      Anonymous   Notes and Queries  . . . . . . . . . . . 502--502
                      Anonymous   The Unsinkable Ship, Evolution and
                                  Ascension, and more  . . . . . . . . . . 486--487
                 J. F. Springer   The Great World Wireless Circuit . . . . 488--488
              Alfred Gradenwitz   Fighting with Dynamite and Electricity   488--488
                 G. Michaud and   
                     F. Tristan   Skin Defects in Invisible Light  . . . . 489--489
                   L. E. Browne   The Autograph of an Iceberg  . . . . . . 490--490
                      Anonymous   The World's Greatest Life-Saving Station 491--492
          Henry Harrison Suplee   Way Stations for a Relay Flight to
                                  Europe . . . . . . . . . . . . . . . . . 496--496
                      Anonymous   Making Colored Photographic
                                  Reproductions with the Aid of Blue
                                  Prints . . . . . . . . . . . . . . . . . 501--501

Scientific American
Volume 109, Number 3, July 19, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 51--51
                      Anonymous   Inventions New and Interesting . . . . . 55--55
                      Anonymous   Notes and Queries  . . . . . . . . . . . 59--59
                      Anonymous   Government Valuation of Railroads, A
                                  Word of Warning, and more  . . . . . . . 46--47
           Frederick C. Coleman   A Floating Pneumatic Elevating and Grain
                                  Discharging Plant  . . . . . . . . . . . 48--48
          M. von Recklinghausen   Purifying Water by the Action of
                                  Ultra-violet Light . . . . . . . . . . . 48--48
                      Anonymous   Shooting at Moving Pictures  . . . . . . 49--49
                Louis E. Browne   Wireless and Sound Signals as Aids to
                                  Navigation, The Competition for the New
                                  York, New Haven and Hartford Railroad
                                  Company's Automatic Stop, and more . . . 50--50
                      Anonymous   A Machine for Blowing Window Glass . . . 52--53
               J. Fidel Tristan   Do Animals See Things as We Do?, The
                                  Longest Aeroplane Flight, and more . . . 54--54
                  F. C. Coleman   An Automatic Electric Light Plant  . . . 55--55
              Louis D. Brandeis   Price Maintenance and Modem
                                  Merchandising --- III  . . . . . . . . . 56--56
                      Anonymous   The Current Supplement, A Method to
                                  Prevent Tarnishing of Silver . . . . . . 58--58

Scientific American
Volume 109, Number 4, July 26, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 67--67
                      Anonymous   Inventions New and Interesting . . . . . 71--72
                      Anonymous   Inventions: Recently Patented Inventions 73--74
                      Anonymous   The Motor-Driven Commercial Vehicle,
                                  From the Chauffeur's Point of View and
                                  more . . . . . . . . . . . . . . . . . . 76--76
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 79--79
                      Anonymous   Should the Government Manufacture its
                                  Own Armor Plate?, of Nation-wide
                                  Importance, and more . . . . . . . . . . 62--63
                 R. G. Skerrett   The Salvage and Repair of the Steamship
                                  ``Royal George'' . . . . . . . . . . . . 64--64
                  Percy Collins   Simple Methods in Model making . . . . . 65--66
          Henry Harrison Suplee   The Elevated Sidewalk, The Current
                                  Supplement . . . . . . . . . . . . . . . 67--67
                 Herbert Newton   The Scientific Employment of Men . . . . 68--70
                      Anonymous   The Wire Industry, French Fisheries on
                                  the Newfoundland Banks, and more . . . . 78--78

Scientific American
Volume 109, Number 5, August 2, 1913

                      Anonymous   Correspondence: Correspondance . . . . . 87--87
           Henry Norris Russell   The Heavens in August  . . . . . . . . . 90--91
                      Anonymous   Inventions New and Interesting . . . . . 95--96
                      Anonymous   Inventions: Recently Patented Inventions 97--98
                      Anonymous   Notes and Queries  . . . . . . . . . . . 98--98
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 98--98
                      Anonymous   Torpedo Tubes But No Torpedoes, Another
                                  Call for the Fireproof Stairway, and
                                  more . . . . . . . . . . . . . . . . . . 82--83
                      Anonymous   Some Recent Improvements in the use of
                                  the Electric Furnace . . . . . . . . . . 84--85
                 Edgar J. Banks   A Statue from the Land of Semiramis,
                                  Fire Waste at the Conservation Congress  85--85
                Carl Dienstbach   Fighting in the Air, What are the Ten
                                  Greatest Inventions of Our Time, and
                                  Why?, and more . . . . . . . . . . . . . 86--86
                      Anonymous   The Electric Production of Steel . . . . 88--89
                  Jacques Boyer   Curious Exotic Fishes  . . . . . . . . . 92--92
          Benjamin C. Gruenberg   Dead Matter That Seems Alive . . . . . . 93--93
        Charles Fitzhugh Talman   The Airman and the Weather . . . . . . . 94--94
                  L. E. Haskell   Device for Detecting Flight of
                                  Mosquitoes . . . . . . . . . . . . . . . 102--102
                Louis E. Browne   Navy to Determine Longitude by Wireless;
                                  also Speed of Hertzian Waves, The
                                  Current Supplement . . . . . . . . . . . 103--104

Scientific American
Volume 109, Number 6, August 9, 1913

                      Anonymous   Correspondence: Correspondance . . . . . 111--111
                      Anonymous   Inventions: Recently Patented Inventions 119--119
                      Anonymous   The Truth About the Iceberg Peril,
                                  Multi-gun Turrets and more . . . . . . . 106--107
                      Anonymous   Another Contest for the ``America's''
                                  Cup  . . . . . . . . . . . . . . . . . . 108--108
               Frank C. Perkins   Some Novel Electrical Devices  . . . . . 109--109
                Guy E. Mitchell   A New Baseball Indicator . . . . . . . . 109--110
                   S. P. McMinn   A French Cycle Racing-car  . . . . . . . 110--110
                Louis E. Browne   Millions for Naval Armor --- the Remedy,
                                  The Electrical Control Boards for the
                                  Panama Canal Locks and more  . . . . . . 110--110
                Robert Grimshaw   A Remarkable Review of Building Methods
                                  Old and New  . . . . . . . . . . . . . . 112--113
                  Jacques Boyer   The War Against Field Mice in France . . 114--114
                      Anonymous   Fire, Load and Water Test of Floor
                                  Arches . . . . . . . . . . . . . . . . . 115--115
               David Edgar Rice   The Industrial Need of Technically
                                  Trained Men --- VI . . . . . . . . . . . 116--118

Scientific American
Volume 109, Number 7, August 16, 1913

                      Anonymous   Correspondence: Correspondance . . . . . 127--127
                      Anonymous   Inventions New and Interesting . . . . . 131--131
                      Anonymous   Inventions: Recently Patented Inventions 132--133
                      Anonymous   Notes and Queries  . . . . . . . . . . . 135--135
                      Anonymous   Sea-level Canal Fallacies, Japan's
                                  Battle-cruiser Squadron, and more  . . . 122--123
                  Jacques Boyer   An Integrating Opacimeter for Stellar
                                  Photography  . . . . . . . . . . . . . . 124--124
                      Anonymous   Cathode Rays from Incandescent Lamps,
                                  New Kerosene Vaporizer Demonstrated, and
                                  more . . . . . . . . . . . . . . . . . . 124--125
                Walter Schumann   The Prototype of the Yale Lock . . . . . 125--125
                      Anonymous   Comparison of French and German Strength
                                  in Dirigible Airships  . . . . . . . . . 126--126
                      Anonymous   The Japanese Battle-cruiser ``Kongo''    128--130
                      Anonymous   John Milne, The Death of S. F. Cody, and
                                  more . . . . . . . . . . . . . . . . . . 134--135

Scientific American
Volume 109, Number 8, August 23, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 143--143
                      Anonymous   Inventions: Recently Patented Inventions 150--151
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 154--154
                      Anonymous   Notes and Queries  . . . . . . . . . . . 155--155
                      Anonymous   The Speed Factor in Collisions, Bigger
                                  Lifeboats for Ocean Liners, and more . . 138--140
              Ernst Meumann and   
           P. R. Radosavljevich   Teaching from the Child's Point of View  141--141
                     Henry Hale   The Vast Ore Deposits of Cuba, Treating
                                  Tuberculosis by Marine Micro-organisms,
                                  and more . . . . . . . . . . . . . . . . 142--142
                  C. Dienstbach   Fighting in the Air, A Monument to
                                  Schiaparelli, and more . . . . . . . . . 142--142
                   H. J. Slaker   Buying and Selling Silver and Gold . . . 144--147
             William H. Trueman   Cutting Keyways in a Lathe . . . . . . . 148--148
                       W. A. L.   Construction of a Water-tight Box  . . . 148--148
                   F. E. Keller   A Variable Speed Groove-pulley . . . . . 148--148
            Robert K. Patterson   Improvised Forge . . . . . . . . . . . . 148--148
               Elbert S. Ramsay   Lineman's Clamp from a Buggy Top,
                                  Workshop Notes, and more . . . . . . . . 148--148
                      Anonymous   Flashlight Signaling for Railways  . . . 149--149
                 A. B. Morrison   Expanding Socket for Screw Spikes, A New
                                  Noiseless Gear for Motor Cars, and more  149--149
                      Anonymous   Large List of Prizes in 1914 Rubber
                                  Exhibit  . . . . . . . . . . . . . . . . 153--154

Scientific American
Volume 109, Number 9, August 30, 1913

                      Anonymous   Correspondence . . . . . . . . . . . . . 163--164
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 168--168
                      Anonymous   A Costly Lack of Co-ordination, Wind
                                  Pressure on Ocean Liners, and more . . . 158--160
           P. R. Radosavljevich   Pedagogical Laboratories . . . . . . . . 161--163
              Alfred Gradenwitz   Dissecting a Military Dirigible Airship  164--165
               Robert MacIntyre   Gas Engine Yacht, A Motorcycle Milkman,
                                  and more . . . . . . . . . . . . . . . . 165--167
                  Percy Collins   How Insects Fight  . . . . . . . . . . . 167--167
                      Anonymous   The Fire Convention at New York  . . . . 171--171


Scientific American
Volume 110, Number 1, January 3, 1914

           Henry Norris Russell   The Heavens in January . . . . . . . . . 16--16
                      Anonymous   Inventions: Recently Patented Inventions 30--30
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 38--38
                      Anonymous   Notes and Queries  . . . . . . . . . . . 39--39
                Marcus Benjamin   Edmund Beecher Wilson, Prolonging the
                                  Life of Steel, and more  . . . . . . . . 5--7
                A. Russell Bond   Going Through the Shops --- I  . . . . . 8--11
                   C. E. Palmer   Centrifugal Force on Automobile Tires    11--12
                 W. A. McDermid   The Adaptability of the Motor Truck  . . 13--13
                   Harry Tipper   Good Lubrication --- The Motor Conserver 14--15
                Carl Dienstbach   The Wright Automatic Stabilizer for
                                  Aeroplanes . . . . . . . . . . . . . . . 17--17
                 Walter Bannard   Modern Electric Engine Starters and
                                  Electric Illumination Systems  . . . . . 18--19
                  George Petman   Making the Automobile Comfortable in
                                  Winter . . . . . . . . . . . . . . . . . 22--22
                      Anonymous   Lessening the Fuel Cost of Motors, New
                                  Materials for Paper Making, and more . . 22--23
               C. Edward Palmer   A Quick Reference Table for Commercial
                                  Motor Vehicle Buyers . . . . . . . . . . 24--25
                      Anonymous   Electric Commercial Vehicles, Scarcity
                                  of True Box Wood, and more . . . . . . . 25--25
               C. Edward Palmer   A Price List and Table of 1914 American
                                  Gasoline Pleasure Cars . . . . . . . . . 26--26
                      Anonymous   American Electric Pleasure Cars of 1914:
                                  Their Makers and Prices  . . . . . . . . 28--28
                      Anonymous   Notes for Inventors  . . . . . . . . . . 32--32
                      Anonymous   A Record Balloon Voyage  . . . . . . . . 37--37

Scientific American
Volume 110, Number 10, March 7, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 199--199
                      Anonymous   Inventions New and Interesting . . . . . 208--208
                      Anonymous   Inventions: Recently Patented Inventions 209--210
                      Anonymous   Notes and Queries  . . . . . . . . . . . 211--211
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 212--212
                      Anonymous   Waterspouts, Extensions of the Food and
                                  Drugs Act, and more  . . . . . . . . . . 193--195
                Lucien Fournier   A New Way of Throwing Messages from
                                  Aeroplanes . . . . . . . . . . . . . . . 196--196
                      Anonymous   Traveling Crane for Building
                                  Construction, Citropsis, Whale Meat  . . 196--196
                   C. H. Claudy   A Great Brass Brain  . . . . . . . . . . 197--198
                      Anonymous   Navigating Lights for the Panama Canal   200--200
                      Anonymous   The Problem of Our Navy  . . . . . . . . 202--203
               Walther Isendahl   Skating on Salt  . . . . . . . . . . . . 203--203
                      Anonymous   The Passing of the Sturgeon, Sikorsky's
                                  New Record, Wireless Weather Reports in
                                  the Indian Seas  . . . . . . . . . . . . 203--203
                      Anonymous   At Work On The Lincoln Highway, Novel
                                  Method of Ice Sawing, Modern Pipe
                                  Casting, and more  . . . . . . . . . . . 204--204
                      Anonymous   How the Locks of the Panama Canal are
                                  Operated . . . . . . . . . . . . . . . . 205--205
                      Anonymous   The Flying Machine and its Equipment . . 218--222
                   L. V. Redman   Recent Advances in the Art of Lacquering 222--223
                      Anonymous   Philippine Government Students in the
                                  United States, Explorers Using Wireless
                                  Telegraphy . . . . . . . . . . . . . . . 223--223

Scientific American
Volume 110, Number 11, March 14, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 231--231
                      Anonymous   Inventions: Recently Patented Inventions 239--239
                      Anonymous   Notes and Queries  . . . . . . . . . . . 242--242
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 242--242
                      Anonymous   Mawson and Wilkes, The Supreme Court's
                                  Pure Food Decision, and more . . . . . . 226--227
                      Anonymous   Bucking the Ice of the Great Lakes with
                                  a Gyro . . . . . . . . . . . . . . . . . 228--228
                      Anonymous   The Problem of Our Navy  . . . . . . . . 229--230
                Herbert T. Wade   An Improved Box for the New York Fire
                                  Alarm Telegraph  . . . . . . . . . . . . 231--231
                      Anonymous   Barranquilla to be Made a Seaport,
                                  Citrus By-Products . . . . . . . . . . . 231--231
                Carl Dienstbach   The Biggest of French Dirigibles . . . . 232--232
                      Anonymous   How to Leave Yourself at Your Tailor's,
                                  Another Automobile Head Lamp, and more   233--233
            William L. Schwartz   The Sakurajima Eruption  . . . . . . . . 234--236
                V. Ford Greaves   Wireless Detection of Wireless Criminals 236--236
                   A. P. Laurie   A New Way of Detecting Art Forgeries . . 237--237
               Alexander McAdie   The Storm of March 1st, 1914, Measured
                                  in New Units . . . . . . . . . . . . . . 238--238
                      Anonymous   Prevention of Mine Explosions by Stone
                                  Dust, C. G. S. Units of Barometric
                                  Pressure . . . . . . . . . . . . . . . . 238--238

Scientific American
Volume 110, Number 12, March 21, 1914

                      Anonymous   Dumping Conveyor at the Brakpan Gold
                                  Mines, The Kodak Film Decision, and more 243--245
             Robert G. Skerrett   A Real Lifeboat  . . . . . . . . . . . . 246--246
                       R. Arapu   Enlarging and Reducing Phonograph
                                  Records  . . . . . . . . . . . . . . . . 246--246
             John B. C. Kershaw   The Rise in Prices and the Increased
                                  Cost of Living . . . . . . . . . . . . . 247--248
                 R. W. Shufeldt   The Biggest Bird that Ever Lived . . . . 248--249
                      Anonymous   The Decision in the Kodak Film Case, A
                                  Bottle-stopper that Locks  . . . . . . . 249--249
                      Anonymous   Kinematographing the Matterhorn  . . . . 250--250
                      Anonymous   The Problem of Our Navy  . . . . . . . . 252--253
                      Anonymous   The 200 Horse-power Curtiss Motor for
                                  the Rodman Wanamaker Transatlantic
                                  Flyer, The Next Road Congress, and more  257--258

Scientific American
Volume 110, Number 13, March 28, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 265--265
           Henry Norris Russell   The Heavens in April . . . . . . . . . . 268--268
                   Ross Babcock   The Motor-Driven Commercial Vehicle  . . 270--270
                      Anonymous   Inventions: Recently Patented Inventions 271--271
                      Anonymous   A Huge Model of the Flea . . . . . . . . 259--259
                      Anonymous   The Lesson of a Ferryboat Collision,
                                  Stresses In Railroad Tracks, The Ship
                                  and Its Lifeboats, and more  . . . . . . 260--261
                      Anonymous   Motor Vehicles on Runners, Lifeboat Test
                                  Off Sandy Hook . . . . . . . . . . . . . 262--262
                      Anonymous   The Problem of Our Navy  . . . . . . . . 263--264
                      Anonymous   George Westinghouse  . . . . . . . . . . 266--267
           Genevieve Grandcourt   How the Kinematograph Facilitates the
                                  Study of Tissue  . . . . . . . . . . . . 269--269
                      Anonymous   Motor Truck in Snowbound Streets --- a
                                  Correction . . . . . . . . . . . . . . . 272--272

Scientific American
Volume 110, Number 14, April 4, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 283--283
                      Anonymous   Inventions: Recently Patented Inventions 292--293
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 301--301
                      Anonymous   Notes and Queries  . . . . . . . . . . . 302--302
              S. Leonard Bastin   Traveling Greenhouses  . . . . . . . . . 277--277
                      Anonymous   Softening Souple Silk, One of The
                                  Largest Forest Nurseries . . . . . . . . 277--277
                      Anonymous   The Redemption of Mesopotamia, New
                                  York's Sewage Problem, Solar Radiation
                                  Measurements at Great Altitudes, and
                                  more . . . . . . . . . . . . . . . . . . 278--279
                     E. A. Fath   A New Theory of Sunspots . . . . . . . . 280--280
              Frederic Campbell   First Magnitude Stars  . . . . . . . . . 280--280
                      Anonymous   The Problem of Our Navy  . . . . . . . . 281--282
            John W. N. Sullivan   Gravitation and the End of the World . . 282--283
                Carl Dienstbach   A Vindication of Adjustable Wings,
                                  Wireless in the Antarctic  . . . . . . . 283--283
            Paul Béjeuhr   How the Scientists are Studying the
                                  Aeroplane  . . . . . . . . . . . . . . . 284--285
             John L. Hogan, Jr.   The Most Powerful Government Wireless
                                  Plant  . . . . . . . . . . . . . . . . . 286--287
                    Edward Gray   Attractions of Variable-star Observing   287--287
                    J. W. Grigg   A Wonderful Model of a Copper Mine . . . 288--288
                   James Bailey   The Water-drop as a Microscope . . . . . 288--288
                      Anonymous   Finishing the Work at Panama, A New
                                  Method of Sterilizing Milk . . . . . . . 289--289
             John B. C. Kershaw   Fighting Dust with Dust  . . . . . . . . 290--290
                      Anonymous   Curiosities of Science and Invention . . 291--291
                      Anonymous   Commissioner Ewing and the Patent Office
                                  Building . . . . . . . . . . . . . . . . 295--296
           Albert A. Somerville   The Electrolysis of an Egg . . . . . . . 297--299
                  Jacques Boyer   Motion Pictures of Vocal Chords  . . . . 299--300

Scientific American
Volume 110, Number 15, April 11, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 309--309
                      Anonymous   Inventions: Recently Patented Inventions 316--316
                      Anonymous   Notes and Queries  . . . . . . . . . . . 316--316
                      Anonymous   Books: New Books, etc. . . . . . . . . . 317--317
                      Anonymous   A Mountain of Copper, Air Pressures in
                                  Playing Wind Instruments, and more . . . 303--305
                      Anonymous   The Plumbing of the Human Body . . . . . 306--306
                      Anonymous   The Problem of Our Navy  . . . . . . . . 307--308
                  Jacques Boyer   Protection From X-rays in Radiography    310--310
          Benjamin C. Gruenberg   Vocational Guidance and Efficiency . . . 312--312
                   John Jay Ide   Guns on Aeroplanes . . . . . . . . . . . 313--313
            Herbert I. Washburn   A Self-steering Farm Motor, Fodder
                                  Equivalents and more . . . . . . . . . . 313--314
                 Edgar J. Banks   Nebuchadnezzar as a Builder  . . . . . . 314--314
                 Arthur J. Lang   Safe Moving Pictures . . . . . . . . . . 315--315
                      Anonymous   Popular Beliefs and Scientific Facts, A
                                  Rockefeller Fund for the Study of Animal
                                  Disease, and more  . . . . . . . . . . . 321--322

Scientific American
Volume 110, Number 16, April 18, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 329--329
                      Anonymous   Inventions New and Interesting . . . . . 334--334
                      Anonymous   Notes and Queries  . . . . . . . . . . . 337--337
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 338--338
                      Anonymous   A Ridiculous Proposal, The ``America''
                                  Cup Contest, and more  . . . . . . . . . 324--325
                      Anonymous   Moving Pictures Without a Screen . . . . 326--326
                      Anonymous   The Problem of Our Navy  . . . . . . . . 327--328
                   C. W. Fisher   Drydocking in Canal Locks, The Problem
                                  of Three Bodies Solved, and more . . . . 328--329
                Harry N. Holmes   Powdered Coal for Fuel . . . . . . . . . 330--331
           Harry Chapin Plummer   The Taxicab Service of New York City . . 331--331
              Alfred Gradenwitz   Aeroplane Lamps  . . . . . . . . . . . . 332--333
                   W. W. Strong   A Smoke and Fume Monitor . . . . . . . . 334--334
                   H. M. Baxter   Possibilities in Brush Invention, A
                                  Simple and Convenient Fish Rod . . . . . 334--334
                      Anonymous   ``The Problem of Our Navy''  . . . . . . 336--336

Scientific American
Volume 110, Number 17, April 25, 1914

                   Ross Babcock   The Motor-Driven Commercial Vehicle  . . 350--351
                      Anonymous   Inventions: Recently Patented Inventions 354--354
                      Anonymous   The Lake Washington Canal Locks, General
                                  Gorgas Honored in England, and more  . . 339--341
                      Anonymous   Stalking Game with the Kinematograph . . 342--342
                      Anonymous   The Problem of Our Navy  . . . . . . . . 343--345
          Henry Harrison Suplee   The Man at the Switchboard, Fatal
                                  Industrial Accidents in Massachusetts,
                                  and more . . . . . . . . . . . . . . . . 345--345
                      Anonymous   Some Interesting Wiles of the Art Faker  346--348
                   James Arthur   Hands Misplaced in Egyptian Paintings
                                  and Sculptures, A Sectional Dumping Car,
                                  and more . . . . . . . . . . . . . . . . 349--349
           James McLean Helford   Buying the Truck on the Instalment Plan,
                                  Motor Truck Notes and Queries  . . . . . 351--353

Scientific American
Volume 110, Number 18, May 2, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 362--362
           Henry Norris Russell   The Heavens in May . . . . . . . . . . . 368--368
                      Anonymous   Inventions: Recently Patented Inventions 374--374
                      Anonymous   Notes and Queries  . . . . . . . . . . . 386--387
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 388--389
             Robert G. Skerrett   The Problem of the Hudson River how the
                                  Model Experimental Basin and the Moving
                                  Picture Machine Solved it, Once More the
                                  Anti-vivisectionists, and more . . . . . 357--359
               Josephus Daniels   The Problem of Our Navy  . . . . . . . . 360--361
              Charles M. Maigne   The Guns of Panama . . . . . . . . . . . 363--364
                      Anonymous   The Defense of the ``America's'' Cup . . 365--367
                      Anonymous   Curiosities of Science and Invention . . 369--370
                  Richard Arapu   The Marvels of Ultra-violet Radiation,
                                  Protective Coatings for Objects made of
                                  Plaster of Paris . . . . . . . . . . . . 370--370
                 Charles Forbes   Exploding Mines by Wireless Telegraphy,
                                  A New Experiment to Determine the
                                  Earth's Rigidity . . . . . . . . . . . . 371--371
                Samuel W. Balch   Arrangement of Wires in Multiple-unit
                                  Trains . . . . . . . . . . . . . . . . . 371--371
                      Anonymous   Notes for Inventors  . . . . . . . . . . 376--377
                      Anonymous   Dr. Hertoghe on Thyroid Deficiency, John
                                  Henry Poynting, and more . . . . . . . . 378--382
               Stanley Robinson   Sound Perception v. Deafness, Door Bells
                                  and Alarm Clocks, and more . . . . . . . 382--385
                      Anonymous   Insects in the Upper Air . . . . . . . . 385--385

Scientific American
Volume 110, Number 19, May 9, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 397--397
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 403--404
                      Anonymous   Notes and Queries  . . . . . . . . . . . 404--404
                      Anonymous   New Stamp Printing Machine of the Bureau
                                  of Engraving and Printing, An
                                  Underground Canal, and more  . . . . . . 391--394
                Herbert T. Wade   X-Ray Moving Pictures of the Digestive
                                  Tract  . . . . . . . . . . . . . . . . . 395--396
             Robert G. Skerrett   An Innovation in Ship Salvage, Dried
                                  Yeast as a Cattle Food, and more . . . . 396--396
                Louis E. Browne   Making the Navy's New 14-inch Guns . . . 398--400
                      Anonymous   New European Designs in Aeroplanes . . . 401--401
          H. Bannerman-Phillips   The Short Folding-Wing Sea-Plane of the
                                  British Navy, Historic Omnibus
                                  ``Motorized'', and more  . . . . . . . . 401--402
                    C. A. Wells   Cottonseed Flour as a Possible Food for
                                  Man, ``Snow Mushrooms''  . . . . . . . . 402--402
                E. W. McCormack   A Rare Opportunity for a Capable
                                  Inventor . . . . . . . . . . . . . . . . 405--405
                      Anonymous   A Disastrous Colonizing Experiment,
                                  Vulcanological Observatory in the West
                                  Indies . . . . . . . . . . . . . . . . . 406--406

Scientific American
Volume 110, Number 2, January 10, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 46--46
                      Anonymous   Inventions New and Interesting . . . . . 54--54
                      Anonymous   Inventions: Recently Patented Inventions 55--56
                      Anonymous   Notes and Queries  . . . . . . . . . . . 58--58
                      Anonymous   As to Alaska, Positive and Negative
                                  Natural Laws, and more . . . . . . . . . 42--43
               Tampton Aubuchon   Protecting East St. Louis Against Floods 44--44
                      Anonymous   Dreadnoughts in a Heavy Gale . . . . . . 45--46
    Major H. Bannerman-Phillips   Communication Between Aircraft and the
                                  Ground . . . . . . . . . . . . . . . . . 47--47
              Frederic R. Honey   Morning and Evening Stars for 1914 . . . 48--49
                A. Russell Bond   Going Through the Shops --- II . . . . . 50--51
                      Anonymous   A New Mechanical Tunneling Machine . . . 52--53
                  A. L. Kroeber   The Eskimos as Aboriginal Inventors  . . 54--54

Scientific American
Volume 110, Number 20, May 16, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 413--413
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 418--418
                      Anonymous   Analyzing the Human Singing Voice, The
                                  All-steel Aeroplane, and more  . . . . . 407--409
                      Anonymous   Some Interesting Automobile Novelties    410--410
              Alfred Gradenwitz   Lighthouses for the Aerial Navigator . . 411--412
                Carl Dienstbach   Has the Fighting Dirigible Airship
                                  Arrived? . . . . . . . . . . . . . . . . 412--412
    Leonard Keene Hirshberg and   
                      A. B. and   
                      M. A. and   
                  Johns Hopkins   Wit and Humor Cannot Be Appreciated
                                  Without Muscular Movements, The Flight
                                  of the House Fly, and more . . . . . . . 412--412
                      Anonymous   Interesting Features of Cup-defender
                                  Construction . . . . . . . . . . . . . . 414--416
              Alfred Gradenwitz   Fire Protection on Ocean Liners  . . . . 416--416
              S. Leonard Bastin   Have Plants an Unknown Sense?  . . . . . 417--417
               James H. Collins   The Electrical Industry and the Young
                                  Man  . . . . . . . . . . . . . . . . . . 419--420
                      Anonymous   A New German Life-saving Costume . . . . 422--422

Scientific American
Volume 110, Number 21, May 23, 1914

                      Anonymous   Inventions: Recently Patented Inventions 434--434
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 438--438
                      Anonymous   Training Marksmen by the Kinematograph,
                                  Energy from the Sun, and more  . . . . . 423--426
                      Anonymous   The World's Largest Steamship  . . . . . 427--428
              Maud DeWitt Pearl   Do Plants Sleep? . . . . . . . . . . . . 428--428
              Frederick E. Ward   Setting a Watch, Our Front-cover
                                  Illustration, and more . . . . . . . . . 428--428
                    R. H. Upson   The Fallacy of the Combined Aeroplane
                                  and Dirigible Balloon  . . . . . . . . . 429--429
                  Jacques Boyer   The Scientist and the Athlete  . . . . . 430--432
              Alfred Gradenwitz   Some Helps for the Music Teacher,
                                  Aeroplane Bomb in Morocco, and more  . . 432--433
                      Anonymous   Arctic Mines . . . . . . . . . . . . . . 437--437

Scientific American
Volume 110, Number 22, May 30, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 444--445
           Henry Norris Russell   The Heavens in June  . . . . . . . . . . 448--448
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 450--450
                      Anonymous   Inventions: Recently Patented Inventions 451--451
                      Anonymous   Basket Willow Culture in the United
                                  States, Latin-American Attitude to the
                                  United States, and more  . . . . . . . . 439--441
                      Anonymous   The Principle of the Bicycle Applied to
                                  the Motor Car  . . . . . . . . . . . . . 442--442
              Robert H. Moulton   Training Wild Animals for Moving
                                  Pictures . . . . . . . . . . . . . . . . 443--443
                H. J. Shepstone   An Unattended Lighthouse, The Boiler
                                  Plant of the ``Britannic'', and more . . 443--444
          Henry Harrison Suplee   Iron Ore, Pig-iron, and Steel Production 444--444
          Henry Harrison Suplee   The Iron Smelter's Fuel Bill . . . . . . 445--445
              Frederick E. Ward   A Variable Condenser, Construction of an
                                  Oxygen Carbon Remover  . . . . . . . . . 449--449
                     J. Naveman   Automatic Voltage Regulator,
                                  Low-pressure Atomizing Burner  . . . . . 449--449
                   K. G. Martin   Road Structure and the Commercial Car    450--450
                      Anonymous   Motor Truck Notes and Queries  . . . . . 452--453

Scientific American
Volume 110, Number 23, June 6, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 463--463
                      Anonymous   Inventions: Recently Patented Inventions 470--470
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 475--476
                      Anonymous   Notes and Queries  . . . . . . . . . . . 477--478
                 W. F. Anderson   An Ice Flood, How It Feels to Travel by
                                  Flying Boat, and more  . . . . . . . . . 457--459
                      Anonymous   Novelties in Aeroplane Design  . . . . . 460--460
             James F. Blanchard   Analytical Comparison of the Bird and
                                  Monoplane  . . . . . . . . . . . . . . . 460--460
                      Anonymous   The New Cunarder ``Aquitania'' . . . . . 461--462
                      Anonymous   Testing the Langley Aeroplane at the
                                  Curtiss Aerodrome, The Bachelet Railway,
                                  and more . . . . . . . . . . . . . . . . 462--463
             Theodore G. Hoster   Weaving Real Persian Rugs on a Power
                                  Loom, A ``Varsity'' Electrical Show, and
                                  more . . . . . . . . . . . . . . . . . . 464--465
                      Anonymous   A Gasoline Switching Engine  . . . . . . 465--465
              S. Leonard Bastin   How the Roots of Seedlings Write . . . . 466--467
            John W. N. Sullivan   New Work in Spectrum Analysis, The
                                  Disappearance of Gustav Hamel, and more  467--469
                      Anonymous   Summary of the Eighth Report of the
                                  Carnegie Foundation for the Advancement
                                  of Teaching, Alum in Foods, and more . . 473--474

Scientific American
Volume 110, Number 24, June 13, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 485--485
                      Anonymous   Inventions: Recently Patented Inventions 491--491
                      Anonymous   The World's Largest Locomotive, The One
                                  Great Lesson of the St. Lawrence
                                  Disaster, and more . . . . . . . . . . . 479--481
                      Anonymous   The Launch of ``Shamrock IV'', Trial
                                  Races of the Cup Defenders, and more . . 482--484
                    R. H. Upson   The Fallacy of the Double Dirigible
                                  Balloon  . . . . . . . . . . . . . . . . 484--484
            John W. N. Sullivan   The Life Story of an Atom  . . . . . . . 485--485
            Donald B. Armstrong   Manhattan Island: a Body of Land
                                  Surrounded by Sewage . . . . . . . . . . 486--487
                      Anonymous   Variable Speed Transmission and Rotary
                                  Pump . . . . . . . . . . . . . . . . . . 488--490
                 Henri Marchand   New Cathodic Glow Lamp . . . . . . . . . 490--490
          H. Bannerman Phillips   Gustav Hamel, New Meteorological Units
                                  in Great Britain, and more . . . . . . . 493--494

Scientific American
Volume 110, Number 25, June 20, 1914

                      Anonymous   Inventions: Recently Patented Inventions 508--509
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 512--512
                      Anonymous   Possible Addition of Three Battleships
                                  This Year, Physical Law in Economics,
                                  and more . . . . . . . . . . . . . . . . 496--497
                 A. L. Humphrey   Forty-five Years of Air-brake Evolution  498--498
                      Anonymous   The Langley Aeroplane Construction and
                                  Control Mechanism  . . . . . . . . . . . 499--500
            John W. N. Sullivan   X-Ray Analysis of Crystals, A Close
                                  Shave in the Air, and more . . . . . . . 500--501
                  V. M. Slipher   The Discovery of Nebular Rotation, The
                                  American Radio Relay League, and more    501--501
                   Oscar Parkes   The Super-Dreadnought ``Queen
                                  Elizabeth''  . . . . . . . . . . . . . . 502--502
                     Anton Rose   Psychophysical Tests for Falsehood, The
                                  Hawaiian Volcano Observatory, and more   502--504
              Alfred Gradenwitz   The Thalassioscope, Can England Be
                                  Attacked from the Air? . . . . . . . . . 504--504
              Robert H. Moulton   Making Money Out of Butterflies  . . . . 505--506
              Robert H. Moulton   Hearing Ourselves as Others Hear Us  . . 505--506
                      Anonymous   ``Marble Light'' . . . . . . . . . . . . 506--506

Scientific American
Volume 110, Number 26, June 27, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 519--519
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 524--524
                      Anonymous   Inventions: Recently Patented Inventions 525--525
                      Anonymous   Index of Inventions: Index . . . . . . . 527--528
                      Anonymous   Valuable Data for the Aeroplane Builder,
                                  ``Boats for All'' a Failure, and more    514--515
             Bannerman Phillips   How Inventors Propose to Save Men from
                                  Sunken Submarines  . . . . . . . . . . . 516--516
                      Anonymous   The Wanamaker Transatlantic Flier,
                                  Regulations for the Round the World
                                  Flight, and more . . . . . . . . . . . . 517--518
                      Anonymous   The Challenger ``Shamrock IV'' Under
                                  Sail . . . . . . . . . . . . . . . . . . 520--520
                 Burt A. Heinly   Repair of Los Angeles Aqueduct Siphon,
                                  and more . . . . . . . . . . . . . . . . 521--522
                 E. E. Pickrell   Science and the Tariff . . . . . . . . . 522--522
            John W. N. Sullivan   X-Ray Photographs of Flowers . . . . . . 523--523

Scientific American
Volume 110, Number 3, January 17, 1914

                      Anonymous   Inventions: Recently Patented Inventions 70--71
                      Anonymous   Books: New Books Etc.  . . . . . . . . . 72--72
                      Anonymous   Notes and Queries  . . . . . . . . . . . 74--74
                      Anonymous   Dredging Out the Culebra Slide, A New
                                  Source of Paper Pulp, and more . . . . . 59--61
                      Anonymous   X-Ray Photographs of Microscopic Objects 62--63
             John B. C. Kershaw   The Soot-and-Dust-fall of English Towns
                                  and Cities; 200 to 2,000 Tons per Square
                                  Mile per Annum . . . . . . . . . . . . . 63--64
                      Anonymous   A Wind Shield For Bicyclists, The
                                  Renewed Siege of the Atlantic, A Modern
                                  Battle-Practice Target, and more . . . . 63--64
     Worthington Seaton Russell   Radium in Cancer . . . . . . . . . . . . 65--65
                A. Russell Bond   Going Through the Shops --- III  . . . . 66--67
                      Anonymous   Farm for Jungle Folk . . . . . . . . . . 68--68
                Albert B. Owens   The Cleaning of Scientific Instruments
                                  Composed of Glass  . . . . . . . . . . . 68--69
                  S. T. Wellman   The Industrial Need of Technically
                                  Trained Men --- IX . . . . . . . . . . . 73--73

Scientific American
Volume 110, Number 4, January 24, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 81--81
                      Anonymous   Inventions New and Interesting . . . . . 88--88
                      Anonymous   Inventions: Recently Patented Inventions 89--89
                      Anonymous   Notes and Queries  . . . . . . . . . . . 92--92
                      Anonymous   The Legal Triumph of the Wrights, Tire
                                  Failures and Railway Speed, and more . . 76--77
                   L. V. Redman   Cleaning Silverware  . . . . . . . . . . 78--78
                   Ross Babcock   An Electrical Automobile Transmission
                                  System . . . . . . . . . . . . . . . . . 78--78
                     E. A. Fath   Wireless Time  . . . . . . . . . . . . . 79--80
                  C. Dienstbach   Recent Improvements in Aeroplane Design
                                  and what they Mean . . . . . . . . . . . 80--80
                      Anonymous   Prize for a Non-Rubber Automobile Tire,
                                  The Introduction of Deodar Cedar and Its
                                  Uses, A New Idea in Moving Pictures  . . 80--80
                 W. J. L. Kiehl   Enclosing and Partial Draining of the
                                  Zuider Zee . . . . . . . . . . . . . . . 82--83
                C. H. Robertson   The Gyroscope in China . . . . . . . . . 84--85
                      Anonymous   The Unsinkable Ship  . . . . . . . . . . 86--86
                  Richard Arapu   A Gigantic Electromagnet . . . . . . . . 87--87
                      Anonymous   An Extemporized Railway Drawbridge,
                                  Oxonized Air, The Philippine Bureau of
                                  Forestry . . . . . . . . . . . . . . . . 87--87
                      Anonymous   Astronomical Bulls, An Opinion of the
                                  \booktitleScientific American  . . . . . 91--91

Scientific American
Volume 110, Number 5, January 31, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 99--99
           Henry Norris Russell   The Heavens in February  . . . . . . . . 103--106
                      Anonymous   Winter Sports in Switzerland . . . . . . 93--93
                      Anonymous   One-man Control of the Panama Canal, The
                                  Safety of Submarines, and more . . . . . 94--95
                John D. Whiting   The Licorice Trade of Syria  . . . . . . 96--96
                  S. H. Whiting   Foolproofing the Motor Truck . . . . . . 97--97
              John S. Hardwhite   The Problem of the Second-hand Motor
                                  Truck  . . . . . . . . . . . . . . . . . 98--99
          H. Bannerman-Phillips   A Radium Motor . . . . . . . . . . . . . 99--99
                      Anonymous   The Most Modern Shipbuilding Plant in
                                  the World  . . . . . . . . . . . . . . . 100--102

Scientific American
Volume 110, Number 6, February 7, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 117--117
                      Anonymous   Inventions: Recently Patented Inventions 128--129
                      Anonymous   Notes and Queries  . . . . . . . . . . . 135--135
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 136--136
                      Anonymous   Electrically Lighted and Started
                                  Motorcycle, Graphical Studies of
                                  Marriages of the Deaf, and more  . . . . 111--113
              William H. Tolman   The \booktitleScientific American
                                  ``Safety First'' Medal . . . . . . . . . 114--114
                 David S. Beyer   The Business Side of the ``Safety
                                  First'' Principle  . . . . . . . . . . . 115--116
                      Anonymous   Earthquakes and the Panama Canal . . . . 117--119
                      Anonymous   Four-Gun Turrets of the French
                                  Battleship ``Normandie'' . . . . . . . . 120--120
                A. Russell Bond   Safety in Steel Works  . . . . . . . . . 121--122
                      Anonymous   Let the Sun Supply Hot Water, The
                                  Highest Dam in the World, and more . . . 123--123
                      Anonymous   German Gasoline-Electric Road Train, How
                                  the Ostrich Rancher Travels, and more    123--123
                      Anonymous   The Human Body in Action . . . . . . . . 124--125
                      Anonymous   Safety in an Automobile Factory  . . . . 126--127
                      Anonymous   A Portable Field Searchlight, The
                                  Expanding Weather Map  . . . . . . . . . 127--127
                      Anonymous   Proposed Improvement of the Patent
                                  Office, The Eruption of Sakurajima,
                                  Dried Fruits and Their Use . . . . . . . 130--131
                Harry N. Holmes   Variations in Atmospheric Ozone  . . . . 131--134
                      Anonymous   A New Fish-curing Method, Antarctic
                                  Postage Stamps . . . . . . . . . . . . . 134--134

Scientific American
Volume 110, Number 7, February 14, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 142--142
                      Anonymous   Inventions New and Interesting . . . . . 148--148
       Moritz A. Jägendorf   The Hope--Jones Unit Orchestra . . . . . 137--137
                      Anonymous   More Information for the House
                                  Committee, Flying Around the World, and
                                  more . . . . . . . . . . . . . . . . . . 138--140
                   E. P. Dorman   Curing Noise in a Concrete Building  . . 140--140
                      Anonymous   The German Observatory in Spitzbergen,
                                  Watching the World Revolve . . . . . . . 140--141
           Thomas T. Craven and   
                     Lieut. Com   Hitting the Bull's Eye at Six Miles  . . 143--145
                Joseph B. Baker   Eliminating the Flicker from the Moving
                                  Picture  . . . . . . . . . . . . . . . . 146--146
               John L. Cochrane   Where and how Radium is Obtained . . . . 147--147
                      Anonymous   Platinum Deposits, Beet Sugar Industry
                                  in Great Britain . . . . . . . . . . . . 152--152

Scientific American
Volume 110, Number 8, February 21, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 159--160
                      Anonymous   Inventions: Recently Patented Inventions 166--167
                      Anonymous   Notes and Queries  . . . . . . . . . . . 168--168
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 168--168
                  Percy Collins   Showing Museums to the Blind . . . . . . 153--153
                      Anonymous   The Center of the Stars, Staircase
                                  Drawers, Congress on Hygiene and
                                  Demography . . . . . . . . . . . . . . . 153--153
                      Anonymous   President Wilson on Canal Tolls,
                                  Pittsburgh's Smoke Bill, Rewards to
                                  Postal Employees For Inventions, and
                                  more . . . . . . . . . . . . . . . . . . 154--155
                    Carl Hering   A Flat Band With Only one Surface and
                                  One Edge . . . . . . . . . . . . . . . . 156--157
                      Anonymous   Fresh Discoveries Regarding Red Blood
                                  Corpuscles, The Theory of Gravity, The
                                  U.S. Fleet Collier ``Jupiter'' . . . . . 156--157
                Herbert T. Wade   The New Coolidge Roentgen Ray Tube . . . 157--157
          H. Bannerman-Phillips   Modern Hand-Grenades . . . . . . . . . . 158--159
                      Anonymous   The Wanamaker--Curtiss Transatlantic
                                  Biplane, Flying Around the World, and
                                  more . . . . . . . . . . . . . . . . . . 161--162
            John W. N. Sullivan   An Organ on which Color Compositions are
                                  Played . . . . . . . . . . . . . . . . . 163--163
                      Anonymous   A Million Shot Group, Curious Cloud
                                  Formation, and more  . . . . . . . . . . 164--164
                   H. M. Baxter   A Multiple-brush Boring Machine  . . . . 165--165
                      Anonymous   A Pocket Edition Motor Vehicle, A Cancer
                                  Indicator, How to Fix Screws in Place    165--165
                      Anonymous   A New Scheme for Selling Patents . . . . 171--171
                      L. Lodian   A Recent By-product Utilization in
                                  American Soap Manufacture  . . . . . . . 171--172

Scientific American
Volume 110, Number 9, February 28, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 179--179
           Henry Norris Russell   The Heavens in March . . . . . . . . . . 182--182
               Samuel J. Record   Prolonging the Naval Stores Industry . . 173--173
                      Anonymous   The Problem of Our Navy, Canal Tolls
                                  Sophistries ,and more  . . . . . . . . . 174--175
                  Jacques Boyer   An Ingenious Instrument for Studying
                                  Vibrations . . . . . . . . . . . . . . . 176--176
          Franklin D. Roosevelt   The Problem of Our Navy  . . . . . . . . 177--178
                    H. J. Moors   A Triumphant Struggle With a Beetle  . . 180--180
                      Anonymous   ``White Art'' and the Automobile Leap at
                                  the Hippodrome . . . . . . . . . . . . . 181--181
                   C. L. Edholm   How's the Weather Up There?  . . . . . . 183--183
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 184--184
                  Elmer J. Lamb   Steel vs.Wood for Motor Truck Wheels . . 184--185
                      Anonymous   Minnesota Road Patrol System, Motor
                                  Truck Notes and Queries  . . . . . . . . 185--185
                      Anonymous   The New Wright Aeroplane Control . . . . 188--188


Scientific American
Volume 111, Number 1, July 4, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 7--7
           Henry Norris Russell   The Heavens in July  . . . . . . . . . . 12--13
                      Anonymous   Inventions New and Interesting . . . . . 14--14
                      Anonymous   Inventions: Recently Patented Inventions 15--15
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 16--16
                      Anonymous   Notes and Queries  . . . . . . . . . . . 16--16
                      Anonymous   ``Shamrock IV'' in Drydock, A Water
                                  Model of the Electric Arc, and more  . . 1--3
                      Anonymous   X-Rays in the Treatment of Disease . . . 4--4
                      Anonymous   The Rodman Wanamaker Transatlantic Flier 5--6
                Carl Dienstbach   The Austrian Aircraft Disaster, Ulivi's
                                  Experiments in Exploding Bombs with
                                  Infra-red Rays, and more . . . . . . . . 6--6
            P. Harvey Middleton   An Underwater Siren to Prevent
                                  Collisions at Sea  . . . . . . . . . . . 8--10
                  H. S. Whiting   The Manufacture and Fitting of Piston
                                  Rings  . . . . . . . . . . . . . . . . . 11--11
              Eugene Lyman Fisk   Neglect of the Human Machine . . . . . . 19--20

Scientific American
Volume 111, Number 10, September 5, 1914

                      Anonymous   Inventions: Recently Patented Inventions 186--186
                      Anonymous   Sixteen Million Men Under Arms,
                                  Germany's Strong Strategic Position, and
                                  more . . . . . . . . . . . . . . . . . . 159--160
                      Anonymous   The Armament of the Warring Nations  . . 161--163
                      Anonymous   Feeding the Man on the Firing Line . . . 164--165
                      Anonymous   The Nerves of an Army  . . . . . . . . . 166--167
                      Anonymous   From Fighting Line to Hospital . . . . . 168--169
                      Anonymous   Aircraft in War  . . . . . . . . . . . . 170--173
                      Anonymous   A Comparison of Naval Strength . . . . . 174--175
                      Anonymous   The Mistress of the Seas . . . . . . . . 176--178
                      Anonymous   The French Contingent of the Allied
                                  Fleets . . . . . . . . . . . . . . . . . 179--180
                      Anonymous   Russian Navy in the Baltic . . . . . . . 181--181
                      Anonymous   Germany's Bid for Naval Supremacy  . . . 182--184
                      Anonymous   Austria's Navy and the Adriatic  . . . . 185--185
                      Anonymous   France as an Air Power, Great Britain
                                  and the Air, and more  . . . . . . . . . 194--198
                      Anonymous   Rifle Fire and Aircraft  . . . . . . . . 200--201
               Arthur Macdonald   The Scientific Side of Baseball  . . . . 201--202

Scientific American
Volume 111, Number 11, September 12, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 211--211
                Herbert T. Wade   Inventions New and Interesting . . . . . 216--216
                      Anonymous   Inventions: Recently Patented Inventions 217--217
                      Anonymous   The First Month of the War, Penalizing
                                  Invention, and more  . . . . . . . . . . 206--207
                  Albert Marple   Combining the Phonograph and the Camera  208--208
              Alfred Gradenwitz   Moving Picture Panoramas . . . . . . . . 208--208
                    Jean Dawson   Fighting the Fly in the Interest of
                                  Public Health  . . . . . . . . . . . . . 209--211
                      Anonymous   First Naval Engagement of the War  . . . 212--215

Scientific American
Volume 111, Number 12, September 19, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 227--227
                      Anonymous   Inventions: Recently Patented Inventions 233--236
                      Anonymous   Notes and Queries  . . . . . . . . . . . 239--239
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 240--240
                      Anonymous   Illegal Mining and Bomb-dropping, An
                                  Internationalized Science, and more  . . 222--223
                      Anonymous   The Tunkhannock Railway Viaduct  . . . . 224--224
          H. Bannerman-Phillips   How Great Britain Trains her Military
                                  Aviators . . . . . . . . . . . . . . . . 225--226
                  Jacques Boyer   An Automobile Radio-Telegraph Station
                                  for War Use  . . . . . . . . . . . . . . 228--228
                   C. H. Claudy   Time as a Factor in Baseball . . . . . . 229--229
                 J. F. Springer   The Micro-structure of Steel, The Dewey
                                  Decimal System for Filing Pamphlets,
                                  Clippings and Books  . . . . . . . . . . 230--230
       George Frederic Stratton   The Smallest Public Service Plant in the
                                  Country, Electric Speed Indicator for
                                  Locomotives  . . . . . . . . . . . . . . 231--231
                     Paul James   Rubber Foam, Three-letter Linotype
                                  Matrix, and more . . . . . . . . . . . . 231--232
                      Anonymous   Notes for Inventors  . . . . . . . . . . 237--237
                      Anonymous   Switzerland Asks for Help  . . . . . . . 238--238

Scientific American
Volume 111, Number 13, September 26, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 247--247
           Henry Norris Russell   The Heavens in October . . . . . . . . . 250--251
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 252--254
                      Anonymous   Science in Peace and in War, A Real Test
                                  of the Flying Machine in War, and more   242--243
      Immanuel Friedländer   Volcanic Clouds, The United States
                                  Battleship ``Pennsylvania'' and Class,
                                  and more . . . . . . . . . . . . . . . . 244--244
                      Anonymous   The Automobile of the Sea  . . . . . . . 245--246
                      Anonymous   The Effect of the Zeppelin Bombardment
                                  of Antwerp . . . . . . . . . . . . . . . 248--249
                Harry N. Holmes   Gas Batteries, A Remarkable Natural
                                  Bridge, and more . . . . . . . . . . . . 251--251

Scientific American
Volume 111, Number 14, October 3, 1914

                      Anonymous   Inventions: Recently Patented Inventions 292--295
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 295--295
                      Anonymous   Notes and Queries  . . . . . . . . . . . 296--296
                      Anonymous   Frontiers in the Old World and the New,
                                  Military Meteorology, and more . . . . . 260--260
                Leon S. Roudiez   Protection for the Fighting Line of an
                                  Army . . . . . . . . . . . . . . . . . . 261--265
                      Anonymous   Strategic Moves of the War . . . . . . . 265--265
                      Anonymous   Mobile Siege Guns in the Present War . . 266--267
               A. G. Piorkowski   The Turret Fort  . . . . . . . . . . . . 268--269
                      Anonymous   Attack and Defense by Submarine Mines    270--271
                      Anonymous   The Submarine Vindicated . . . . . . . . 272--273
                      Anonymous   List of Ships of the Triple Entente and
                                  the Dual Alliance  . . . . . . . . . . . 274--275
                   John Barrett   Our Latin American Opportunity . . . . . 278--279
                      Anonymous   Opinion from Prominent Business Men on
                                  Our Trade Opportunity  . . . . . . . . . 280--281
             Winthrop L. Marvin   Our Merchant Marine; Past, Present and
                                  Future . . . . . . . . . . . . . . . . . 282--283
       Theodore M. R. von Keler   Europe's Fighting Motor Cars, Germany's
                                  Automobile Strength, and more  . . . . . 283--284
                      Anonymous   How the War Affects the Papermaker, The
                                  Dumdum Bullet, and more  . . . . . . . . 288--291

Scientific American
Volume 111, Number 15, October 10, 1914

                      Anonymous   Inventions New and Interesting . . . . . 308--308
                      Anonymous   Inventions: Recently Patented Inventions 309--309
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 312--312
                      Anonymous   The Military Carrier Pigeon
                                  Photographer, War will not Halt the
                                  Panama-Pacific International Exposition,
                                  and more . . . . . . . . . . . . . . . . 297--299
                      Anonymous   Laying the Aqueduct Siphon Across the
                                  Narrows to Staten Island . . . . . . . . 300--300
                 G. Michaud and   
                     F. Tristan   Flowers Photographed with Invisible
                                  Light  . . . . . . . . . . . . . . . . . 301--302
             Winthrop L. Marvin   Our Merchant Marine, Past, Present and
                                  Future . . . . . . . . . . . . . . . . . 303--305
        Leonard Keene Hirshberg   Sewing Broken Bones with Bone Pegs . . . 304--305
                      Anonymous   The War in Europe  . . . . . . . . . . . 306--307
                      Anonymous   A Final (?) Word on the Benzoate of
                                  Sodium Controversy, Foreign Students at
                                  American Colleges and Universities, and
                                  more . . . . . . . . . . . . . . . . . . 310--311

Scientific American
Volume 111, Number 16, October 17, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 319--319
                      Anonymous   Technical Fallacies of the Present War,
                                  The Problem of Our Merchant Marine, and
                                  more . . . . . . . . . . . . . . . . . . 314--315
                      Anonymous   Letters from the Firing Line . . . . . . 316--316
           E. C. Slipher Lowell   Our Knowledge of the Planet Mars . . . . 317--319
             Phillip E. Edelman   Electric Death, Sex Differentiation, and
                                  more . . . . . . . . . . . . . . . . . . 319--319
                      Anonymous   Our Latin American Opportunity . . . . . 319--319
                 G. L. Dilworth   The Electric High School . . . . . . . . 320--320
             John L. Hogan, Jr.   Radio-telegraphy at the Eiffel Tower . . 321--321
                      Anonymous   Strategic Moves of the War . . . . . . . 322--322
             Winthrop L. Marvin   Our Merchant Marine --- Past, Present,
                                  and Future . . . . . . . . . . . . . . . 324--324
                      Anonymous   Electric Power as a by-product at Mines  327--327

Scientific American
Volume 111, Number 17, October 24, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 335--335
                      Anonymous   Inventions: Recently Patented Inventions 340--340
                      Anonymous   An Inconvenience, Not a Disaster, The
                                  Passing of Permanent Field
                                  Fortifications, and more . . . . . . . . 330--331
          H. Bannerman-Phillips   Making War Photographs from Aeroplanes   332--333
                   L. V. Redman   How the War Affects Our Industries, New
                                  Flashlight Signal Apparatus for Army
                                  Use, and more  . . . . . . . . . . . . . 334--335
                      Anonymous   Letters from the Firing Line . . . . . . 336--337
                      Anonymous   Strategic Moves of the War; or the War
                                  in Europe  . . . . . . . . . . . . . . . 338--339
                      Anonymous   Our 8,000 Islands  . . . . . . . . . . . 342--342

Scientific American
Volume 111, Number 18, October 31, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 351--351
           Henry Norris Russell   The Heavens in November  . . . . . . . . 354--354
                      Anonymous   Inventions New and Interesting . . . . . 356--356
                      Anonymous   Inventions: Recently Patented Inventions 357--357
                      Anonymous   Value of Speed --- in the Right Ships,
                                  The Navy Wants Dirigibles, and more  . . 346--347
                      Anonymous   Letters from the Firing Line . . . . . . 348--348
            William Nelson Taft   Saving . . . . . . . . . . . . . . . . . 349--349
                      Anonymous   Strategic Moves of the War . . . . . . . 350--350
                  Jacques Boyer   The Colin--Jeance System of Wireless
                                  Telephony  . . . . . . . . . . . . . . . 352--352
                      Anonymous   Random Reflections, Analysis of Descent  352--353
                      Anonymous   Tempering Bronze . . . . . . . . . . . . 358--358

Scientific American
Volume 111, Number 19, November 7, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 369--369
                      Anonymous   Inventions: Recently Patented Inventions 389--389
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 400--400
                      Anonymous   Mechanical Fatigue in a Machine-made
                                  War, Feeding the German People, and more 364--365
          H. Bannerman-Phillips   The Efficiency of European Armies  . . . 366--368
                      Anonymous   The Japanese Navy  . . . . . . . . . . . 370--371
                      Anonymous   A Modern Military Camp . . . . . . . . . 372--373
                      Anonymous   Random Reflections, Cellulose Sponges    373--373
                      Anonymous   Torpedo Warfare  . . . . . . . . . . . . 374--374
                Alfred J. Lotka   War the Destroyer  . . . . . . . . . . . 375--375
                      Anonymous   Modern Submarine Warfare . . . . . . . . 376--377
                      Anonymous   Strategic Moves of the War . . . . . . . 378--381
                Charles Bolduan   Medical Science in the Service of War    382--383
                    John J. Ide   Armored Automobiles in War . . . . . . . 384--385
                      Anonymous   An Army on the March . . . . . . . . . . 386--387
                      Anonymous   Letters from the Firing Line . . . . . . 388--388
                      Anonymous   Failure of the Military Aeroplane
                                  Competition  . . . . . . . . . . . . . . 397--397

Scientific American
Volume 111, Number 2, July 11, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 27--27
               William N. Hardy   A Boy's Model of a Battleship,
                                  Battleship Versus Submarine and
                                  Aeroplane, and more  . . . . . . . . . . 21--23
          H. Bannerman-Phillips   The Martinsyde Transatlantic Challenger
                                  Monoplane  . . . . . . . . . . . . . . . 24--24
               J. E. Williamson   Taking Moving Pictures at the Bottom of
                                  the Ocean  . . . . . . . . . . . . . . . 25--26
              Frederic Campbell   Two Giant Worlds, The Ninth
                                  International Congress of Applied
                                  Chemistry, and more  . . . . . . . . . . 26--26
                    Jean Dawson   Eliminating a City's Filth and Flies . . 28--29
                      Anonymous   Signaling with Electric Light in the
                                  Daytime, Gamma Rays Produced by Means of
                                  an X-ray Tube, and more  . . . . . . . . 30--31
                Joseph H. Odell   The Universal University . . . . . . . . 32--33
                      Anonymous   New Aeronautic Records, Separate Running
                                  Gears and Bodies for Railway Cars, and
                                  more . . . . . . . . . . . . . . . . . . 34--36

Scientific American
Volume 111, Number 20, November 14, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 407--407
                      Anonymous   Inventions: Recently Patented Inventions 413--414
                      Anonymous   Notes and Queries  . . . . . . . . . . . 416--416
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 416--416
                 J. F. Springer   Ocean-going Log Rafts, On the Mat, and
                                  more . . . . . . . . . . . . . . . . . . 401--404
                      Anonymous   Forest Fire Fighting . . . . . . . . . . 405--406
                      Anonymous   Hearing Print  . . . . . . . . . . . . . 406--406
                  Joel Stebbins   The Electrical Measurement of Star Light 408--408
                      Anonymous   Strategic Moves of the War . . . . . . . 410--410
                      Anonymous   Random Reflections . . . . . . . . . . . 410--410
              Frank B. Gilbreth   A Museum of Devices for the Elimination
                                  of Unnecessary Fatigue in the
                                  Industries, A Flood-proof Road, and more 411--412

Scientific American
Volume 111, Number 21, November 21, 1914

                      Anonymous   Inventions New and Interesting . . . . . 428--428
                      Anonymous   Entrenched Troops Versus 16-inch
                                  Mortars, A Few Thoughts on Man, and more 418--419
                      Anonymous   The Naval Fights in the Pacific and
                                  Indian Oceans  . . . . . . . . . . . . . 420--421
                      Anonymous   Strategic Moves of the War . . . . . . . 422--422
                      Anonymous   Letters from the Firing Line . . . . . . 423--423
                Herbert T. Wade   The World's Longest Bascule Bridge . . . 424--424
          H. Bannerman-Phillips   Wirelessly-Controlled Beacons  . . . . . 425--425
          Benjamin C. Gruenberg   August Weismann the Apostle of Germ
                                  Plasm  . . . . . . . . . . . . . . . . . 426--427

Scientific American
Volume 111, Number 22, November 28, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 439--439
           Henry Norris Russell   The Heavens in December  . . . . . . . . 442--442
                      Anonymous   Is Battleship Subdivision a Failure?,
                                  Sources of Commercial Potash, and more   434--435
           Harry Chapin Plummer   The Rythmikon --- a New Aid to the Study
                                  of Musical Rhythm, Ultra-violet Rays for
                                  Water Purification in Army Service . . . 436--436
                      Anonymous   The Loss of the ``Audacious''  . . . . . 437--437
                      Anonymous   Strategic Moves of the War . . . . . . . 438--439
                   Thomas Ewing   The Legal Definition of a Patent,
                                  Motorcycles in the War, and more . . . . 439--439
                Lewis W. Fetzer   The ``Foot-and-Mouth Disease'' . . . . . 440--441
                  W. D. Matthew   The Largest Known Dinosaur . . . . . . . 443--444

Scientific American
Volume 111, Number 23, December 5, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 455--455
                      Anonymous   Inventions: Recently Patented Inventions 474--478
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 483--484
                      Anonymous   The Action in which the ``Carmania''
                                  Sank the ``Cap Trafalgar'', The Silent
                                  War, and more  . . . . . . . . . . . . . 449--451
                      Anonymous   Field Gun and Aerial Projectiles . . . . 452--453
                      Anonymous   Strategic Moves of the War . . . . . . . 454--454
                   Martin Wells   Building Bridges Under Fire  . . . . . . 456--457
                      Anonymous   The Military Resources of Turkey, the
                                  Latest Country to Enter the Great World
                                  War  . . . . . . . . . . . . . . . . . . 458--459
                 Benjamin Baker   Is Germany Self-Sustaining in War? . . . 460--460
                      Anonymous   Campaigning in Winter  . . . . . . . . . 461--463
                      Anonymous   Mining and Countermining of
                                  Fortifications . . . . . . . . . . . . . 464--467
                      Anonymous   Blowing Up Barbed Wire Entanglements . . 468--469
                      Anonymous   The War Game and how it is Played  . . . 470--471
                      Anonymous   Rifles and Mortars . . . . . . . . . . . 472--473
                      Anonymous   In Flight Over the Enemy, Concrete
                                  Freezing . . . . . . . . . . . . . . . . 481--482

Scientific American
Volume 111, Number 24, December 12, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 491--491
                      Anonymous   The National Security Commission,
                                  Admiral Mahan, and more  . . . . . . . . 486--487
                Guy E. Mitchell   The Seed Supply and the War  . . . . . . 488--489
                      Anonymous   Strategic Moves of the War . . . . . . . 490--490
                   Thomas Ewing   The Work and Needs of the United States
                                  Patent Office  . . . . . . . . . . . . . 491--491
              Ray Francis Yates   New York State Barge Canal . . . . . . . 492--493
                   L. V. Redman   Fire . . . . . . . . . . . . . . . . . . 494--498
                      Anonymous   Watch Spring Testing Apparatus . . . . . 494--494
                      Anonymous   Floral Siamese Twins, Stepless Omnibuses
                                  in New York, and more  . . . . . . . . . 495--496
                      Anonymous   The Current Supplement . . . . . . . . . 498--498

Scientific American
Volume 111, Number 25, December 19, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 507--507
               Shelby McKinstry   Inventions New and Interesting . . . . . 512--512
                      Anonymous   Inventions: Recently Patented Inventions 513--513
                  Jacques Boyer   Further Experiments on Life Without
                                  Microbes . . . . . . . . . . . . . . . . 501--501
                      Anonymous   Hysteria and Common Sense, The Ups and
                                  Downs of War, and more . . . . . . . . . 502--503
                 J. F. Springer   Looping the Loop in the Alps . . . . . . 504--505
                 Oliver Johnson   Reinforced Concrete Pontoon  . . . . . . 505--505
        Leonard Keene Hirshberg   The Cause of Neuralgia . . . . . . . . . 505--505
                      Anonymous   Strategic Moves of the War . . . . . . . 506--506
                 L. E. Shapcott   The Western Australian Goldfields  . . . 508--509
                  B. O. Jenkins   Alcohol as Fuel  . . . . . . . . . . . . 509--509
                      Anonymous   Letters from the Firing Line . . . . . . 510--510
                    H. Marchand   The German Military Telephone System . . 511--511

Scientific American
Volume 111, Number 26, December 26, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 523--523
                      Anonymous   Inventions New and Interesting . . . . . 528--532
                      Anonymous   Inventions: Recently Patented Inventions 529--529
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 533--533
                      Anonymous   Some Recent Naval Operations, The War,
                                  Industrial Research, and the American
                                  Manufacturer, and more . . . . . . . . . 518--519
              Frederick C. Hild   War Experiences of an Air Scout --- I    520--520
                     G. Michaud   Air Transparency for Infra-Red Rays  . . 521--521
                      Anonymous   Strategic Moves of the War . . . . . . . 522--522
                      Anonymous   Righting a Twenty-thousand-ton Grain
                                  Elevator . . . . . . . . . . . . . . . . 524--525
            Prince Sarath Ghosh   The Methods of Hindu Jugglery and Magic  526--526
                  Harold Bastin   The ``Ears'' and Sound-Producing
                                  Mechanisms of Insects  . . . . . . . . . 527--527

Scientific American
Volume 111, Number 3, July 18, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 43--45
                      Anonymous   Inventions: Recently Patented Inventions 48--49
                      Anonymous   New York's Water Supply, Perfecting the
                                  ``America's'' Water Wings, and more  . . 38--40
                Herbert T. Wade   Testing a Safety System for Storing and
                                  Distributing Inflammable Liquids . . . . 40--40
                   John Jay Ide   The Paul Schmitt Biplane . . . . . . . . 41--42
          H. Bannerman-Phillips   The New British ``Mark R. E.'' Biplane,
                                  Business in the Patent Office, and more  42--42
                 Henry H. Riggs   A Bottomless Pit, New Type of Tire
                                  Chain, and more  . . . . . . . . . . . . 46--46

Scientific American
Volume 111, Number 4, July 25, 1914

                      Anonymous   The Motor-Driven Commercial Vehicle  . . 64--64
                      Anonymous   A Perpetual Electric Current, Wilkes
                                  Land Up to Date, and more  . . . . . . . 54--55
                      Anonymous   Watercycle Races . . . . . . . . . . . . 56--56
                   F. J. Weyman   Steering Air Craft at Sea  . . . . . . . 57--59
                      Anonymous   Further Changes in the ``America's''
                                  Bottom, Phosphorescent Air Craft . . . . 59--59
                  C. Dienstbach   Did Prof. S. P. Langley Invent the First
                                  Practical Flying Machine?  . . . . . . . 59--59
              Alfred Gradenwitz   An Alpine Museum . . . . . . . . . . . . 60--60
        Charles Fitzhugh Talman   Crossing ``Greenland's Icy Mountains''   61--63
                  H. S. Whiting   Lessons from the Railroads for the Truck
                                  Owner, Motor Truck Notes and Queries . . 64--65

Scientific American
Volume 111, Number 5, August 1, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 75--75
           Henry Norris Russell   The Heavens in August  . . . . . . . . . 80--81
                      Anonymous   Inventions New and Interesting . . . . . 83--83
                      Anonymous   Inventions: Recently Patented Inventions 84--85
                      Anonymous   Notes and Queries  . . . . . . . . . . . 86--86
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 86--86
                      Anonymous   Recent American and European Express
                                  Locomotives, Tuning Up the Cup
                                  Defenders, and more  . . . . . . . . . . 69--72
                      Anonymous   The ``America's'' Developments of the
                                  Past Week, Cottonseed Meal as a
                                  Substitute for Meat, and more  . . . . . 72--72
                      Anonymous   The Elephant Butte Dam . . . . . . . . . 73--74
              Frederic Campbell   Air Pressure in the Subway . . . . . . . 76--76
             Robert G. Skerrett   The Great Cofferdam for the Hudson River
                                  Piers, The Largest Fore-and-Aft Sailing
                                  Yacht  . . . . . . . . . . . . . . . . . 76--76
            Félix Bertyn   Fog and Marine Disasters, Bringing a
                                  Rudderless Ship into Port, and more  . . 78--78
               John S. Harwhite   Will the Cyclecar Come into its Own? . . 79--79
               Frank C. Perkins   Super-high Velocity Cartridges and
                                  Three-barrel Guns  . . . . . . . . . . . 82--82
                    Otto Maurer   Desiccated and Frozen Eggs . . . . . . . 82--82
                      Anonymous   Pending Applications in the Patent
                                  Office and how they are Being Handled    91--92

Scientific American
Volume 111, Number 6, August 8, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 99--99
                      Anonymous   Inventions: Recently Patented Inventions 104--104
                      Anonymous   The Cape Cod Canal in Service, Navy
                                  Personnel Legislation, and more  . . . . 94--95
                   John Jay Ide   The Sperry Gyroscopic Stabilizer . . . . 96--96
                Samuel W. Balch   Graphic Prediction of Solar Eclipses . . 97--97
             Walter M. Mitchell   Recent Progress in Solar Research, Forty
                                  Tons at a Single Scoop, and more . . . . 97--98
                      Anonymous   The ``America's'' Trip Postponed, Horace
                                  C. Hovey, and more . . . . . . . . . . . 99--99
                Herbert T. Wade   How Yachts are Measured  . . . . . . . . 100--100
                      Anonymous   A Fortune for a Simple Invention . . . . 101--101
               Henry J. Gaisman   How I Came to Invent the Autographic
                                  Kodak  . . . . . . . . . . . . . . . . . 101--101
          François Magri   A Huge Tesla Apparatus . . . . . . . . . 102--102
               Arthur Macdonald   The Psychology of Catching in Baseball,
                                  A Wheelless Tractor, and more  . . . . . 102--103
                      Anonymous   New Facts About Parasites  . . . . . . . 106--106

Scientific American
Volume 111, Number 7, August 15, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 115--115
                      Anonymous   Inventions New and Interesting . . . . . 120--120
                      Anonymous   Inventions: Recently Patented Inventions 121--121
                      Anonymous   The War and Our Dilemma, The Napoleon of
                                  the Twentieth Century, and more  . . . . 110--111
                      Anonymous   The Opening of the Cape Cod Canal  . . . 112--112
        Joseph A. Steinmetz and   
                Carl Dienstbach   The Air Bomb . . . . . . . . . . . . . . 113--114
                      Anonymous   Suspending Life, Plants and Disease, and
                                  more . . . . . . . . . . . . . . . . . . 114--114
                      Anonymous   The Current Supplement, What it Costs to
                                  Kill a Man in War, and more  . . . . . . 115--116
                 J. F. Springer   The Unloading of Coal from and to
                                  Vessels, Searchlights of the German
                                  Fleet, and more  . . . . . . . . . . . . 117--118
              Hartley M. Phelps   Bureau of Standards Furnace for Testing
                                  Building Materials, Schaumann Armor
                                  Plate, and more  . . . . . . . . . . . . 118--119
               Harry C. Plummer   Baltimore's Car-ferry  . . . . . . . . . 120--120

Scientific American
Volume 111, Number 8, August 22, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 134--134
                      Anonymous   Inventions: Recently Patented Inventions 137--137
                      Anonymous   The Indomitable Engineer, Best Light for
                                  the Eyes, and more . . . . . . . . . . . 126--127
             Robert G. Skerrett   An All Metal Diving Suit . . . . . . . . 128--128
               Frederick Slocum   This Month's Total Eclipse of the Sun    129--130
        Leonard Keene Hirshberg   Curious Things About Handwriting,
                                  Strange Animal Tragedies . . . . . . . . 130--130
                Carl Dienstbach   The Prospects of Aerial Fighting in the
                                  Present War  . . . . . . . . . . . . . . 131--133
                      Anonymous   Subsistence in the Present War . . . . . 134--134
          H. Bannerman-Phillips   Russia's Giant War Flyers  . . . . . . . 135--136
                      Anonymous   The Current Supplement, A Society that
                                  Studies Instruments of Precision . . . . 139--139

Scientific American
Volume 111, Number 9, August 29, 1914

                      Anonymous   Correspondence . . . . . . . . . . . . . 147--147
           Henry Norris Russell   The Heavens in September . . . . . . . . 150--150
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 152--152
                      Anonymous   Inventions: Recently Patented Inventions 153--153
                      Anonymous   The Command of the Sea, A Real Test for
                                  Military Aircraft, and more  . . . . . . 142--143
                      Anonymous   Night Landing Signals for War Aeroplanes 144--144
                      Anonymous   A Permanent Electric Current Without
                                  Electromotive Force  . . . . . . . . . . 145--146
             Percival A. Hislam   A Century of Dreadnoughts, How much it
                                  Costs to Kill a Man in Battle, and more  146--147
                  S. F. Maxwell   Remarkable Wood Preservation, A
                                  Double-piston Internal-combustion
                                  Engine, and more . . . . . . . . . . . . 151--151
                      Anonymous   Motor Truck Notes and Queries  . . . . . 154--154


Scientific American
Volume 112, Number 1, January 2, 1915

           Henry Norris Russell   The Heavens in January . . . . . . . . . 24--24
                   C. H. Claudy   The Burton Process of ``Cracking'' to
                                  Make Gasoline  . . . . . . . . . . . . . 5--5
                      Anonymous   Review of the Year 1914  . . . . . . . . 6--7
                      Anonymous   Military Tactics and the Motor . . . . . 8--9
                   S. P. McMinn   The Car of 1915  . . . . . . . . . . . . 10--10
             Charles F. Barrett   The High Speed Automobile Motor  . . . . 11--11
                Herbert T. Wade   The Storage and Handling of Gasoline in
                                  the Garage . . . . . . . . . . . . . . . 12--13
              Logan Waller Page   How Small Communities May have Good
                                  Roads  . . . . . . . . . . . . . . . . . 14--17
                 Victor W. Page   Chart Illustrating the Proper
                                  Lubrication of the Standard Motor Car
                                  Chassis  . . . . . . . . . . . . . . . . 18--19
              Frederick C. Hild   War Experiences of an Air Scout --- II   20--20
                   John Jay Ide   American Automobile Coachwork  . . . . . 21--23
                      Anonymous   The Sinking of the German Pacific
                                  Squadron . . . . . . . . . . . . . . . . 25--25
               C. Edward Palmer   Which Pleasure Car Fits the Buyer's
                                  Purse? . . . . . . . . . . . . . . . . . 26--27
                      Anonymous   Which Electric Pleasure Car Fits the
                                  Buyer's Purse? . . . . . . . . . . . . . 28--28
               C. Edward Palmer   Business Man's Reference Table of
                                  Commercial Vehicles  . . . . . . . . . . 28--28
                      Anonymous   A Business Man's Reference Table of
                                  Commercial Vehicles. --- Concluded . . . 30--30
                      Anonymous   Reference Table of Electric Commercial
                                  Vehicles . . . . . . . . . . . . . . . . 30--30

Scientific American
Volume 112, Number 10, March 6, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 217--217
                      Anonymous   Recently Patented Inventions . . . . . . 230--232
                      Anonymous   Notes and Queries  . . . . . . . . . . . 237--238
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 239--239
                      Anonymous   General Locomotive, Peace Insurance, and
                                  more . . . . . . . . . . . . . . . . . . 212--215
                      Anonymous   German Agriculture in War Time . . . . . 216--216
                      Anonymous   Hitting an Invisible Ship at a Ten-mile
                                  Range  . . . . . . . . . . . . . . . . . 218--219
                      J. Cvijic   The Present Geographical Position of
                                  Serbia, Berlin Higher Schools and the
                                  War, and more  . . . . . . . . . . . . . 219--219
                      Anonymous   Getting the Range  . . . . . . . . . . . 220--222
                      Anonymous   Improvised Means of Crossing Rivers  . . 228--228
                      Anonymous   Random Reflections . . . . . . . . . . . 229--229
                   C. F. Talman   Dark Days and Forest Fires, Restoring
                                  Fatigued Muscles, and more . . . . . . . 229--229
                W. P. Cohoe and   
                  E. C. Fox and   
                    A. J. Acton   A New Casing for Sausages  . . . . . . . 235--236

Scientific American
Volume 112, Number 11, March 13, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 249--249
           Henry Norris Russell   The Heavens in March . . . . . . . . . . 252--252
                      Anonymous   Panama Canal Open to Large Ocean Liners,
                                  The First National Bird Census, and more 243--245
                  W. H. Dearden   A Machine That Remembers and Forgets,
                                  Universal Sun-dial . . . . . . . . . . . 246--246
                   L. W. Dooley   The Educational Scrap Heap and the Blind
                                  Alley Job  . . . . . . . . . . . . . . . 247--248
                   C. L. Edholm   In Quest of Sunken Treasure  . . . . . . 250--250
                 George A. Hill   The Paris Observatory and Its Work . . . 251--251
                      Anonymous   Plant Autographs and What They Mean  . . 253--254
                      Anonymous   The Death of Lieut. Munby  . . . . . . . 257--257

Scientific American
Volume 112, Number 12, March 20, 1915

                      Anonymous   Inventions: Recently Patented Inventions 273--274
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 275--276
                      Anonymous   Notes and Queries  . . . . . . . . . . . 279--280
                      Anonymous   The Lesson of the ``Queen Elizabeth'',
                                  Light Reading for Polar Explorers, and
                                  more . . . . . . . . . . . . . . . . . . 262--263
                      Anonymous   Forcing the Dardanelles  . . . . . . . . 264--265
                      Anonymous   Two Startling Discoveries in Oil
                                  Refining . . . . . . . . . . . . . . . . 266--267
                   C. H. Claudy   The Rittman Process of ``Cracking''  . . 267--267
                   J. P. Kirsch   The Marble Columns of the Lincoln
                                  Memorial . . . . . . . . . . . . . . . . 267--267
         Abbé Th. Moreux   Saturn, the Most Interesting Planet of
                                  the Solar System . . . . . . . . . . . . 268--269
                  Percy Collins   Table-Top Geography  . . . . . . . . . . 270--270
                      Anonymous   Some Interesting Automobile Novelties    271--272
                Ernest A. Dench   Methods by Which the European War Has
                                  Been Filmed, The Current Supplement, and
                                  more . . . . . . . . . . . . . . . . . . 277--278

Scientific American
Volume 112, Number 13, March 27, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 289--289
                      Anonymous   Rescue Company No. 1 of the New York
                                  Fire Department, A Fair Field and No
                                  Favor, and more  . . . . . . . . . . . . 283--285
             John L. Hogan, Jr.   The Principles of Radio-Telephony  . . . 286--287
                H. J. Shepstone   Building a Lighthouse on Shifting Sand,
                                  A New Engineering Medal, and more  . . . 287--288
               Warren H. Miller   The Superheated Steam Unit . . . . . . . 290--291
                      Anonymous   An Aerial Monorail . . . . . . . . . . . 292--294
                      Anonymous   Chestnut Blight Poisoning  . . . . . . . 298--298

Scientific American
Volume 112, Number 14, April 3, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 309--309
           Henry Norris Russell   The Heavens in April . . . . . . . . . . 318--318
                      Anonymous   The Battle-cruiser, The Small Farm
                                  Tractor, and more  . . . . . . . . . . . 304--305
                    L. W. Ellis   Progress in Small Farm Tractors  . . . . 306--308
                      Anonymous   The Submarine at Sea . . . . . . . . . . 310--311
                      Anonymous   Röntgen Motion Pictures . . . . . . . . . 312--312
        Leonard Keene Hirshberg   More Mysteries of Ultra-violet Light . . 312--313
                 Victor W. Page   Location of Motorcycle Power Plant
                                  Troubles . . . . . . . . . . . . . . . . 314--315
                      Anonymous   Forcing the Dardanelles  . . . . . . . . 316--317
                      Anonymous   Freeing Condensed Steam From Oil, Food
                                  Production in the United States  . . . . 325--326
                      Anonymous   Random Reflections, A Medal for the
                                  Inventor of Invar  . . . . . . . . . . . 326--328
                      Anonymous   Producing the Effective Temperature of
                                  the Sun, World's Largest Soup Kitchen,
                                  and more . . . . . . . . . . . . . . . . 328--331
                  C. Dienstbach   The Zeppelin Raid on Paris, Our
                                  Neglected Aquatic Foods, and more  . . . 332--332

Scientific American
Volume 112, Number 15, April 10, 1915

                      Anonymous   Inventions: Recently Patented Inventions 347--348
                  Harold Bastin   Radio-Active Ores and Plant Life,
                                  Belgian Bridge in Reinforced Concrete,
                                  and more . . . . . . . . . . . . . . . . 335--338
                 H. D. Schedler   Wireless Telegraphy and Railroading  . . 338--338
            George von L. Meyer   An Analysis of Our Naval Standing --- I  339--340
                      Anonymous   An Important Development in Color
                                  Photography  . . . . . . . . . . . . . . 341--341
             Robert G. Skerrett   A Submarine to Salve a Submarine . . . . 342--342
           Harry Chapin Plummer   Color Music --- a New Art Created With
                                  the Aid of Science . . . . . . . . . . . 343--344
          Joseph William Griggs   Two Groups in the American Museum of
                                  Natural History  . . . . . . . . . . . . 345--346
                      Anonymous   Bricks Without Clay  . . . . . . . . . . 351--351

Scientific American
Volume 112, Number 16, April 17, 1915

                 J. F. Springer   Raising the ``F-4'', Are Obsolete
                                  Battleships Obsolete?, and more  . . . . 355--357
             Edward C. Crossman   Dum-dum Bullets  . . . . . . . . . . . . 358--358
            George von L. Meyer   An Analysis of Our Naval Standing --- II 359--360
                 W. J. L. Kiehl   Zones of Silence, The Current Supplement 360--360
                 A. M. Jungmann   Teaching Defective Children,
                                  Disinfecting Railway Cars  . . . . . . . 361--361
                    Samuel Wein   Selenium in the Production of Colored
                                  Glass, Back Numbers of the
                                  \booktitleScientific American
                                  Supplement, and more . . . . . . . . . . 361--361
                      Anonymous   Development and Perfection of Schoop
                                  Metal Spray  . . . . . . . . . . . . . . 362--362
                     Ernst Keil   Measuring One Twenty-Millionth of an
                                  Inch . . . . . . . . . . . . . . . . . . 363--364
                      Anonymous   The Strangest City in the World  . . . . 365--367
                      Anonymous   An Important Moving-picture Decision . . 370--370

Scientific American
Volume 112, Number 17, April 24, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 381--381
                      Anonymous   Inventions: Recently Patented Inventions 387--388
              Charles W. Person   New York City's Twenty-five Foot Map,
                                  Scholarship for Belgian Students in
                                  American Universities, and more  . . . . 375--377
             Hamilton M. Wright   The Panama-Pacific International
                                  Exposition at Night  . . . . . . . . . . 378--378
                      Anonymous   Valuable Products Recovered from Coke
                                  Oven Gases . . . . . . . . . . . . . . . 379--380
                      Anonymous   The Death of Cecil Peoli, Prof. C. W.
                                  MacCord Dead, and more . . . . . . . . . 381--381
                      Anonymous   Saving Eight Million Tons of Coal a Year 382--382
                Herbert T. Wade   A New Searchlight for the United States
                                  Navy . . . . . . . . . . . . . . . . . . 382--382
                  F. B. Littell   Longitudes by Wireless Telegraphy  . . . 382--383
                      Anonymous   The Sound Wheel, a Novel Wireless
                                  Detector, The Albessard Aeroplane, and
                                  more . . . . . . . . . . . . . . . . . . 384--384
                 Alexander Pope   Animal Life in a Zoo . . . . . . . . . . 385--385
                      Anonymous   A Clock Built of Straw, Vacuum System of
                                  Gasoline Feed and more . . . . . . . . . 386--386
                      Anonymous   Continuous Aviation Competitions, The
                                  Current Supplement . . . . . . . . . . . 391--391

Scientific American
Volume 112, Number 18, May 1, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 403--403
           Henry Norris Russell   The Heavens in May . . . . . . . . . . . 407--409
                      Anonymous   Recently Patented Inventions . . . . . . 411--411
                      Anonymous   Notes and Queries  . . . . . . . . . . . 412--412
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 412--412
                      Anonymous   The Submarine as a Commerce Destroyer,
                                  Scientific Solidarity in Wartime, and
                                  more . . . . . . . . . . . . . . . . . . 395--396
                      Anonymous   Electricity  . . . . . . . . . . . . . . 397--397
                      Anonymous   Science  . . . . . . . . . . . . . . . . 397--397
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 397--397
             Edward C. Crossman   The European Infantryman's Rifle . . . . 398--398
                      Anonymous   The Rifles of European Fighters  . . . . 399--400
                      Anonymous   The Bullets of the Fighting Nations  . . 400--402
                 Walter Bannard   The Mechanics of Convalescence . . . . . 404--405
                  C. Dienstbach   The Government's Competition for a Naval
                                  Dirigible  . . . . . . . . . . . . . . . 405--406
                      Anonymous   Protecting a Retreating Army . . . . . . 406--406
                      Anonymous   A Suggestion in Patent Reform, New Use
                                  for Cocoanut Water, and more . . . . . . 414--416
                Robert Grimshaw   War Capacity of United States Railways   417--418
               Arthur Macdonald   Statistics of Baseball . . . . . . . . . 418--424

Scientific American
Volume 112, Number 19, May 8, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 433--433
             Edward C. Crossman   Hand Grenades, Strategic Positions of
                                  the Contending Armies, and more  . . . . 427--429
             Robert G. Skerrett   A Mother Ship for Submarines . . . . . . 430--431
                     C. D. Ward   Plan for the Improvement of Hell Gate,
                                  East River, A Black Finish for Iron, and
                                  more . . . . . . . . . . . . . . . . . . 432--433
               Albert S. Osborn   Science and the Forger . . . . . . . . . 434--435
                    L. W. Ellis   Milling the Soil . . . . . . . . . . . . 436--437
                      Anonymous   A System of Long Distance Typewriting    438--438
               Arthur Macdonald   The Psychology of Batting in Baseball,
                                  Good Roads Legislation . . . . . . . . . 440--442

Scientific American
Volume 112, Number 2, January 9, 1915

                      Anonymous   Inventions: Recently Patented Inventions 56--56
                      Anonymous   Railway Safety and Railway Economics,
                                  The Invisible Man Behind the Gun, and
                                  more . . . . . . . . . . . . . . . . . . 46--47
                      Anonymous   The Balboa Docks . . . . . . . . . . . . 48--49
             Robert G. Skerrett   Notable Salvage Work Upon the ``Empress
                                  of Ireland'', The Highest and Lowest
                                  Temperatures in the Atmosphere, and more 49--50
                       A. Given   A Formula for Calculating the Tactical
                                  Value of Fighting Ships, The Sewage
                                  Purifying Plant at Ostend  . . . . . . . 50--50
              Frederick C. Hild   War Experiences of an Air Scout --- III  51--51
                 Howard A. Knox   Measuring Human Intelligence . . . . . . 52--53
              S. Leonard Bastin   Temperature in Plants  . . . . . . . . . 54--54
                C. O. Sandstrom   Archimedes and his Lever, Dr. Hall, the
                                  Aluminium Pioneer  . . . . . . . . . . . 54--55
                      Anonymous   New Railway Signal . . . . . . . . . . . 59--59

Scientific American
Volume 112, Number 20, May 15, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 453--453
                      Anonymous   Inventions: Recently Patented Inventions 459--459
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 460--460
                      Anonymous   A Garden of Serpents, High-speed Stars,
                                  and more . . . . . . . . . . . . . . . . 447--449
                J. Andrew White   Marconi's Wireless Telephone . . . . . . 450--450
                Herbert T. Wade   Edison Submarine Boat Storage Battery    450--450
              Arthur H. Compton   What is Matter Made of?  . . . . . . . . 451--452
                   Hudson Maxim   Lessons of the Present War from a
                                  Technical Point of View  . . . . . . . . 453--453
                   C. H. Claudy   Motion Picture Magic . . . . . . . . . . 454--455
                 A. M. Jungmann   Your Panama Hat  . . . . . . . . . . . . 456--456
           Joseph William Grigg   The Fly  . . . . . . . . . . . . . . . . 457--457
               Arthur Macdonald   Power of Mind in Baseball  . . . . . . . 462--463

Scientific American
Volume 112, Number 21, May 22, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 473--473
                      Anonymous   War, Humanized and De-humanized, The
                                  Renewing of Italy's Navy, and more . . . 468--470
                  A. L. Kroeber   Visible Speech . . . . . . . . . . . . . 471--472
                      Anonymous   The Naval Review at New York,
                                  4,250-Pound Block of Coal for Fair . . . 473--473
                Fred W. Vincent   Connecting Idaho with the Sea  . . . . . 476--477
                   C. H. Claudy   Our Army Wireless Automobiles  . . . . . 478--479
                      Anonymous   The Energy of Projectiles  . . . . . . . 482--482

Scientific American
Volume 112, Number 22, May 29, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 493--493
           Henry Norris Russell   The Heavens in June  . . . . . . . . . . 496--496
                      Anonymous   Inventions: Recently Patented Inventions 499--501
             Francis B. Crocker   When Electricity Was Really in its
                                  Infancy, What Sank the ``Lusitania''?,
                                  and more . . . . . . . . . . . . . . . . 487--489
                 Stanley Petman   Storing the Tourists' Needs, A New
                                  Life-boat  . . . . . . . . . . . . . . . 490--491
                L. K. Hirshberg   The Study of Animal and Human Behavior   491--492
                   W. W. Wright   What the National Guard Needs, Loading
                                  and Firing Submarine Torpedoes, and more 492--493
                      Anonymous   A Mercury-Vapor Engine . . . . . . . . . 494--495
              Robert H. Moulton   Measuring the Twisting Strength of
                                  Steel, Model of the Typhus Carrier, and
                                  more . . . . . . . . . . . . . . . . . . 497--498
                      Anonymous   Concrete for Churches  . . . . . . . . . 502--502

Scientific American
Volume 112, Number 23, June 5, 1915

                      Anonymous   Inventions: Recently Patented Inventions 548--558
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 568--568
                      Anonymous   Some Great Inventors of the Past Seven
                                  Decades  . . . . . . . . . . . . . . . . 509--509
                      Anonymous   Our Seventieth Anniversary, The Greatest
                                  Ten Years of Invention, The
                                  Super-Battle-Cruiser . . . . . . . . . . 510--510
             Cyrus H. McCormick   Seventy Years of Invention . . . . . . . 511--520
                      Anonymous   The Rise of the Automobile . . . . . . . 521--522
                      Anonymous   Transportation on Land and Sea . . . . . 523--526
                      Anonymous   Seventy Years of Civil Engineering . . . 527--529
                      Anonymous   The Invention and Development of
                                  Photography  . . . . . . . . . . . . . . 530--530
         Charles Wheatstone and   
                William Thomson   Communicating Over Great Distances . . . 531--532
               William I. Wyman   The Patent Office and Invention Since
                                  1845 . . . . . . . . . . . . . . . . . . 533--534
           Charles F. Brush and   
         Carl Auer von Welsbach   Converting Night into Day  . . . . . . . 535--536
                   Nikola Tesla   Some Personal Recollections  . . . . . . 537--537
                      Anonymous   Machines With Which Machines are Made    538--539
           Alfred Ely Beach and   
              Orson Desaix Munn   Seventy Years of the
                                  \booktitleScientific American  . . . . . 540--543
                      Anonymous   Making a New Industry  . . . . . . . . . 544--546
                 M. L. Crossley   The Development of the Dye Industry  . . 577--581
                      Anonymous   The Rise of the Motorcycle . . . . . . . 581--582

Scientific American
Volume 112, Number 24, June 12, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 591--591
                      Anonymous   Inventions: Recently Patented Inventions 597--597
                      Anonymous   Some Thoughts on the War, When the
                                  German Fleet Comes Out, and more . . . . 586--590
                      Anonymous   Strategic Moves of the War . . . . . . . 590--591
                  C. Dienstbach   A Submarine Sunk by a Zeppelin . . . . . 591--591
                      Anonymous   The Italian Navy . . . . . . . . . . . . 592--593
                Herbert T. Wade   The Westinghouse Electro-pneumatic Air
                                  Brake on the Pennsylvania Railroad . . . 594--594
             John B. C. Kershaw   The Use of Poisonous Gases in Warfare    595--595
                  Harold Bastin   A Study in Instinct  . . . . . . . . . . 596--596
                      Anonymous   Preventing the Corrugation of Street Car
                                  Rails  . . . . . . . . . . . . . . . . . 599--599

Scientific American
Volume 112, Number 25, June 19, 1915

                   W. B. Morton   Inventions New and Interesting . . . . . 614--614
                      Anonymous   Inventions: Recently Patented Inventions 615--615
                Thomas F. Logan   Running Railroads by Water Power . . . . 603--603
                      Anonymous   Hunting for Derelict Ships . . . . . . . 606--606
                  Jacques Boyer   Photographing Speech . . . . . . . . . . 607--608
                      Anonymous   The Strategic Moves of the War . . . . . 609--609
                      Anonymous   Italy on a War Footing . . . . . . . . . 610--611
             Robert G. Skerrett   A Novel Dissolving Picture-projecting
                                  Apparatus  . . . . . . . . . . . . . . . 612--613
                      Anonymous   Research and Industry  . . . . . . . . . 616--618

Scientific American
Volume 112, Number 26, June 26, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 629--629
           Henry Norris Russell   The Heavens in July  . . . . . . . . . . 634--634
                      Anonymous   Inventions: Recently Patented Inventions 635--635
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 637--638
                      Anonymous   The Three-masted Auxiliary Schooner
                                  Yacht ``Sea Call'', New Uses for
                                  Infusorial Earth, and more . . . . . . . 623--625
                      Anonymous   The Naval and Military Exhibit of the
                                  National Security League . . . . . . . . 626--626
                  C. Dienstbach   The Aeronautic Lessons of the European
                                  War  . . . . . . . . . . . . . . . . . . 627--627
                      Anonymous   The Strategic Moves of the War . . . . . 628--629
                      Anonymous   The Instrumental Study of the Heart  . . 630--631
              S. Leonard Bastin   Are Plants Cruel?  . . . . . . . . . . . 632--633
                      Anonymous   Electric Remote Gages for Shooting
                                  Ranges . . . . . . . . . . . . . . . . . 633--633
                      Anonymous   Wire Rope  . . . . . . . . . . . . . . . 639--639

Scientific American
Volume 112, Number 3, January 16, 1915

                      Anonymous   Inventions: Recently Patented Inventions 73--73
                      Anonymous   Unjust Criticism, Industrial Capitals as
                                  Factors in War, and more . . . . . . . . 62--63
                H. C. Spaulding   Electric Cookery . . . . . . . . . . . . 64--64
                      Anonymous   Where the Smoke Helmet Would be
                                  Invaluable . . . . . . . . . . . . . . . 65--65
                      Anonymous   Disastrous Burnout in a Subway Manhole   66--66
                Charles Maxaner   A New Whole Wheat Flour  . . . . . . . . 67--67
              Maud DeWitt Pearl   Hunger Strikes an Aid to Good Health . . 67--67
        Leonard Keene Hirshberg   Drop Head, a New Ailment . . . . . . . . 67--67
                     Simon Lake   Submarines That are Strictly Invisible   68--69
                 Arthur Chapman   A Mine in a Meteor-Made Crater . . . . . 70--72
                      Anonymous   Quack Tree Surgeons, Oil Paint on Cement 75--75

Scientific American
Volume 112, Number 4, January 23, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 83--83
                 J. F. Springer   Inventions New and Interesting . . . . . 88--88
                      Anonymous   Militarism, Science and Lexicography,
                                  and more . . . . . . . . . . . . . . . . 78--79
                      Anonymous   Steamship Terminal in the Bronx  . . . . 80--81
              Frederic R. Honey   Morning and Evening Stars for 1915 . . . 82--83
                      Anonymous   A Safety Code for Abrasive Wheels  . . . 83--83
             Robert G. Skerrett   Floating a Stranded Ship on Air  . . . . 84--84
           Frederick C. Coleman   A Submarine for the Austro--Hungarian
                                  Navy . . . . . . . . . . . . . . . . . . 85--85
                      Anonymous   Synthetic Resins . . . . . . . . . . . . 86--86
                   E. P. Wilson   Curiosities of Bygone Ages . . . . . . . 87--87
                 Edgar J. Banks   Another Remarkable Discovery in
                                  Babylonia  . . . . . . . . . . . . . . . 87--87
                      Anonymous   Causes of Forest Fires . . . . . . . . . 90--90

Scientific American
Volume 112, Number 5, January 30, 1915

           Henry Norris Russell   The Heavens in February  . . . . . . . . 102--102
                      Anonymous   Inventions: Recently Patented Inventions 105--108
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 109--110
                      Anonymous   Notes and Queries  . . . . . . . . . . . 110--110
                      Anonymous   The Military Value of Airships, The
                                  Shipping Bill Fallacy, and more  . . . . 94--95
                      Anonymous   The Periscope --- How it is Constructed
                                  and Manipulated  . . . . . . . . . . . . 96--96
             Robert G. Skerrett   Fighting the Sea with Compressed Air,
                                  Using Volcanic Steam for the Production
                                  of Electrical Energy . . . . . . . . . . 97--98
        Leonard Keene Hirshberg   Do You See the Point?  . . . . . . . . . 98--98
                      Anonymous   Government Co-operation with Our
                                  Industries --- I . . . . . . . . . . . . 99--99
                  W. P. Pycraft   Mankind in the Making  . . . . . . . . . 100--101
                      Anonymous   The Photo-Kaleidograph . . . . . . . . . 103--104

Scientific American
Volume 112, Number 6, February 6, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 139--139
                      Anonymous   Inventions: Recently Patented Inventions 140--142
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 148--148
                      Anonymous   Colonel Bryan's Army of One Million Men,
                                  The Grave Peril of the Shipping Bill,
                                  and more . . . . . . . . . . . . . . . . 116--117
                      Anonymous   I --- The United States an Undefended
                                  Treasure Land  . . . . . . . . . . . . . 118--120
                      Anonymous   The Navy --- Our First Line of Defense   121--123
                      Anonymous   The Art of Deception in War  . . . . . . 124--124
                      Anonymous   The Military Rocket Camera . . . . . . . 125--125
                      Anonymous   Feeding the German Nation in Time of War 125--125
                Carl Dienstbach   Aircraft Artillery and Bomb-Dropping . . 126--127
                      Anonymous   Random Reflections, French Power Wagon
                                  Trials Interrupted, and more . . . . . . 127--127
                      Anonymous   Doing Without Europe --- II  . . . . . . 128--128
                      Anonymous   Across the Continent by Telephone  . . . 129--129
                      Anonymous   Detail Drawings and Descriptions of the
                                  Mim and Lewis Rapid Fire Machine Guns    130--133
               Charles E. Crane   Mobilizing News  . . . . . . . . . . . . 134--135
                      Anonymous   The Battle of the North Sea  . . . . . . 136--136
             Edward C. Crossman   Smokeless Powder . . . . . . . . . . . . 136--137
                      Anonymous   War Uses of the Motorcycle . . . . . . . 138--138
                      Anonymous   Flammarion Talks on the Sun  . . . . . . 146--148

Scientific American
Volume 112, Number 7, February 13, 1915

                      Anonymous   Inventions New and Interesting . . . . . 161--161
                      Anonymous   Inventions: Recently Patented Inventions 163--163
                      Anonymous   Kammerlingh Onnes, the Dutch Specialist
                                  in Cold, Problem of the Slides at
                                  Culebra, and more  . . . . . . . . . . . 151--153
                      Anonymous   Hydraulic Fill Dam for an Earthquake
                                  Region . . . . . . . . . . . . . . . . . 154--154
                      Anonymous   Using a Store Entrance for Night
                                  Displays . . . . . . . . . . . . . . . . 155--156
                Ernest A. Dench   Military Air Scouting by Motion
                                  Pictures, Steel Darts, and more  . . . . 156--156
                      Anonymous   Doing Without Europe --- III . . . . . . 157--157
                      Anonymous   II --- The United States an Undefended
                                  Treasure Land  . . . . . . . . . . . . . 158--159
                H. J. Shepstone   Heat from Our Lady of the Snow . . . . . 160--160
                Herbert T. Wade   Watching Distant Machines from a Desk,
                                  The Envelop Sealer of the Pension
                                  Office, and more . . . . . . . . . . . . 161--162

Scientific American
Volume 112, Number 8, February 20, 1915

                      Anonymous   Inventions: Recently Patented Inventions 183--184
                      Anonymous   Notes and Queries  . . . . . . . . . . . 186--186
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 186--186
              Charles W. Person   New York's Greatest Lighting Spectacle,
                                  The Administration View of the Shipping
                                  Bill, and more . . . . . . . . . . . . . 171--173
              William H. Tolman   The Sixth Award of the
                                  \booktitleScientific American Medal for
                                  Safety Devices . . . . . . . . . . . . . 174--174
                 W. J. L. Kiehl   Stretchers of Straw for the Dutch Army,
                                  Manufacture of Optical Glass in America,
                                  and more . . . . . . . . . . . . . . . . 175--175
                      Anonymous   Doing Without Europe --- IV  . . . . . . 176--176
            Joshua W. Alexander   The Government Ship Purchase Bill --- I  177--177
                      Anonymous   III --- The United States an Undefended
                                  Treasure Land  . . . . . . . . . . . . . 178--181
                      Anonymous   How Epidemics are Fought in the Austrian
                                  Army, The Meat Supply of the United
                                  States, and more . . . . . . . . . . . . 182--182


Scientific American
Volume 113, Number 1, July 3, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 9--9
                      Anonymous   Inventions: Recently Patented Inventions 32--32
                      Anonymous   Notes and Queries  . . . . . . . . . . . 36--36
                      Anonymous   Training Women to be Car Conductors,
                                  Natural Explosion Phenomena, and more    3--5
              W. D. A. Anderson   Trench Warfare . . . . . . . . . . . . . 6--9
                  E. C. Edwards   Cipher Codes and their Uses  . . . . . . 9--9
              Alfred Gradenwitz   Science in German Concentration Camps    10--11
                Davina Waterson   The Verdict of the Insects . . . . . . . 11--11
                      Anonymous   Austria's Famous ``Skoda'' Mortars . . . 12--13
                      Anonymous   Bath Trains of the Russian Army  . . . . 13--13
                      Anonymous   The Fight Between the ``Constitution''
                                  and the ``Guerri\`ere''  . . . . . . . . 14--15
                      Anonymous   The Modern Submarine . . . . . . . . . . 16--17
               John S. Harwhite   The How and Why of the V-Type Motor  . . 20--23
             Edward C. Crossman   How Rifle Bullets Fly  . . . . . . . . . 24--24
              Alfred Gradenwitz   The German Post Office and the German
                                  Army . . . . . . . . . . . . . . . . . . 25--25
                 A. P. Chalkley   The Machinery of Modern Submarines . . . 26--27
                      Anonymous   The Strategic Moves of the War . . . . . 28--36
                      Anonymous   A Combined Bolt and Lock-nut, Sculptor's
                                  Pneumatic Chisel, and more . . . . . . . 30--32
               Warren H. Miller   Superheated Steam in Torpedo-boat
                                  Engines  . . . . . . . . . . . . . . . . 33--35

Scientific American
Volume 113, Number 10, September 4, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 199--199
           Henry Norris Russell   The Heavens in September . . . . . . . . 202--202
                      Anonymous   Inventions: Recently Patented Inventions 211--212
                      Anonymous   Erecting the Largest Steel Arch Bridge
                                  in Existence, The Second Pan-American
                                  Scientific Congress, and more  . . . . . 193--195
               Ladis\las D'Orcy   How the War has Modified the Aeroplane   196--197
               Matthew E. Hanna   Strategic Moves of the War --- August
                                  25th, 1915 . . . . . . . . . . . . . . . 198--198
          E. H. Williamson, Jr.   A Small Aero-Electric Plant  . . . . . . 200--201
             Edward Ewing Pratt   Effect of the War on American Industries
                                  --- I  . . . . . . . . . . . . . . . . . 203--203
         Frederick Eppelsheimer   Where Wings are made for Fighting Men    204--205
                    H. W. Perry   Influence of the War on the Automobile
                                  Industry . . . . . . . . . . . . . . . . 206--208
             Edward C. Crossman   The Accuracy of Modern Rifles, Russian
                                  Naval Victory in the Baltic, and more    209--209
                   Paul Ehrlich   The Loss of Two Great Physicians . . . . 210--210
                Alfred J. Lotka   Mathematical Coincidences, Superposed
                                  Stereoscopic Pictures that Need no
                                  Stereoscope  . . . . . . . . . . . . . . 210--210
                      Anonymous   Tasks of German Inventors in Wartime . . 214--216
                      Anonymous   The Bee in Winter Time, Safety in Coal
                                  Mines, and more  . . . . . . . . . . . . 217--219
             Edward C. Crossman   Cartridges for War . . . . . . . . . . . 219--221

Scientific American
Volume 113, Number 11, September 11, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 231--231
               Frank C. Perkins   Inventions New and Interesting . . . . . 236--236
                      Anonymous   Inventions: Recently Patented Inventions 237--237
                      Anonymous   Notes and Queries  . . . . . . . . . . . 240--240
                      Anonymous   Italian Machine for Loading Coal
                                  Tenders, Wars, Ancient and Modern, and
                                  more . . . . . . . . . . . . . . . . . . 225--228
              Alfred Gradenwitz   Educating Invalid Soldiers . . . . . . . 229--229
             Edward Ewing Pratt   Effect of the War on American Industries
                                  --- II . . . . . . . . . . . . . . . . . 230--231
                Herbert T. Wade   Mechanical Equipment of the Grand
                                  Central Post Office  . . . . . . . . . . 232--233
               Matthew E. Hanna   Strategic Moves of the War --- September
                                  1st, 1915  . . . . . . . . . . . . . . . 234--235
             Leigh F. J. Zerbee   An Instance of the Parabolic Reflector
                                  Reversed, Putting the Light under the
                                  Fender . . . . . . . . . . . . . . . . . 235--235
                      Anonymous   The Current Supplement, The Vitamines,
                                  and their Importance for the Maintenance
                                  of Health  . . . . . . . . . . . . . . . 238--239

Scientific American
Volume 113, Number 12, September 18, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 249--249
                      Anonymous   Inventions New and Interesting . . . . . 255--262
                      Anonymous   Inventions: Recently Patented Inventions 256--256
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 256--256
                      Anonymous   The War and Immigration: An
                                  Unintentional Experiment in Restriction,
                                  The Diabetic Triad, and more . . . . . . 244--245
                S. Bent Russell   A Thinking Machine, Planning and
                                  Theories . . . . . . . . . . . . . . . . 246--246
                  Milo Hastings   A Million Chicks to the Acre . . . . . . 247--247
               Matthew E. Hanna   Strategic Moves of the War --- September
                                  8th, 1915, and more  . . . . . . . . . . 248--248
                      Anonymous   The Austrian Submarines, A Large
                                  Induction Coil of Novel Design, and more 250--251
                          Dlack   America's Greate Irrigation Project  . . 252--253
                Dwight Douglass   Throwing vs. Batting a Tennis Ball,
                                  Measuring the Altitude of a Kite . . . . 254--254

Scientific American
Volume 113, Number 13, September 25, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 271--271
                      Anonymous   Inventions New and Interesting . . . . . 276--276
                      Anonymous   Inventions: Recently Patented Inventions 277--277
                      Anonymous   Notes and Queries  . . . . . . . . . . . 280--280
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 280--280
                      Anonymous   Signaling Apparatus used by Airships,
                                  Thermometry of Low Temperatures, and
                                  more . . . . . . . . . . . . . . . . . . 265--267
                Henry M. Robert   Curbing the Sea at Galveston . . . . . . 268--268
             Charles Alma Byers   Remarkable Collision between an Oil Car
                                  and a Steam Locomotive . . . . . . . . . 269--269
               Matthew E. Hanna   Strategic Moves of the War --- September
                                  15th, 1915 . . . . . . . . . . . . . . . 270--270
                     Simon Lake   Submarine for Hydrographic Work  . . . . 272--275
                      Anonymous   The Largest Hydraulic Motor  . . . . . . 279--279

Scientific American
Volume 113, Number 14, October 2, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 291--291
           Henry Norris Russell   The Heavens in October . . . . . . . . . 300--300
                      Anonymous   Inventions: Recently Patented Inventions 305--305
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 313--313
                      Anonymous   Notes and Queries  . . . . . . . . . . . 314--314
                      Anonymous   The Exchange of Severely Wounded
                                  Prisoners, The Progress of Library
                                  Service, and more  . . . . . . . . . . . 285--287
             Edward C. Crossman   The Development of the Army Pistol . . . 288--288
             Herbert J. Spinden   Stefánsson's New Found Land . . . . . . . 289--289
               Matthew E. Hanna   Strategic Moves of the War, September
                                  21st 1915  . . . . . . . . . . . . . . . 290--290
                      Anonymous   A Question of Increase . . . . . . . . . 292--293
               Ladis\las d'Orcy   Cost of the War in Airships  . . . . . . 294--294
                      Anonymous   Collapse of the Subway Work on Seventh
                                  Avenue . . . . . . . . . . . . . . . . . 295--295
                      Anonymous   Recoil Mechanism of Modern Guns  . . . . 296--297
                 Lehman Johnson   Scientific Solution of the World's
                                  Cotton Problem . . . . . . . . . . . . . 297--297
              Alfred Gradenwitz   Floating Hospitals of Europe . . . . . . 298--299
            Frederick von Pilis   Austrian Gun Boats on the Danube,
                                  Protection from Lightning, and more  . . 299--299
                      Anonymous   The Naval Advisory Board of Inventions
                                  --- I  . . . . . . . . . . . . . . . . . 301--301
                      Anonymous   America as her Own Chemist . . . . . . . 302--302
               Chas. W. Henning   How an Incendiary was Foiled in the
                                  Great Pabst Plant at Milwaukee . . . . . 307--307
                      Anonymous   Patents of Chile, Legal Notes  . . . . . 310--311
                      Anonymous   How to Drink from a Bubbling Fountain.
                                  ``Bite the Bubble''  . . . . . . . . . . 312--312

Scientific American
Volume 113, Number 15, October 9, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 321--321
                      Anonymous   That ``Baby'' Submarine, Approaching
                                  Advent of Commercial Wireless Telephony,
                                  and more . . . . . . . . . . . . . . . . 316--317
                      Anonymous   ``Repairing the Gulflight''  . . . . . . 318--318
                      Anonymous   Long Distance Wireless Telephony . . . . 319--319
               Matthew E. Hanna   Strategic Moves of the War, September
                                  28th, 1915 . . . . . . . . . . . . . . . 320--320
                   Barnum Brown   Tyrannosaurus, a Cretaceous Carnivorous
                                  Dinosaur . . . . . . . . . . . . . . . . 322--323
                      Anonymous   Not Merely Mining but Bridge Building    324--324
                    Carl Hering   Boat Design that Eliminates Bow Waves
                                  and Wake, Three-Wheeled Automobile of --
                                  Unusual Design . . . . . . . . . . . . . 325--325
                      Anonymous   The Naval Advisory Board of Inventions
                                  --- II . . . . . . . . . . . . . . . . . 326--326
                      Anonymous   Evaporation in the United States . . . . 328--328

Scientific American
Volume 113, Number 16, October 16, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 339--339
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 344--345
                      Anonymous   Inventions: Recently Patented Inventions 345--345
                      Anonymous   Submarines Betrayed by Sound Waves . . . 333--335
                    J. A. Furer   Salvage of the Submarine F-4 . . . . . . 336--337
              J. B. W. Gardiner   Strategic Moves of the War, October 7th,
                                  1915 . . . . . . . . . . . . . . . . . . 338--339
                      Anonymous   The Largest Arch Bridge in the World . . 340--342
                   Neil Truslow   Stretcher Hammock and Stretcher Chair    342--342
               M. F. Cunningham   Completion of Arrowrock Dam  . . . . . . 343--343
                      Anonymous   Notes for Inventors  . . . . . . . . . . 348--348

Scientific American
Volume 113, Number 17, October 23, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 359--359
                      Anonymous   Inventions New and Interesting . . . . . 364--364
                      Anonymous   Inventions: Recently Patented Inventions 365--365
                      Anonymous   Fall River's Proposed Water Supply
                                  System, Nature as a Canal Builder, and
                                  more . . . . . . . . . . . . . . . . . . 353--355
                Herbert T. Wade   Recent Advances in Wireless Measuring
                                  Instruments  . . . . . . . . . . . . . . 356--356
                      Anonymous   The 350-Mile Astor Cup Auto Race . . . . 357--357
              J. B. W. Gardiner   Strategic Moves of the War, October
                                  14th, 1915 . . . . . . . . . . . . . . . 358--358
              Edward F. Bigelow   Portraying the Little Things of Nature   360--361
                      Anonymous   Paving River-Beds with Concrete  . . . . 362--362
                  C. Dienstbach   The Gyrotelescope, Oil-Burning Furnace
                                  for Heat Treatment of Automobile
                                  Springs, and more  . . . . . . . . . . . 363--363
                      Anonymous   Patent Office News Notes for Inventors   364--364

Scientific American
Volume 113, Number 18, October 30, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 379--379
           Henry Norris Russell   The Heavens in November, 1915  . . . . . 382--383
                      Anonymous   Inventions New and Interesting . . . . . 384--384
                      Anonymous   Inventions: Recently Patented Inventions 385--386
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 388--388
                      Anonymous   How the Slides Develop at Panama, Shall
                                  we Take a Cold Bath to Cool Off After
                                  Exercising?, and more  . . . . . . . . . 373--375
                      Anonymous   The Wrecking of the Cruiser Emden by
                                  Shell Fire . . . . . . . . . . . . . . . 376--376
                      Anonymous   Aerial Range-Finding with Electrical
                                  ``Ears'' . . . . . . . . . . . . . . . . 377--377
              J. B. W. Gardiner   Strategic Moves of the War, October
                                  21st, 1915 . . . . . . . . . . . . . . . 378--378
                 J. F. Springer   The Great Gas Tunnel Under the East
                                  River  . . . . . . . . . . . . . . . . . 380--381
                Dwight Douglass   Tennis as Compared to Golf . . . . . . . 383--383
              Dorsey Richardson   Apparatus for Determining Quality and
                                  Intensity of Violin Tones  . . . . . . . 384--384

Scientific American
Volume 113, Number 19, November 6, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 397--397
                      Anonymous   Inventions: Recently Patented Inventions 406--406
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 417--418
                      Anonymous   Three Thousand-Volt Direct-Current
                                  Electric Locomotives, The Freedom of the
                                  Seas, and more . . . . . . . . . . . . . 391--393
               E. Woodward Duke   Nationalization of the National Guard    394--395
              J. B. W. Gardiner   Strategic Moves of the War, October
                                  27th, 1915 . . . . . . . . . . . . . . . 396--396
                 Joseph Brinker   Motor Trucks and Modern Warfare  . . . . 398--399
               Thomas H. Norton   The Dyestuff Famine. --- I . . . . . . . 400--400
                      Anonymous   Training of the War's Maimed, Halt and
                                  Blind  . . . . . . . . . . . . . . . . . 401--401
                      Anonymous   The Industrial Coach . . . . . . . . . . 402--403
             Edward C. Crossman   Penetration of Bullets . . . . . . . . . 404--405
                      Anonymous   The Effect of Acetylene on Metals,
                                  Delusions About Underground Water, and
                                  more . . . . . . . . . . . . . . . . . . 408--409
                    J. D. Pryor   Dog Eat Dog in Business  . . . . . . . . 409--410
                      Anonymous   Old-fashioned Gun Powders, Notes for
                                  Inventors  . . . . . . . . . . . . . . . 415--417

Scientific American
Volume 113, Number 2, July 10, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 43--43
                      Anonymous   Inventions: Recently Patented Inventions 50--52
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 55--55
                      Anonymous   The War Significance of Cotton, The
                                  Navy's Most Pressing Need, and more  . . 38--39
                      Anonymous   At the Panama--California Exposition at
                                  San Diego  . . . . . . . . . . . . . . . 40--40
                 J. Cecil Alter   Aerial Loops at Night, The Current
                                  Supplement, and more . . . . . . . . . . 41--41
                      Anonymous   The Strategic Moves of the War . . . . . 42--43
                  C. Dienstbach   Our First Naval Dirigible  . . . . . . . 44--44
                  M. K. Barnett   The New French Battleship ``Tourville''  45--45
                      Anonymous   Railroads Under and Over the Streets of
                                  New York --- I . . . . . . . . . . . . . 46--47
                 S. A. Mitchell   Systematic Observation of Meteors  . . . 48--53
               Arthur Macdonald   Stealing Bases in Baseball as a
                                  Psychologist Sees It . . . . . . . . . . 53--56

Scientific American
Volume 113, Number 20, November 13, 1915

                      Anonymous   Inventions New and Interesting . . . . . 431--431
                      Anonymous   Inventions: Recently Patented Inventions 432--432
                      Anonymous   Notes and Queries  . . . . . . . . . . . 436--436
         Frederick Eppelsheimer   Twin-Six Engines for Aeroplanes,
                                  Missing!, and more . . . . . . . . . . . 421--424
           Chas. H. R. Campbell   Malarial Mosquitoes as the Food of Bats  425--425
              J. B. W. Gardiner   Strategic Moves of the War, November
                                  4th, 1915  . . . . . . . . . . . . . . . 426--426
               Thomas H. Norton   The Dyestuff Famine. --- II  . . . . . . 427--427
                   J. B. Taylor   Microscopic Study of the Phonograph  . . 428--429
                Dwight Douglass   Science as an Aid to Practical Tennis,
                                  Observation Mines for Harbor Protection  430--430

Scientific American
Volume 113, Number 21, November 20, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 447--447
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 452--452
                      Anonymous   Inventions: Recently Patented Inventions 453--454
                      Anonymous   Book Review: New Books, Etc. . . . . . . 456--456
                      Anonymous   The World's Largest Rapid Sand Filter,
                                  Dry Cleaning at Home, and more . . . . . 441--443
                      Anonymous   Electrifying the Philadelphia--Paoli
                                  Division of the Pennsylvania R.R.  . . . 444--444
             Charles Alma Byers   Self-Lighting Attachment for Smudge
                                  Pots, Transportable Stall Mounted on
                                  Motor Truck, and more  . . . . . . . . . 445--445
                      Anonymous   Waste Heat to Stimulate Plant Growth,
                                  Poisonous Sprays . . . . . . . . . . . . 445--445
              Frederic R. Honey   Time Measured Graphically  . . . . . . . 446--446
                Herbert T. Wade   Efficiency in the Household  . . . . . . 448--449
             Robert G. Skerrett   Providing a Ship with Ears . . . . . . . 450--451

Scientific American
Volume 113, Number 22, November 27, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 467--467
           Henry Norris Russell   The Heavens in December, 1915  . . . . . 470--471
                      Anonymous   Inventions New and Interesting . . . . . 472--472
                      Anonymous   Inventions: Recently Patented Inventions 474--474
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 476--476
                 W. J. L. Kiehl   Flooring the Sea with Concrete, Death of
                                  Theodore Berliner, and more  . . . . . . 461--463
                   Neal Truslow   The Machine-Gun and its Development  . . 464--464
                      Anonymous   A Car with Electro-Magnetic Transmission 465--465
              J. B. W. Gardiner   Strategic Moves of the War, November
                                  17th, 1915 . . . . . . . . . . . . . . . 466--466
                  Jacques Boyer   Manufacture of Steel Helmets for the
                                  French Soldiers  . . . . . . . . . . . . 468--469
                      Anonymous   A Shell with a Base-Cap that Precludes
                                  Premature Explosion  . . . . . . . . . . 469--469

Scientific American
Volume 113, Number 23, December 4, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 487--487
                      Anonymous   Inventions: Recently Patented Inventions 498--500
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 510--510
                      Anonymous   ``The Valor of Ignorance'', Pulp From
                                  Cotton Stalks, and more  . . . . . . . . 482--483
                  M. K. Barnett   Recent German Naval Construction . . . . 484--484
                 E. H. Colpitts   The Future of Radio Telephony  . . . . . 485--485
       Lieut. J. B. W. Gardiner   Strategic Moves of the War, November
                                  24th, 1915 . . . . . . . . . . . . . . . 486--486
              Charles B. Brewer   The Passing of the Steam Locomotive  . . 488--489
                    Carl Hering   Future Possibilities of Electricity  . . 490--490
                Carl F. Jeansen   The Manufacture of English 12-Inch Guns  491--491
                        E. Dunn   The Intermittent Waterfall . . . . . . . 492--493
                      Anonymous   Electricity in Present-Day Warfare . . . 494--495
               P. Wilcox Gumaer   Electric Heating and Cooking . . . . . . 496--496

Scientific American
Volume 113, Number 24, December 11, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 519--519
                      Anonymous   Inventions New and Interesting . . . . . 524--525
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 528--528
             Robert G. Skerrett   A New Form of the Fighting Aircraft,
                                  Unmuzzling Our Naval and Military
                                  Officers, and more . . . . . . . . . . . 513--515
                      Anonymous   How a Rifle is Sighted . . . . . . . . . 516--517
                      Anonymous   Difficult House-Moving Feat to Save
                                  Trees, Labor-Saving Equipment for
                                  Concrete Road Building, and more . . . . 517--517
                      Anonymous   Strategic Moves of the War, December
                                  4th, 1915  . . . . . . . . . . . . . . . 518--518
              Walter L. Beasley   Relics of Ancient Costa Rica . . . . . . 520--520
              Charles M. Maigne   Bog Moss for Surgical Dressings  . . . . 521--521
             Vaughan MacCaughey   Hawaiian Blowholes, Recent Completion of
                                  the Kensico Reservoir  . . . . . . . . . 522--523
                      Anonymous   Converted Automobile as Motive Power for
                                  Mine Cars, Remote Controlled Electric
                                  Piano for Picture Theaters, and more . . 523--523

Scientific American
Volume 113, Number 25, December 18, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 539--539
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 544--544
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 548--548
             Robert G. Skerrett   The Active Gyroscope as a Ship
                                  Stabilizer, The President on our
                                  Merchant Marine, and more  . . . . . . . 533--535
                Herbert T. Wade   Radio Inspectors and their Work  . . . . 536--537
                      Anonymous   Strategic Moves of the War, December
                                  11th, 1915 . . . . . . . . . . . . . . . 538--538
                Neal A. Truslow   The Transparent Aeroplane  . . . . . . . 539--539
                      Anonymous   Submarine or Battleship --- Which? . . . 540--540
                      Anonymous   New York's Testing Laboratory  . . . . . 541--542
           Huntington Smith and   
              William L. Puffer   Killing Animals by Electricity . . . . . 542--543
                      Anonymous   Combination Scoop and Scale for Material
                                  in Bulk, Time-Saving Rule Case for
                                  News-paper Printers, and more  . . . . . 543--543

Scientific American
Volume 113, Number 26, December 25, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 557--557
                      Anonymous   Inventions New and Interesting . . . . . 562--562
                      Anonymous   Inventions: Recently Patented Inventions 563--563
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 566--566
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 567--567
                      Anonymous   A Well Rounded Fleet, A Flight of Fancy,
                                  and more . . . . . . . . . . . . . . . . 552--553
                Herbert T. Wade   The Freight Congestion at the Port of
                                  New York . . . . . . . . . . . . . . . . 554--555
         Baron Ladis\las D'orcy   Progress of the Seagoing Flying Boat . . 555--555
                      Anonymous   Strategic Moves of the War, December
                                  16th, 1915 . . . . . . . . . . . . . . . 556--556
             Leigh F. J. Zerbee   Explanation of the Double Report of
                                  Gunfire  . . . . . . . . . . . . . . . . 557--557
                 Arthur Chapman   A Government Fossil Tract in Utah  . . . 558--558
                Carl Dienstbach   Christmas in the Air, Benzine Tractor,
                                  for Railway and Road Service, and more   559--561
                      Anonymous   United States Patents Issued for Week
                                  Ending December 28th, 1915 . . . . . . . 567--567

Scientific American
Volume 113, Number 3, July 17, 1915

                      Anonymous   Target Practice in Our Navy, Light on
                                  the Seamen's Bill, and more  . . . . . . 58--59
              Herbert T. Walker   A Contrast in Locomotive Practice  . . . 60--61
                      Anonymous   The Strategic Moves of the War . . . . . 62--62
             Charles F. Bolduan   Why do Men over Forty Break Down?  . . . 63--63
                      Anonymous   Disk Talking Machine Records Made By
                                  Anyone, United States Battleship
                                  ``California'' and Class . . . . . . . . 63--63
                      Anonymous   Railroads Under and Over the Streets of
                                  New York --- II  . . . . . . . . . . . . 64--65
               John S. Harwhite   The Motor Truck and the Road . . . . . . 66--68
                      Anonymous   Portable Shield for Soldiers, An
                                  Excavating Machine that Walks, and more  68--68
                      Anonymous   The Current Supplement . . . . . . . . . 71--71

Scientific American
Volume 113, Number 4, July 24, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 79--79
                      Anonymous   Inventions New and Interesting . . . . . 84--84
                      Anonymous   Inventions: Recently Patented Inventions 85--85
                      Anonymous   The Bureau of Invention and Development,
                                  Governmental Indifference to Invention,
                                  and more . . . . . . . . . . . . . . . . 74--75
                   C. H. Claudy   The Heart of the Locomotive  . . . . . . 76--77
               Matthew E. Hanna   Strategic Moves of the War --- July
                                  14th, 1915 . . . . . . . . . . . . . . . 78--78
              J. Bernard Walker   Which is the Most Powerful Battleship?   80--81
              H. Colin Campbell   What Amount of Water Should be used in
                                  Concrete Mixtures, Digging Battlefield
                                  Trenches by Machine, and more  . . . . . 81--83
              L. William Thavis   Certified Watches, Pranks of a Cyclone,
                                  and more . . . . . . . . . . . . . . . . 83--83
                      Anonymous   The Thermaphone, Resurrecting a Dead
                                  Battery  . . . . . . . . . . . . . . . . 87--87

Scientific American
Volume 113, Number 5, July 31, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 95--95
           Henry Norris Russell   The Heavens in August  . . . . . . . . . 100--104
                      Anonymous   Inventions: Recently Patented Inventions 101--101
                      Anonymous   The Price of Frightfulness, The
                                  Laboratory's the Thing, and more . . . . 90--91
                      Anonymous   Fuel Oil for Locomotives . . . . . . . . 92--93
               Matthew E. Hanna   Strategic Moves of the War --- July
                                  21st, 1915, and more . . . . . . . . . . 94--95
                      Anonymous   Railroad Building Under and Over the
                                  Streets of New York --- III  . . . . . . 96--97
                Marcus Benjamin   William Wallace Campbell, New War Cars
                                  for Our Army . . . . . . . . . . . . . . 98--98
                  Percy Collins   Burrowing Animals  . . . . . . . . . . . 99--99
                      Anonymous   An Attachment for Stereoscopic Cameras
                                  for Taking Ordinary Pictures . . . . . . 103--103

Scientific American
Volume 113, Number 6, August 7, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 119--119
                      Anonymous   Inventions: Recently Patented Inventions 121--123
                      Anonymous   Notes and Queries  . . . . . . . . . . . 131--132
                      Anonymous   Book Review: New Books, Etc. . . . . . . 132--132
                      Anonymous   We Should Build Battle-Cruisers,
                                  Inventors Too Cautious, and more . . . . 106--107
              J. Bernard Walker   Twelve Months of the Great Naval War . . 108--109
               Matthew E. Hanna   The First Year of the Great War  . . . . 110--111
             Edward F. Chandler   The Modern Automobile Torpedo  . . . . . 112--114
          Henry Harrison Suplee   Connecticut to Poland by Way of the
                                  Pacific  . . . . . . . . . . . . . . . . 115--115
                  Jacques Boyer   Proving Grounds for French Artillery . . 116--117
             Edward C. Crossman   Telescope Sights for Fighting Rifles . . 118--119
                      Anonymous   Sir Sanford Fleming, A Dynamic
                                  Conception of the Organic Individual,
                                  and more . . . . . . . . . . . . . . . . 119--120
                      Anonymous   Notes for Inventors  . . . . . . . . . . 124--124
                      Anonymous   Cost of Radium Greatly Reduced . . . . . 130--130

Scientific American
Volume 113, Number 8, August 21, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 159--159
                      Anonymous   Inventions New and Interesting . . . . . 165--165
                      Anonymous   Inventions: Recently Patented Inventions 166--166
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 172--172
                      Anonymous   The Largest Hydraulic Motor,
                                  Photographic Determination of Stellar
                                  Parallaxes with the 60-inch Reflector of
                                  Mount Wilson Observatory, and more . . . 153--156
              Herbert T. Walker   The Locomotive of the Future . . . . . . 156--156
                      Anonymous   The United States Lighthouse Service . . 157--157
               Matthew E. Hanna   Strategic Moves of the War --- August
                                  11th, 1915 . . . . . . . . . . . . . . . 158--159
             Robert G. Skerrett   A Notable Step in the Building of New
                                  York's Great Piers . . . . . . . . . . . 160--161
             Ernest F. Beaumont   Farming in Palestine . . . . . . . . . . 162--164
                      Anonymous   Edible Wood, Windmills where Hurricanes
                                  Prevail  . . . . . . . . . . . . . . . . 171--171

Scientific American
Volume 113, Number 9, August 28, 1915

                      Anonymous   Correspondence . . . . . . . . . . . . . 181--181
                      Anonymous   Inventions: Recently Patented Inventions 187--187
                      Anonymous   The Greatest Technical Blunder of the
                                  War, The National Academy of Sciences
                                  and the National Government, and more    176--179
           Harry Chapin Plummer   Safety Spurs for a Railroad Grade, The
                                  Current Supplement, and more . . . . . . 179--179
               Matthew E. Hanna   Strategie Moves of the War --- August
                                  19th, 1915 . . . . . . . . . . . . . . . 180--180
                   Neal Truslow   Captive Balloons on the French Front . . 181--181
                      Anonymous   The Business Men's Training Camp at
                                  Plattsburg . . . . . . . . . . . . . . . 182--183
                 A. M. Jungmann   Artificial Immunity Against Typhoid
                                  Fever  . . . . . . . . . . . . . . . . . 184--186
               Arthur Macdonald   The Psychology of Baseball,
                                  Vividiffusion Experiments on the Ammonia
                                  of the Circulating Blood, and more . . . 188--189


Scientific American
Volume 114, Number 1, January 1, 1916

           Henry Norris Russell   The Heavens in January . . . . . . . . . 28--28
                      Anonymous   Inventions: Recently Patented Inventions 30--30
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 48--50
                      Anonymous   Notes and Queries  . . . . . . . . . . . 51--52
                      Anonymous   Retrospect of the Year 1915  . . . . . . 6--7
                      Anonymous   Balls and Ball Bearings  . . . . . . . . 8--9
                 Victor W. Page   The Automobile of 1916 . . . . . . . . . 10--11
                   Henry B. Joy   Seeing America and the Lincoln Highway   12--13
                   Allen Rogers   The Effect of Technical Education Upon
                                  the Leather Industry . . . . . . . . . . 14--15
                      Anonymous   Development in Commercial Vehicle Design 16--17
                  H. S. Whiting   Saving the Car by Careful Driving  . . . 18--18
                      Anonymous   The Knight-Type Sleeve-Valve Motor . . . 19--19
                      Anonymous   New Accessories for the Automobile . . . 20--21
                      Anonymous   Electric Starting and Lighting Systems   22--23
               Chas. F. Barrett   The ``Blind Turn'' . . . . . . . . . . . 24--24
               Alexander Winton   Father Time the Only Official Tester . . 24--24
                  J. G. Vincent   Development of the American Motor Car
                                  that Has Led Up to the V-Type
                                  Multi-Cylinder Motor . . . . . . . . . . 26--26
               C. Edward Palmer   A Car for Every Prospective Purchaser    32--32
                      Anonymous   Prices of Leading Electric Pleasure Cars
                                  for 1916 . . . . . . . . . . . . . . . . 34--34
               C. Edward Palmer   Ready Reference Table of Commercial
                                  Vehicles for 1916  . . . . . . . . . . . 34--34
                      Anonymous   Price List of Leading Electric
                                  Commercial Vehicles for 1916 . . . . . . 36--36
                      Anonymous   Death of James M. Dodge, Motor Truck
                                  Notes, and more  . . . . . . . . . . . . 46--47

Scientific American
Volume 114, Number 10, March 4, 1916

           Henry Norris Russell   The Heavens in March, 1916 . . . . . . . 248--248
                      Anonymous   Inventions: Recently Patented Inventions 256--256
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 267--267
                      Anonymous   Notes and Queries  . . . . . . . . . . . 268--272
                 W. J. L. Kiehl   Holland in the Grip of its Old Enemy,
                                  Preparedness in the Chemical Industries,
                                  and more . . . . . . . . . . . . . . . . 235--236
               Franklin K. Lane   Economic Preparedness  . . . . . . . . . 237--237
                   Martin Wells   Women Workers of France  . . . . . . . . 238--239
                  Miner Chipman   Industrial Preparedness for Peace  . . . 240--240
             Edward Ewing Pratt   Commercial America and the War . . . . . 241--241
                C. J. Blanchard   Making the Desert Bloom  . . . . . . . . 242--243
                      Anonymous   The Naval Losses of the Allies . . . . . 244--245
                      Anonymous   Strategic Moves of the War, February
                                  24th, 1916 . . . . . . . . . . . . . . . 246--246
               Thomas H. Norton   The American Conquest of the Air . . . . 247--247
                 Victor W. Page   Features of 1916 Motor Truck Design  . . 250--251
                C. T. Southwick   Keep Your Going Business Going . . . . . 265--265
                      Anonymous   A New Fire-Damp Tester . . . . . . . . . 266--267

Scientific American
Volume 114, Number 11, March 11, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 281--281
                      Anonymous   Inventions: Recently Patented Inventions 286--286
                 Joseph Brinker   America's First Motor Truck Battery,
                                  Preparedness That Prepares, and more . . 275--277
       Lieut. Guido von Horvath   The War Game. --- I  . . . . . . . . . . 278--279
                      Anonymous   Strategic Moves of the War, March 3rd,
                                  1916 . . . . . . . . . . . . . . . . . . 280--280
                      Anonymous   Modern Bread Baking  . . . . . . . . . . 282--283
                      Anonymous   The Naval Losses of the Germans and
                                  their Allies . . . . . . . . . . . . . . 284--284
             Robert G. Skerrett   A New Use for the Seismograph, Cheap
                                  Fireproof Roofing in Demand in the
                                  Philippines, and more  . . . . . . . . . 284--285
                      Anonymous   Notes for Inventors  . . . . . . . . . . 290--290

Scientific American
Volume 114, Number 12, March 18, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 301--301
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 306--306
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 312--312
                      Anonymous   Inventions: Recently Patented Inventions 313--314
             Robert G. Skerrett   Widening the Range of the Fleet's Eyes
                                  by Means of the Aeroplane Catapult, A
                                  Study of Fog at Sea, and more  . . . . . 295--297
                      Anonymous   Operating Trains across the Great Divide
                                  by Power from Water Falls  . . . . . . . 298--298
                    L. R. Perry   Million-Volt Commercial Frequency
                                  Transformer  . . . . . . . . . . . . . . 299--299
                  Miner Chipman   Industrial Preparedness for Peace  . . . 300--300
                      Anonymous   German Military Railroad Organizations
                                  at Work  . . . . . . . . . . . . . . . . 302--303
                      Anonymous   Strategic Moves of the War, March 10th,
                                  1916 . . . . . . . . . . . . . . . . . . 304--305

Scientific American
Volume 114, Number 13, March 25, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 325--325
                      Anonymous   Inventions: Recently Patented Inventions 331--332
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 338--338
                      Anonymous   Our Varnishing Export Trade in the
                                  Products of American Forests, Industrial
                                  Preparedness for War, and more . . . . . 319--321
              Herbert T. Walker   A Coal-Dust Locomotive . . . . . . . . . 322--322
               Sydney F. Walker   An Ingenious Gas Turbine Developed in
                                  Germany, A Typewriter That Copies with
                                  its Own Eye  . . . . . . . . . . . . . . 322--323
                J. Andrew White   Unit Design in Marine Wireless
                                  Telegraphy . . . . . . . . . . . . . . . 323--323
                      Anonymous   Strategic Moves of the War, March 17th,
                                  1916 . . . . . . . . . . . . . . . . . . 324--324
                      Anonymous   On the Trail of Villa  . . . . . . . . . 326--327
        Lieut Guido von Horvath   The War Game --- II  . . . . . . . . . . 328--329
                Chas. W. Person   Over the Whirlpool by Aerial Cable . . . 330--330

Scientific American
Volume 114, Number 14, April 1, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 349--349
           Henry Norris Russell   The Heavens in April, 1916 . . . . . . . 358--358
                      Anonymous   Inventions New and Interesting . . . . . 359--359
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 369--372
                      Anonymous   Our Naval Secretary, Trademark
                                  Legislation, and more  . . . . . . . . . 344--344
                      Anonymous   The Army Bills in Congress . . . . . . . 345--345
                    H. D. Jones   A Successful Experiment in Skunk Farming 346--347
                      Anonymous   Naval Consulting Board's Committee on
                                  Industrial Preparedness --- I  . . . . . 348--348
                Stuart B. Stone   Preparedness for Peace in the Mineral
                                  Industries . . . . . . . . . . . . . . . 350--351
              Guido von Horvath   War Game --- III . . . . . . . . . . . . 352--354
                 Arthur Kennedy   Fencing Tournaments for Blind Men  . . . 355--355
                      Anonymous   Strategic Moves of the War, March 24th,
                                  1916 . . . . . . . . . . . . . . . . . . 356--356
       Sergeant Frederick Kuhne   The Origin, Classification and uses of
                                  Finger Prints  . . . . . . . . . . . . . 357--357
                      Anonymous   Legal Notices  . . . . . . . . . . . . . 367--369

Scientific American
Volume 114, Number 15, April 8, 1916

                      Anonymous   Inventions: Recently Patented Inventions 386--386
                     N. L. Drew   Building the World's Highest Highway,
                                  The Arms and the Man, and more . . . . . 375--377
                Alston Hamilton   The Extreme Ranges of Modern Guns  . . . 378--379
                      Anonymous   Strategic Moves of the War, March 31st,
                                  1916 . . . . . . . . . . . . . . . . . . 380--380
                      Anonymous   Naval Consulting Board's Committee on
                                  Industrial Preparedness --- II . . . . . 381--381
             J. Gordon Dorrance   Wood Waste --- I . . . . . . . . . . . . 382--383
              Guido von Horvath   War Game --- IV  . . . . . . . . . . . . 384--385

Scientific American
Volume 114, Number 16, April 15, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 401--401
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 406--407
                      Anonymous   Inventions: Recently Patented Inventions 408--408
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 414--414
                    Edwin Cerio   The Rapid-fire, ``Revolver'' Principle
                                  Applied to the Submarine Torpedo Tube,
                                  Militarism and the Militia, and more . . 395--399
              J. O'Malley Irwin   Is the Chinese Dragon Based on Fact, Not
                                  Mythology? . . . . . . . . . . . . . . . 399--399
                  Miner Chipman   Industrial Preparedness for Peace  . . . 400--400
                J. A. McCracken   Increasing the Profits in Flax Mills . . 402--403
                      Anonymous   Strategic Moves of the War, April 7th,
                                  1916 . . . . . . . . . . . . . . . . . . 404--404
              Guido von Horvath   War Game --- V . . . . . . . . . . . . . 405--405
                      Anonymous   The Gasoline Situation . . . . . . . . . 410--410

Scientific American
Volume 114, Number 17, April 22, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 425--425
                      Anonymous   Inventions New and Interesting . . . . . 430--430
                      Anonymous   Inventions: Recently Patented Inventions 432--432
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 438--438
                      Anonymous   Preventing Coal Mine Explosions with a
                                  Spray of Rock Dust, Arsenic in the Hair,
                                  and more . . . . . . . . . . . . . . . . 419--422
              George A. Burrell   Portable Apparatus for the Detection of
                                  Combustible Gases in Air . . . . . . . . 422--422
                 Joseph Brinker   Civilian Motor Trucks as Army Supply
                                  Trains . . . . . . . . . . . . . . . . . 423--423
                      Anonymous   Strategic Moves of the War, April 14th,
                                  1916 . . . . . . . . . . . . . . . . . . 424--424
             J. Gordon Dorrance   Wood Wastes --- II . . . . . . . . . . . 426--427
              Guido von Horvath   War Game --- VI  . . . . . . . . . . . . 428--429

Scientific American
Volume 114, Number 18, April 29, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 449--449
           Henry Norris Russell   The Heavens in May, 1916 . . . . . . . . 452--452
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 458--458
             Robert G. Skerrett   Unique Equipment for the Unwatering of
                                  New York City's Great Aqueduct, The
                                  Problem of Mexico, and more  . . . . . . 443--445
                  Jacques Boyer   Automobile Dental Shop of the French
                                  Army, A Detachable Headlight Dimmer of
                                  Novel Design, and more . . . . . . . . . 446--447
                      Anonymous   Strategic Moves of the War, April 21st,
                                  1916 . . . . . . . . . . . . . . . . . . 448--448
                      Anonymous   Mexico: Its Political Situation, Its
                                  Resources, and its Military Strength . . 450--451
              Guido von Horvath   War Game --- VII . . . . . . . . . . . . 453--454
                  E. G. Fischer   The New Triangulation Signal Lamp of the
                                  U.S. Coast and Geodetic Survey, A House
                                  Built with Fifty-Six Varieties of Cement 454--454

Scientific American
Volume 114, Number 19, May 6, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 469--469
                      Anonymous   Inventions: Recently Patented Inventions 482--482
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 495--495
                      Anonymous   Notes and Queries  . . . . . . . . . . . 496--500
             Robert G. Skerrett   New Aviation Beacons that Make Safe the
                                  Landing of Aircraft at Night, Steel Cars
                                  on Railway in India, and more  . . . . . 463--465
                      Anonymous   The Problem of Gasoline Supply . . . . . 466--467
                      Anonymous   Proposed Improvement of New York's
                                  Hudson River Front . . . . . . . . . . . 467--467
                      Anonymous   Strategic Moves of the War, April 28th,
                                  1916 . . . . . . . . . . . . . . . . . . 468--468
              Walter I. Beasley   Building a Cave at the American Museum
                                  of Natural History . . . . . . . . . . . 470--470
    Charles Arthur Vandermuelen   An Ice Mine that Freezes in Summer and
                                  Melts in Winter, The Frog as an
                                  Entertainer in Motion Pictures, and more 470--471
       William Bond Wheelwright   The Paper Situation  . . . . . . . . . . 472--473
                George H. Bruce   How May the Permanent Success of Our Dye
                                  Industries be Secured? . . . . . . . . . 473--473
                 F. S. McMurray   Out Nautical Schoolships . . . . . . . . 474--475
                 Geo. P. Jewell   How Gun Pressures are Measured, Putting
                                  the American Paper Industry on a
                                  Scientific Basis, and more . . . . . . . 475--475
              Guido von Horvath   War Game --- VIII  . . . . . . . . . . . 476--477
             Edward C. Crossman   Cartridge Cases of Steel . . . . . . . . 478--479
                    O. R. Geyer   Blasting a Canal Through a River Bottom  479--479
                      A. Meyers   The New Quebec Bridge  . . . . . . . . . 480--481

Scientific American
Volume 114, Number 2, January 8, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 59--59
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 64--64
                      Anonymous   Recently Patented Inventions . . . . . . 65--66
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 68--70
                      Anonymous   Industrial Preparedness for Peace, The
                                  Navy We Need, and more . . . . . . . . . 54--54
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 55--55
                      Anonymous   Science  . . . . . . . . . . . . . . . . 55--55
                      Anonymous   Industrial Efficiency  . . . . . . . . . 55--55
                   Karl B. Lamb   Textile Fibres and Their Characteristics 56--57
                      Anonymous   Strategic Moves of the War, December
                                  30th, 1915 . . . . . . . . . . . . . . . 58--58
                 Hinton Gilmore   Curing by Machinery  . . . . . . . . . . 60--61
              Frederic R. Honey   Morning and Evening Stars for 1916 . . . 62--63
                      Anonymous   New York to Chicago --- a Thousand Miles
                                  --- on a Gallon of Oil --- Another
                                  World's Record for the Franklin Car  . . 67--67
                      Anonymous   Death of Thomas F. Richardson  . . . . . 68--68

Scientific American
Volume 114, Number 20, May 13, 1916

                  G. T. Carliss   Inventions New and Interesting . . . . . 513--513
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 518--518
         Baron Ladis\las d'Orcy   Super-Zeppelins, An Inverted Pyramid,
                                  and more . . . . . . . . . . . . . . . . 503--506
               Carl E. Seashore   Using the Eye Instead of the Ear in the
                                  Training of a Musician, Seaweeds as a
                                  Commercial Fertilizer, and more  . . . . 506--508
                      Anonymous   Strategic Moves of the War, May 5th,
                                  1916 . . . . . . . . . . . . . . . . . . 508--508
              Guido von Horvath   War Game --- IX  . . . . . . . . . . . . 509--509
               Edward H. Huxley   A Survivor's Impressions of the
                                  ``Sussex'' Disaster and Observations in
                                  London and Petrograd . . . . . . . . . . 510--511
                      Anonymous   The Patrol Squadron  . . . . . . . . . . 511--512
                   G. R. Thomas   Manufacturing American Artificial Limbs
                                  in England . . . . . . . . . . . . . . . 513--520

Scientific American
Volume 114, Number 21, May 20, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 529--529
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 534--535
                      Anonymous   Inventions: Recently Patented Inventions 536--536
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 542--542
                  Kirk McFarlin   The Difficulties of Railroad Maintenance
                                  in Alaska, A National Calamity, and more 523--525
                  Miner Chipman   Industrial Preparedness for Peace  . . . 526--527
              S. Leonard Bastin   Feeding a Pumpkin with a Sugar Solution  527--527
                      Anonymous   Strategic Moves of the War, May 12th,
                                  1916 . . . . . . . . . . . . . . . . . . 528--528
                 Cleveland Abbe   How the United States Weather Bureau was
                                  Started  . . . . . . . . . . . . . . . . 529--529
             Richmond K. Turner   The Size of Naval Guns . . . . . . . . . 530--530
                      Anonymous   Modernizing Mississippi River
                                  Transportation . . . . . . . . . . . . . 531--531
              Guido von Horvath   War Game --- X . . . . . . . . . . . . . 532--533
              Alfred Gradenwitz   A Pen that Permits of Writing with the
                                  Mouth  . . . . . . . . . . . . . . . . . 533--533

Scientific American
Volume 114, Number 22, May 27, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 553--553
                      Anonymous   Inventions New and Interesting . . . . . 558--558
                      Anonymous   Inventions: Recently Patented Inventions 560--560
                      Anonymous   Turning Out Crops on Schedule Time, The
                                  Report of the Conference Committee on
                                  the Army Bill, and more  . . . . . . . . 547--549
             J. Gordon Dorrance   Shipbuilding Resuming its Old-time
                                  Importance in American Commerce and
                                  Industry, Activity of Our Shipyards
                                  Since the Outbreak of the European War   550--551
                      Anonymous   A Machine that Picks Cotton without
                                  Injuring the Plant . . . . . . . . . . . 551--551
                      Anonymous   Strategic Moves of the War, May 19th,
                                  1916 . . . . . . . . . . . . . . . . . . 552--552
             Edward C. Crossman   How Guns are Blown Up  . . . . . . . . . 554--554
                      Anonymous   Why America Lost Second Place  . . . . . 555--555
              Guido von Horvath   War Game --- XI  . . . . . . . . . . . . 556--557
                    L. Corthell   Death of Elmer, Recent Paper Statistics,
                                  and more . . . . . . . . . . . . . . . . 565--566

Scientific American
Volume 114, Number 23, June 3, 1916

           Henry Norris Russell   The Heavens in June, 1916  . . . . . . . 588--588
                      Anonymous   Inventions New and Interesting . . . . . 589--589
                      Anonymous   Inventions: Recently Patented Inventions 592--592
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 610--610
                    Frank Rabak   Utilization of Cherry Waste Products,
                                  Germany's Strategic Hold on American
                                  Industries, and more . . . . . . . . . . 573--575
                  W. S. Gifford   Realizing Industrial Preparedness  . . . 576--576
                   Allan Rogers   The Technically Trained Foreman  . . . . 577--577
               Thomas H. Norton   A Census of Colors . . . . . . . . . . . 578--578
                      Anonymous   Strategic Moves of the War, May 26th,
                                  1916 . . . . . . . . . . . . . . . . . . 579--579
               Samuel J. Record   Our Present and Future Sources of
                                  Vegetable Tannins  . . . . . . . . . . . 580--581
              Coker F. Clarkson   Government Transportation Plans  . . . . 582--582
                      Anonymous   A University to Order  . . . . . . . . . 583--583
                 Victor W. Page   Plain Facts About Kerosene Carburetors   584--585
             Edward Ewing Pratt   Our New Industries . . . . . . . . . . . 586--586
              Guido von Horvath   War Game --- XII . . . . . . . . . . . . 587--587
                 Grosvenor Dawe   Agricultural Unpreparedness  . . . . . . 596--596

Scientific American
Volume 114, Number 24, June 10, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 619--619
                      Anonymous   Inventions New and Interesting . . . . . 624--624
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 627--628
         Baron Ladis\las d'Orcy   A Novel British Airship, What is
                                  Adequate Naval Preparedness?, and more   613--615
                      Anonymous   Safety First . . . . . . . . . . . . . . 616--617
                      Anonymous   Strategic Moves of the War, June 2nd,
                                  1916 . . . . . . . . . . . . . . . . . . 618--618
             Leigh F. J. Zerbee   The Physics of a Smoke Ring  . . . . . . 618--618
                  C. Dienstbach   The War-Zeppelin . . . . . . . . . . . . 619--619
                 Monroe Woolley   From Herring to Halibut  . . . . . . . . 620--621
             Robert G. Skerrett   Electric Probes, Adhesion Tests for
                                  Fabrics in Rubber Industry . . . . . . . 621--621
                  H. S. Gladwin   The \booktitleScientific American War
                                  Game in Miniature  . . . . . . . . . . . 622--623

Scientific American
Volume 114, Number 25, June 17, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 639--639
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 644--644
                      Anonymous   Inventions: Recently Patented Inventions 646--646
                      Anonymous   Notes and Queries  . . . . . . . . . . . 652--652
                      Anonymous   A Beautiful Link in Our Highway System,
                                  Russia, the Ultimate Decisive Factor in
                                  the War, and more  . . . . . . . . . . . 633--635
               Henryk Arctowski   Shackleton's South Polar Expedition  . . 636--636
         Baron Ladis\las d'Orcy   Mastery of the Air vs. Control of the
                                  Sea  . . . . . . . . . . . . . . . . . . 637--637
                      Anonymous   Strategic Moves of the War, June 9th,
                                  1916 . . . . . . . . . . . . . . . . . . 638--638
                      Anonymous   The Great North Sea Battle . . . . . . . 640--643
                 Monroe Woolley   Fighting Locusts with Chlorine Gas . . . 643--643
              S. Leonard Bastin   Testing the Uprush of Sap  . . . . . . . 643--643

Scientific American
Volume 114, Number 26, June 24, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 663--663
                      Anonymous   Inventions New and Interesting . . . . . 668--668
                      Anonymous   Inventions: Recently Patented Inventions 670--670
                      Anonymous   Notes and Queries  . . . . . . . . . . . 673--673
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 674--674
                      Anonymous   Rock Tunneling Without the Use of
                                  Explosives, What the War has Taught
                                  American Industries, and more  . . . . . 657--659
               Samuel J. Record   The Spruce Gum Industry  . . . . . . . . 660--661
                      Anonymous   Strategic Moves of the War, June 15th,
                                  1916 . . . . . . . . . . . . . . . . . . 662--662
              Alfred Gradenwitz   A Model Hospital Train . . . . . . . . . 664--664
                  Jacques Boyer   Newspapers that are Printed Within Gun
                                  Range of the Enemy . . . . . . . . . . . 665--666
                  C. Dienstbach   The Flying Sensation . . . . . . . . . . 667--667

Scientific American
Volume 114, Number 4, January 22, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 99--99
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 106--107
                      Anonymous   Inventions: Recently Patented Inventions 108--109
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 110--110
                      Anonymous   Notes and Queries  . . . . . . . . . . . 111--114
                      Anonymous   A Submarine ``Curtain of Fire'', Should
                                  Science Teaching Be Reformed?, and more  94--95
                  Jacques Boyer   Making of X-Ray Tubes in War Time  . . . 96--96
              S. Leonard Bastin   Simple Food Tests  . . . . . . . . . . . 97--97
                      Anonymous   Strategic Moves of the War, January
                                  13th, 1916 . . . . . . . . . . . . . . . 98--98
               Samuel J. Record   The Pine Needle Oil Industry . . . . . . 100--101
                      Anonymous   Deriving Fat from Yeast, Waste
                                  Newspapers as a Fuel for Military Camps,
                                  and more . . . . . . . . . . . . . . . . 101--103

Scientific American
Volume 114, Number 5, January 29, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 125--125
           Henry Norris Russell   The Heavens in February, 1916  . . . . . 129--130
                      Anonymous   Inventions: Recently Patented Inventions 131--131
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 134--134
                Paul H. Dowling   Taking Salt from the Sea with Modem
                                  Methods  . . . . . . . . . . . . . . . . 119--119
                      Anonymous   Apparent Death in the Realm of Microbes  119--121
                      Anonymous   Supply Ships of the Navy . . . . . . . . 122--122
                   W. F. Wilcox   San Miguel River Canyon Flume --- a
                                  Monument of Gold Mining Failure,
                                  Destruction of Vegetation by Fumes from
                                  Smelters, and more . . . . . . . . . . . 123--123
                James Armstrong   German Commercial Preparedness for Peace 124--124
              Alfred Gradenwitz   A Horses' Hospital . . . . . . . . . . . 126--127
                      Anonymous   Strategic Moves of the War, January
                                  20th, 1916 . . . . . . . . . . . . . . . 128--128
                      Anonymous   Patent Office Transactions for Fiscal
                                  Year Ending June 30, 1915  . . . . . . . 133--134

Scientific American
Volume 114, Number 6, February 5, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 151--151
                      Anonymous   Inventions: Recently Patented Inventions 158--158
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 166--166
                      Anonymous   Notes and Queries  . . . . . . . . . . . 167--168
            Lieut. W. J. Willis   Naval Militia and Preparedness . . . . . 139--141
                      Anonymous   Submarine Warfare  . . . . . . . . . . . 142--143
                  Miner Chipman   Industrial Preparedness for Peace  . . . 144--145
              George W. Perkins   Germany's Example in Preparedness,
                                  ``Strays'' in Wireless Telegraphy  . . . 145--145
               Thomas H. Norton   The Potash Famine  . . . . . . . . . . . 146--146
               Ladis\las d'Orcy   New Developments in Military Aeroplanes  147--147
             Edward C. Crossman   Bayonet Fighting . . . . . . . . . . . . 148--149
                      Anonymous   Strategic Moves of the War, January
                                  27th, 1916 . . . . . . . . . . . . . . . 150--150
              Alfred Gradenwitz   Keeping an Army Supplied . . . . . . . . 152--154
                  Frank W. Very   What is a Comet's Tail?  . . . . . . . . 156--156

Scientific American
Volume 114, Number 7, February 12, 1916

                      Anonymous   Inventions: Recently Patented Inventions 182--182
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 184--185
                      Anonymous   Notes and Queries  . . . . . . . . . . . 186--186
              William H. Tolman   The Seventh Award of the
                                  \booktitleScientific American Medal for
                                  Safety Devices, The Significance of
                                  Science, and more  . . . . . . . . . . . 171--173
                      Anonymous   Voice-controlled Writing Machine . . . . 174--175
                      Anonymous   Strategic Moves of the War, February
                                  4th, 1916  . . . . . . . . . . . . . . . 176--176
               Thomas H. Norton   Industrial Preparedness for Peace  . . . 177--177
                      Anonymous   The Stored Energy of the Submarine . . . 178--179
             Robert G. Skerrett   Feeling Through the Fog by Wireless  . . 180--181

Scientific American
Volume 114, Number 8, February 19, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 197--197
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 202--202
                      Anonymous   Inventions: Recently Patented Inventions 203--204
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 204--204
                      Anonymous   Notes and Queries  . . . . . . . . . . . 208--210
                      Anonymous   Our Latest Superdreadnoughts, Another
                                  Naval Invention!, and more . . . . . . . 191--193
                Herbert T. Wade   Industrial Preparedness Series . . . . . 194--195
                  Jacques Boyer   The Use of X-Rays With Intervals of Red
                                  Illumination, Effect of Static Charge
                                  Upon Rubber, and more  . . . . . . . . . 195--195
                  Miner Chipman   Industrial Preparedness for Peace  . . . 196--196
                   Martin Wells   The Masking of Artillery in the Field    198--199
                      Anonymous   Strategic Moves of the War, February
                                  12th. 1916 . . . . . . . . . . . . . . . 200--201
                      Anonymous   A New Wood Pulp Process  . . . . . . . . 207--207

Scientific American
Volume 114, Number 9, February 26, 1916

                    O. R. Geyer   Coming Restoration of the Mississippi as
                                  an Important Artery of Commerce,
                                  Secretary Daniels and the Naval
                                  Emergency, and more  . . . . . . . . . . 215--217
                    E. K. Roden   Our Navy as a Schoolhouse  . . . . . . . 218--219
               Wallace P. Cohoe   Industrial Preparedness for Peace  . . . 220--220
              Guido von Horvath   General Staff Maps . . . . . . . . . . . 221--221
                   C. E. Lesher   Preparing to Meet a Coal Shortage  . . . 222--223
                      Anonymous   Strategic Moves of the War, February
                                  18th, 1916 . . . . . . . . . . . . . . . 224--224
             Robert G. Skerrett   Remarkable Art Casting by a New Process  225--225
                      Anonymous   Errata . . . . . . . . . . . . . . . . . 230--230


Scientific American
Volume 115, Number 1, July 1, 1916

           Henry Norris Russell   The Heavens in July, 1916  . . . . . . . 16--17
                      Anonymous   Inventions New and Interesting . . . . . 18--18
                      Anonymous   Inventions: Recently Patented Inventions 20--20
                      Anonymous   Notes and Queries  . . . . . . . . . . . 24--24
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 32--32
             Robert G. Skerrett   The Playful Porpoise and its Economic
                                  Value, Cost of Brick Roads in the
                                  Country, and more  . . . . . . . . . . . 3--5
                  Jacques Boyer   Selecting Aviators . . . . . . . . . . . 6--7
               Joseph E. Davies   Industrial Preparedness for Peace  . . . 8--8
                   George Dewey   Lessons of the Battle of Skagerrack  . . 9--9
             Edward C. Crossman   Passing of the Tented City . . . . . . . 10--10
                      Anonymous   Our Blind Army . . . . . . . . . . . . . 11--11
               Marius C. Krarup   The Field for New Achievements in the
                                  Motor Vehicle Industry . . . . . . . . . 12--12
                      Anonymous   Strategic Moves of the War, June 22nd,
                                  1916 . . . . . . . . . . . . . . . . . . 13--13
                      Anonymous   Enlarging Pictures Without a Lens  . . . 14--15

Scientific American
Volume 115, Number 10, September 2, 1916

           Henry Norris Russell   The Heavens in September, 1916 . . . . . 208--208
                      Anonymous   Inventions New and Interesting . . . . . 218--219
                      Anonymous   Inventions: Recently Patented Inventions 220--220
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 229--230
                      Anonymous   Notes and Queries  . . . . . . . . . . . 231--232
                   Neal Truslow   American Aviators with the French Army   203--203
                      Anonymous   Announcement, The Need of the United
                                  States for Naval Scouts and an Auxiliary
                                  Coast-Patrol, and more . . . . . . . . . 204--205
                  Harry Knowles   Blazing a Trail for the Industries . . . 206--206
                  Jacques Boyer   New Types of Artificial Arms for Victims
                                  of the War . . . . . . . . . . . . . . . 207--207
                      Anonymous   Strategic Moves of the War, August 25th,
                                  1916 . . . . . . . . . . . . . . . . . . 209--209
                      Anonymous   Artisans of the Motion Picture Films . . 210--211
                    Ival McPeak   Perfecting a Fire-Proofing Solution  . . 212--212
                 Joseph Brinker   Safety in Sand-blasting  . . . . . . . . 212--212
              William H. Easton   A New Method of Refrigeration, An
                                  Efficient Sewer Cleaner  . . . . . . . . 213--213
                 Monroe Woolley   Industrial Preparedness for Peace  . . . 214--215
              S. Leonard Bastin   The Mystery of the Blue Gum and Malaria  215--215
                      Anonymous   Shadowless Mirror  . . . . . . . . . . . 225--225
                      Anonymous   American Trade Marks and Patents in Peru 227--227
                      Anonymous   New Quarters for the Patent Office . . . 228--228

Scientific American
Volume 115, Number 11, September 9, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 241--241
                      Anonymous   Inventions New and Interesting . . . . . 245--245
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 248--249
                      Anonymous   Notes and Queries  . . . . . . . . . . . 249--249
                      Anonymous   Inventions: Recently Patented Inventions 250--250
             Robert G. Skerrett   A Difficult Piece in Subaqueous Rock
                                  Excavation . . . . . . . . . . . . . . . 235--235
             Robert G. Skerrett   Announcement, Railways and National
                                  Defense, The Bank Check to Invade
                                  Europe, and more . . . . . . . . . . . . 236--237
            Henry W. Frauenthal   The Baffling Epidemic of Infantile
                                  Paralysis  . . . . . . . . . . . . . . . 238--239
                 K. P. Crawford   Large Telescope Built by Students, What
                                  the Telephone Means to the Fighting Men
                                  of Europe  . . . . . . . . . . . . . . . 239--239
                      Anonymous   Strategic Moves of the War, Sept. 1st,
                                  1916 . . . . . . . . . . . . . . . . . . 240--240
                 Victor W. Page   Auto Repair Trucks for Field Service . . 242--243
                 George F. Paul   Armored Car Planned and Built in Four
                                  Weeks, The Current Supplement, and more  243--243
                 Monroe Woolley   Growing Our Own Dates, Growing Shagbark
                                  Hickory for Profit, and more . . . . . . 244--244
               W. S. Standiford   How Steel Bars are Rolled for Use in the
                                  Manufacture of Shrapnel Shells, Using an
                                  Electric Lamp in Place of Ammunition in
                                  Marksmanship Training, and more  . . . . 245--246
                      Anonymous   Clearing of Fog by Electrical
                                  Precipitation  . . . . . . . . . . . . . 248--248

Scientific American
Volume 115, Number 12, September 16, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 261--261
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 266--266
                      Anonymous   Inventions: Recently Patented Inventions 268--268
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 270--270
                      Anonymous   Concrete Sheet Piles, Growth of Canada's
                                  Water and Sewerage Systems, Early
                                  Revival of the South African Diamond
                                  Industry . . . . . . . . . . . . . . . . 255--255
                      Anonymous   The National Research Council, Modern
                                  Artillery and Individual Initiative, and
                                  more . . . . . . . . . . . . . . . . . . 256--257
               Day Allen Willey   Reclaiming the Everglades of Florida . . 258--259
              Oswald T. Carliss   A Machine That Prints One Hundred Miles
                                  of Printed Matter in Ten Hours,
                                  Lobster-Rearing Plant on New England
                                  Coast  . . . . . . . . . . . . . . . . . 259--259
                      Anonymous   Strategic Moves of the War, Sept. 7th,
                                  1916 . . . . . . . . . . . . . . . . . . 260--260
             Robert G. Skerrett   An Unparalleled Salvage Undertaking  . . 262--263
               George C. Thorpe   Logistics, The Current Supplement, and
                                  more . . . . . . . . . . . . . . . . . . 263--263
              S. Leonard Bastin   Curious Hygrometers and Barometers . . . 264--265
                      Anonymous   Trees Planted by Machine . . . . . . . . 269--269

Scientific American
Volume 115, Number 13, September 23, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 281--281
                      Anonymous   Inventions New and Interesting . . . . . 285--286
                      Anonymous   Inventions: Recently Patented Inventions 287--287
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 289--290
                 Monroe Woolley   Converting a Municipal Liability into an
                                  Asset, Remarkable Increase in the
                                  Manufacture of Electrochemical Products,
                                  and more . . . . . . . . . . . . . . . . 275--277
                Roy F. Williams   ``Lay Aft All Civilian Volunteers''  . . 278--279
            Everard B. Marshall   The Life of a Naval Volunteer  . . . . . 279--279
              Henry G. Schaefer   The Spiral of Archimedes . . . . . . . . 280--280
                      Anonymous   The Quebec Bridge Disaster . . . . . . . 282--284

Scientific American
Volume 115, Number 14, September 30, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 301--301
           Henry Norris Russell   The Heavens in October . . . . . . . . . 304--304
               W. F. Schaphorst   Inventions New and Interesting . . . . . 306--306
                      Anonymous   Notes and Queries  . . . . . . . . . . . 309--309
              Burt M. McConnell   The Aeroplane in Arctic Exploration  . . 295--295
                      Anonymous   Record Gunnery by the ``Pennsylvania'',
                                  The Physiology of Labor, and more  . . . 296--297
                      Anonymous   Further Light on the Quebec Bridge
                                  Disaster . . . . . . . . . . . . . . . . 298--299
                      Anonymous   Strategic Moves of the War, September
                                  22nd, 1916 . . . . . . . . . . . . . . . 300--300
               Ladis\las d'Orcy   Armor-Plating an Aeroplane, Maple Wood,
                                  a Substitute for French Briar  . . . . . 301--301
                  Orson D. Munn   Recent Cruise of Patrol Squadron No. I   302--303
                      Anonymous   Walking, Hopping, Creeping and Crawling
                                  Mechanical Beasts  . . . . . . . . . . . 305--305
                      Anonymous   Lipo-Vaccines  . . . . . . . . . . . . . 308--308
                      Anonymous   Validation of Patents and Trademarks in
                                  Mexico . . . . . . . . . . . . . . . . . 310--310

Scientific American
Volume 115, Number 15, October 7, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 321--321
                      Anonymous   Inventions New and Interesting . . . . . 330--331
                      Anonymous   Inventions: Recently Patented Inventions 332--332
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 341--341
                      Anonymous   The Vindication of the Battle-Cruiser    315--315
                      Anonymous   The Ships of Our New Naval Program,
                                  Ozone as an Antiseptic, and more . . . . 316--317
          Raymond Francis Yates   Combining Graphite with Alloy in the
                                  Manufacture of Self-Lubricating Metal    318--319
             Robert G. Skerrett   Scientific Annihilation of the Tobacco
                                  Beetle . . . . . . . . . . . . . . . . . 319--319
                      Anonymous   Strategic Moves of the War, September
                                  29th, 1916 . . . . . . . . . . . . . . . 320--320
              Frederic Campbell   Binocular Vision . . . . . . . . . . . . 321--321
                      Anonymous   Armored Tractors in the European War . . 322--323
                   Neal Truslow   American Red Cross Ambulance Service in
                                  France . . . . . . . . . . . . . . . . . 324--325
           William Scheppegrell   What Plants are Responsible for Hay
                                  Fever  . . . . . . . . . . . . . . . . . 325--327
                      Anonymous   Industrial Preparedness for Peace  . . . 328--329
              L. William Thavis   Government Experts Discourage American
                                  Drug Plant Farming . . . . . . . . . . . 333--334
                      Anonymous   A Serum for Typhus ``Fever'', New
                                  Russian Export Regulations, and more . . 335--335
                      Anonymous   Motion Pictures and the Chinese
                                  Theatergoers . . . . . . . . . . . . . . 337--338
                      Anonymous   Conservation in the Manufacture of Coke,
                                  Hardening Tools for Cutting Castings
                                  Containing Chilled Spots, and more . . . 339--340
                      Anonymous   Power from the Sun, Storm Warnings for
                                  Herders of Sheep, and more . . . . . . . 342--346

Scientific American
Volume 115, Number 16, October 14, 1916

                      Anonymous   Inventions New and Interesting . . . . . 355--355
                      Anonymous   Inventions: Recently Patented Inventions 356--356
                      Anonymous   Notes and Queries  . . . . . . . . . . . 358--358
                      Anonymous   Recent Research Work Among Egyptian
                                  Ruins  . . . . . . . . . . . . . . . . . 359--359
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 359--359
                      Anonymous   The New Naval Reserve Force, American
                                  Weather Forecasting, and more  . . . . . 346--347
                Annis Salisbury   The Tell-Tale Fossil . . . . . . . . . . 348--349
                 R. P. Crawford   Utilization of Old Railroad Ties, A New
                                  Type of Landing Gear . . . . . . . . . . 349--349
                      Anonymous   Strategic Moves of the War, October 4th,
                                  1916, Iodine as a Military Antiseptic,
                                  and more . . . . . . . . . . . . . . . . 350--350
               Malcolm MacLaren   Bed-Rock Legislation for Preparedness,
                                  The Council of National Defense, and
                                  more . . . . . . . . . . . . . . . . . . 351--353
                      Anonymous   Animated Cartoons in the Making  . . . . 354--354

Scientific American
Volume 115, Number 17, October 21, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 369--370
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 374--374
                      Anonymous   The Privately Owned Naval Scout,
                                  Scientific Meetings in Argentina . . . . 363--363
                      Anonymous   The German Submarine Raid Off Our
                                  Coasts, Spirit and Purpose of the Hay
                                  Army Bill, and more  . . . . . . . . . . 364--365
                      Anonymous   An Industrial Giant of Recent Birth  . . 366--367
               Irvin J. Mathews   Bringing Scientific Methods to the Dairy
                                  of To-Day  . . . . . . . . . . . . . . . 367--367
                      Anonymous   Strategic Moves of the War, October
                                  12th, 1916 . . . . . . . . . . . . . . . 368--368
                 I. F. Springer   Building a Pipe-Line of Concrete . . . . 371--371
                      Anonymous   Shipping Losses of the Warring Nations   372--373
                      Anonymous   Experiments in the Rearing of Blue Foxes 377--377
                      Anonymous   Motor Truck Queries and Answers  . . . . 378--378

Scientific American
Volume 115, Number 18, October 28, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 389--389
                      Anonymous   Inventions New and Interesting . . . . . 393--394
                      Anonymous   Inventions: Recently Patented Inventions 396--397
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 398--398
                      Anonymous   Our Latest Dreadnought, the ``New
                                  Mexico'' . . . . . . . . . . . . . . . . 383--383
                      Anonymous   The Law of Search and Seizure on the
                                  High Seas, A Warning, and more . . . . . 384--385
              S. Leonard Bastin   Testing a Diamond  . . . . . . . . . . . 386--386
              Victor W. Killick   Pre-Cooling California Oranges to Save
                                  Millions of Dollars Annually . . . . . . 387--387
                  F. C. Perkins   Loading Iron by Magnets  . . . . . . . . 387--387
                      Anonymous   Strategic Moves of the War, October
                                  20th, 1916 . . . . . . . . . . . . . . . 388--388
                   C. H. Claudy   How the Giant Destroys . . . . . . . . . 389--390
                      Anonymous   Prototypes of Modern Artillery . . . . . 391--392
               Frank C. Perkins   How did it Happen?, Manufacture of
                                  Bar-Ie-Duc Jelly . . . . . . . . . . . . 394--395

Scientific American
Volume 115, Number 19, November 4, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 409--409
           Henry Norris Russell   The Heavens in November  . . . . . . . . 416--416
                      Anonymous   Inventions New and Interesting . . . . . 417--418
                      Anonymous   Inventions: Recently Patented Inventions 420--420
                      Anonymous   Notes and Queries  . . . . . . . . . . . 427--427
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 427--428
                      Anonymous   The Captured German Mine-Laying
                                  Submarine, Molybdenum as a Steel Alloy,
                                  and more . . . . . . . . . . . . . . . . 403--405
                John B. Flowers   Torpedo Screen for Ships Under Way . . . 406--407
                      Anonymous   Strategic Moves of the War, October
                                  26th, 1916 . . . . . . . . . . . . . . . 408--408
                     L. E. Dodd   Letting the Eye Train the Voice  . . . . 410--410
                     F. F. Mace   Photography with a Horse-Shoe Magnet . . 411--411
               Bertram Williams   The War Aeroplane here and Abroad  . . . 412--415
                      Anonymous   Photographing Interior Structure of
                                  Concrete Work, A Chemical Laboratory on
                                  Wheels, and more . . . . . . . . . . . . 421--422
                      Anonymous   Buttons as a By-Product of Beer, Patents
                                  Issued on Collodial Bitumens, and more   423--426

Scientific American
Volume 115, Number 2, July 8, 1916

                      Anonymous   Inventions New and Interesting . . . . . 45--46
                      Anonymous   Inventions: Recently Patented Inventions 48--48
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 50--50
              Charles M. Maigne   How the Shrimp Industry Saved
                                  Fernandina, The Men Behind the Men, and
                                  more . . . . . . . . . . . . . . . . . . 35--37
                 Joseph Brinker   The Miracle of Motor Transport . . . . . 38--39
         Baron Ladis\las d'Orcy   The Launching of a 61-Ton Zeppelin . . . 39--39
                  Thomas Robins   America's Industrial Organization for
                                  National Defense . . . . . . . . . . . . 40--40
                      Anonymous   Strategic Moves of the War, June 29th,
                                  1916 . . . . . . . . . . . . . . . . . . 41--41
                      Anonymous   The Nation's Research Laboratory . . . . 42--44

Scientific American
Volume 115, Number 20, November 11, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 437--437
                      Anonymous   Inventions New and Interesting . . . . . 442--442
                      Anonymous   Recently Patented Inventions . . . . . . 443--443
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 444--446
                Monroe. Woolley   Building a Front Door on the Philippines 431--431
                      Anonymous   The Navy as a Career for Young Men . . . 432--433
                      Anonymous   Bringing Motion Pictures into the Home   434--434
                      Anonymous   A Motor Car for the Multitude, How the
                                  World's Largest Silent-Chain Drive
                                  Solved a Power-Plant Problem . . . . . . 435--435
                      Anonymous   Strategic Moves of the War, November
                                  1st, 1916  . . . . . . . . . . . . . . . 436--436
                      Anonymous   Construction of the Balboa Dry Dock  . . 438--440
               S. Lenard Bastin   The Venus Fly Trap at Dinner . . . . . . 441--441
                      Anonymous   Measuring the Human Voice  . . . . . . . 446--446

Scientific American
Volume 115, Number 21, November 18, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 457--458
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 462--462
                      Anonymous   The Big Gun in the Big Ship, Fair Play
                                  for American Shipping and more . . . . . 452--453
                      L. Lodian   Strange Modes of Food Preservation . . . 454--454
                 Annis Salsbury   Reading the Secrets of the Earth . . . . 455--455
              Frank B. McMillin   Artificial Rock Salt from Hydraulic
                                  Presses  . . . . . . . . . . . . . . . . 455--455
                      Anonymous   Strategic Moves of the War, November
                                  9th, 1916  . . . . . . . . . . . . . . . 456--456
                      Anonymous   When Fulton Suggested Submarine Warfare  458--461

Scientific American
Volume 115, Number 22, November 25, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 477--477
                      Anonymous   Inventions New and Interesting . . . . . 481--482
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 484--485
                      Anonymous   Our Latest Dreadnought, the ``Arizona''  471--471
                      Anonymous   Is Our Naval Programme Imperilled? . . . 472--473
                      Anonymous   Wings for Our Eagle  . . . . . . . . . . 474--474
                      Anonymous   The Inspection and Tests of Lewis
                                  Machine Guns . . . . . . . . . . . . . . 475--475
                      Anonymous   Strategic Moves of the War, November
                                  17th, 1916 . . . . . . . . . . . . . . . 476--476
                      Anonymous   A Giant Among Tunnels  . . . . . . . . . 478--480
                      Anonymous   The Death of Dr. Percival Lowell, The
                                  Varnished Frog, and more . . . . . . . . 482--482

Scientific American
Volume 115, Number 23, December 2, 1916

           Henry Norris Russell   The Heavens in December, 1916  . . . . . 506--506
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 520--520
                 I. F. Springer   A Reservoir That Will Float  . . . . . . 491--491
                      Anonymous   The \booktitleScientific American and
                                  the Electrical Week, What Will We Do For
                                  Science? and more  . . . . . . . . . . . 492--493
                      Anonymous   Electric Heating in the Industries . . . 494--494
                      Anonymous   The Telescopic Rifle Sight in the United
                                  States Army, Ruth Law and Her Remarkable
                                  Flight from Chicago to New York  . . . . 495--495
                      Anonymous   Strategic Moves of the War, November
                                  22nd, 1916 . . . . . . . . . . . . . . . 496--496
             Thomas Alva Edison   Industrial Preparedness for Peace, The
                                  Current Supplement, and more . . . . . . 497--497
                 Hugh L. Cooper   Forty Million Horse Power Wasted . . . . 498--499
              William H. Easton   Electric Steel, Damage Co Buildings by
                                  White Ants, and more . . . . . . . . . . 500--501
                   C. H. Claudy   Electrical Invasion of the Home  . . . . 502--502
      Charles Proteus Steinmetz   Have We Reached Limit of Power
                                  Transmission?  . . . . . . . . . . . . . 503--503
                   George Gibbs   Electrification of Steam Railroads . . . 504--505
                   F. C. Meyers   Cost of Electric Light . . . . . . . . . 512--512

Scientific American
Volume 115, Number 24, December 9, 1916

                      Anonymous   Inventions New and Interesting . . . . . 533--533
                      Anonymous   Inventions: Recently Patented Inventions 534--534
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 537--537
                      Anonymous   Notes and Queries  . . . . . . . . . . . 538--538
                      Anonymous   Goethals' Defense of the Panama Canal,
                                  United States' and World's Railways
                                  Compared, and more . . . . . . . . . . . 524--525
                      Anonymous   Yachting in the Air  . . . . . . . . . . 526--527
                      Anonymous   Strategic Moves of the War, November
                                  28th, 1916 . . . . . . . . . . . . . . . 528--528
                Charles Bolduan   The Economical Ration for the Times  . . 529--529
                      Anonymous   Exploring a River Bottom from the Under
                                  Side . . . . . . . . . . . . . . . . . . 530--530
                 James Anderson   Old-World Jewelry Made in America  . . . 530--531
                      Anonymous   Eliminating Guesswork in Cinematography  532--532
                      Anonymous   Conference on Fire Tests of Walls and
                                  Partitions, Making Photographic Color
                                  Prints on Silk Fabrics, American Chewing
                                  Gum in China . . . . . . . . . . . . . . 536--537

Scientific American
Volume 115, Number 25, December 16, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 549--549
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 554--554
                      Anonymous   Inventions: Recently Patented Inventions 555--556
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 557--557
                      Anonymous   Notes and Queries  . . . . . . . . . . . 561--562
              Hamiltor M. Laing   The Tragedy of the Spawning Ground . . . 543--543
                      Anonymous   The Breeding of Silver Black Fox on
                                  Prince Edward Island . . . . . . . . . . 543--543
                      Anonymous   Trench Chiropody, The Military Man-Power
                                  of the United States, and more . . . . . 544--545
                      Anonymous   Our Superb Battle-Cruisers . . . . . . . 546--546
                   C. L. Edholm   New York's Army of Snow Fighters . . . . 547--547
                      Anonymous   Strategic Moves of the War, December
                                  8th, 1916  . . . . . . . . . . . . . . . 548--548
                   Stanley Weir   Filling the Salt-Seller  . . . . . . . . 550--551
                      Anonymous   America's Toy Town . . . . . . . . . . . 552--553
                   C. L. Edholm   A New Type of Phonograph . . . . . . . . 553--553
                      Anonymous   Wit Versus Wisdom In The Patent Office   559--559

Scientific American
Volume 115, Number 26, December 23, 1916

                      Anonymous   Inventions New and Interesting . . . . . 578--578
                      Anonymous   Inventions: Recently Patented Inventions 580--580
                      Anonymous   An Army Railroad Howitzer, How
                                  Refrigerator Insulation is Made, and
                                  more . . . . . . . . . . . . . . . . . . 567--569
                      Anonymous   New Type of Steam Motor Car  . . . . . . 570--571
                      Anonymous   Strategic Moves of the War, December
                                  14th, 1916 . . . . . . . . . . . . . . . 572--572
                Marcus Benjamin   The New President of the American
                                  Association for the Advancement of
                                  Science, Russian Graphite, and more  . . 573--573
               Thomas J. Keenan   How Waste Paper is Treated to Make New
                                  Paper  . . . . . . . . . . . . . . . . . 574--575
                  F. C. Perkins   Concrete Cottages from a Catalogue . . . 575--575
                Baron L. d'Orcy   Evolution of the Rigid Airship Design    576--577

Scientific American
Volume 115, Number 3, July 15, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 61--61
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 66--66
                      Anonymous   Inventions: Recently Patented Inventions 68--69
                  Jacques Boyer   New Apparatus for Internal Diagnosis,
                                  Military Use of Sabadilla in the
                                  Manufacture of Tear-Producing Gases  . . 55--55
                  C. Dienstbach   Docking Zeppelins, Potash in Texas, and
                                  more . . . . . . . . . . . . . . . . . . 55--57
               Samuel J. Record   Spanish Moss . . . . . . . . . . . . . . 58--59
                      Anonymous   Strategic Moves of the War, July 7th,
                                  1916 . . . . . . . . . . . . . . . . . . 60--60
                      Anonymous   Remarkable Underpinning Work . . . . . . 62--62
             Robert G. Skerrett   Facing Hazards for the Sake of Precision 63--63
                      Anonymous   Mediæval Machinery  . . . . . . . . . . . 64--65
             John B. C. Kershaw   Measuring the Dust in the Air  . . . . . 65--65

Scientific American
Volume 115, Number 4, July 22, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 81--81
                      Anonymous   Inventions New and Interesting . . . . . 85--86
                      Anonymous   Inventions: Recently Patented Inventions 88--88
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 89--89
                      Anonymous   Notes and Queries  . . . . . . . . . . . 90--90
                      Anonymous   Pioneer Locomotive Poses for the Motion
                                  Picture Camera, New Alphabet in use by
                                  the Chinese Students, and more . . . . . 75--77
             Robert G. Skerrett   A Simple but Very Flexible Diving
                                  Equipment  . . . . . . . . . . . . . . . 78--78
                   Loring Brent   A Motion Picture Drama from the Ocean
                                  Bottom, Baseball Batting Practice with
                                  an Automatic Pitching Machine, and more  78--79
                 C. A. Jacobson   Industrial Preparedness for Peace  . . . 80--80
        Charles Fitzhugh Talman   The Industrial Army  . . . . . . . . . . 80--81
                      Anonymous   German Submersible Blockade Runner ---
                                  ``Deutschland''  . . . . . . . . . . . . 82--83
                      Anonymous   Strategic Moves of the War, July 14th,
                                  1916 . . . . . . . . . . . . . . . . . . 84--84
                 Irwin B. Smith   Two Electric Motors in One for Oil Wells 86--86

Scientific American
Volume 115, Number 5, July 29, 1916

           Henry Norris Russell   The Heavens in August  . . . . . . . . . 102--102
                      Anonymous   Inventions New and Interesting . . . . . 104--104
                      Anonymous   Notes and Queries  . . . . . . . . . . . 105--105
                      Anonymous   Inventions: Recently Patented Inventions 106--106
                      Anonymous   Our Superb Battle Cruisers, Why Health
                                  Authorities are Baffled, and more  . . . 94--95
                    C. M. Eason   Efficiency of Farm Tractors  . . . . . . 96--97
                      Anonymous   The Dean of Bacteriologists  . . . . . . 98--98
                      Anonymous   Strategic Moves of the War, July 20th,
                                  1916 . . . . . . . . . . . . . . . . . . 99--99
                 Victor W. Page   Modern Agricultural Tractor Designs  . . 100--101
                      Anonymous   Sharks, Man-Eating and Otherwise . . . . 103--103

Scientific American
Volume 115, Number 6, August 5, 1916

                      Anonymous   Inventions New and Interesting . . . . . 127--127
                      Anonymous   Inventions: Recently Patented Inventions 128--128
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 138--141
                      Anonymous   Notes and Queries  . . . . . . . . . . . 143--144
                 F. J. Springer   Development of the Port of New Orleans   111--111
                      Anonymous   Two Years of War in Europe, The Second
                                  Year of the War, and more  . . . . . . . 112--113
                   Martin Wells   The Organization of the United States
                                  Army . . . . . . . . . . . . . . . . . . 114--115
                      Anonymous   Strategic Moves of the War, July 27th,
                                  1916 . . . . . . . . . . . . . . . . . . 116--116
                      Anonymous   Sir William Ramsay . . . . . . . . . . . 117--117
          Victor W. pagé   Substituting Gasoline for Horseflesh . . 118--119
                      Anonymous   The Field Artillery of the United States
                                  Army . . . . . . . . . . . . . . . . . . 120--121
                      Anonymous   How an Army Hears  . . . . . . . . . . . 122--122
                      Anonymous   The Italian Cargo Steamer Milazzo  . . . 123--123
              Charles M. Maigne   Our Cavalry  . . . . . . . . . . . . . . 124--124
                      Anonymous   The Machine Gun  . . . . . . . . . . . . 125--125
                      Anonymous   The Sanitary Service in War  . . . . . . 126--126

Scientific American
Volume 115, Number 7, August 12, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 153--153
                      Anonymous   Inventions New and Interesting . . . . . 157--158
                      Anonymous   Inventions: Recently Patented Inventions 160--160
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 161--161
                      Anonymous   Notes and Queries  . . . . . . . . . . . 162--162
                 F. J. Springer   Concrete Piles in Salt Water . . . . . . 147--147
                      Anonymous   The Naval Bill, The Progress of
                                  Daylight-Saving, The Health of the
                                  Nation, and more . . . . . . . . . . . . 148--149
                      Anonymous   The Munitions Explosion in New York
                                  Harbor . . . . . . . . . . . . . . . . . 150--150
                      Anonymous   Sub-Surface Blockade Running . . . . . . 151--151
                      Anonymous   Strategic Moves of the War, August 4th,
                                  1916 . . . . . . . . . . . . . . . . . . 152--152
               Charles J. Brand   Agricultural Preparedness  . . . . . . . 154--156

Scientific American
Volume 115, Number 8, August 19, 1916

                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 178--178
                      Anonymous   Inventions: Recently Patented Inventions 180--181
                J. B. Whitehead   A New Form of High Voltage Measuring
                                  Instrument . . . . . . . . . . . . . . . 167--169
                      Anonymous   The Argument for Big Submarines, Fact
                                  Versus Fiction in Motion Pictures, and
                                  more . . . . . . . . . . . . . . . . . . 168--169
                    David Brock   Natural Tree Surgery . . . . . . . . . . 170--170
              Robt. G. Skerrett   Battling With 300 Tons of Calcium
                                  Carbide  . . . . . . . . . . . . . . . . 171--171
                 W. J. L. Kiehl   First Electric Boat-Lift in Holland,
                                  High-Speed Steel Alloy by New Process,
                                  and more . . . . . . . . . . . . . . . . 171--171
                      Anonymous   Strategic Moves of the War, August 12th,
                                  1916 . . . . . . . . . . . . . . . . . . 172--172
                      Anonymous   German Official Story of the Skagerrak
                                  Sea Fight  . . . . . . . . . . . . . . . 173--173
             Robert G. Skerrett   The Forerunner of the All-Big-Gun
                                  Fighting Ship  . . . . . . . . . . . . . 174--175
               William F. Rigge   The Occultation of Saturn on August
                                  25th, The Current Supplement, and more   175--177

Scientific American
Volume 115, Number 9, August 26, 1916

                      Anonymous   Correspondence . . . . . . . . . . . . . 191--191
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 198--198
                      Anonymous   The Citizens' Naval Bill, Anti-Dumping
                                  Legislation, and more  . . . . . . . . . 186--187
         Baron Ladis\las d'Orcy   Possibilities and Conditions of Crossing
                                  the Atlantic by Airship  . . . . . . . . 188--188
                      Anonymous   The Cruise of the Civilian Naval
                                  Volunteers . . . . . . . . . . . . . . . 189--189
                      Anonymous   Strategic Moves of the War, August 18th,
                                  1916 . . . . . . . . . . . . . . . . . . 190--190
                      Anonymous   Bridge Building in the Shop  . . . . . . 192--193
                    O. R. Geyer   Motion Pictures in the Schools, A
                                  Frequent Cause of Broken Rails, and more 193--194
            William Albert Hyde   Photographing of High Velocity Phenomena 195--195
                      Anonymous   Patents in Great Britain, The Current
                                  Supplement . . . . . . . . . . . . . . . 196--197


Scientific American
Volume 116, Number 1, January 6, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 11--11
                      Anonymous   Inventions: Recently Patented Inventions 28--28
                      Anonymous   Notes and Queries  . . . . . . . . . . . 40--40
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 51--52
                Herbert T. Wade   How the Car Doors of the New York
                                  Municipal Railway are Operated . . . . . 5--5
                      Anonymous   Retrospect of the Year 1916  . . . . . . 6--7
                      Anonymous   Ancestors of the Automobile  . . . . . . 8--9
                      Anonymous   Strategic Moves of the War, December
                                  28th, 1916 . . . . . . . . . . . . . . . 10--10
                      Anonymous   Trend of 1917 Passenger-Car Design . . . 12--13
                   C. H. Claudy   Federal Aid in Fighting Mud  . . . . . . 14--15
                      Anonymous   The ``Colorado'' Class of Battleships    16--16
                    M. M. Parks   A Dam that Never Overflows, Rabies Among
                                  Wild Animals . . . . . . . . . . . . . . 17--17
                    O. P. Geyer   Pouring Concrete in Zero Weather, Bread
                                  From Unground Grain, and more  . . . . . 17--17
                 Victor W. Page   The Motor Truck of 1917  . . . . . . . . 18--21
               John S. Harwhite   Attacking the Motor's Mightiest Enemy    22--22
                      Anonymous   The Vacuum Operated Brake, Electric
                                  Drive and Gasoline Drive Used
                                  Independently or in Conjunction, and
                                  more . . . . . . . . . . . . . . . . . . 23--23
             Herbert W. Hoffman   The Elusive Measuring Pump . . . . . . . 24--25
               C. Edward Palmer   Price Classification of Motor Cars for
                                  1917 . . . . . . . . . . . . . . . . . . 30--30
                      Anonymous   Electric Pleasure Cars for 1917  . . . . 32--32
                      Anonymous   Tonnage Classification of Commercial
                                  Vehicles for 1917  . . . . . . . . . . . 32--32
                      Anonymous   Electric Commercial Vehicles for 1917    36--36
                      Anonymous   Steam Driven Pleasure Cars . . . . . . . 36--36
                      Anonymous   Steam Driven Commercial Vehicles . . . . 36--36
                      Anonymous   A New Method of Seasoning Wood . . . . . 42--42
                      Anonymous   Removing Rust by Electricity . . . . . . 44--44
                      Anonymous   Frozen Caterpillars that Thaw Out, Waste
                                  of Lubricating Oils, and more  . . . . . 48--51

Scientific American
Volume 116, Number 10, March 10, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 261--261
           Henry Norris Russell   The Heavens in March, 1917 . . . . . . . 264--264
                      Anonymous   Inventions New and Interesting . . . . . 265--270
                      Anonymous   Inventions: Pertaining to Apparel,
                                  Electrical Devices, and more . . . . . . 266--266
                      Anonymous   Fumigating Foreign Cotton to Kill Our
                                  Imported Pests, Fresh Evidence of Perils
                                  of Paper Money, Fire-Protection Studies
                                  at the Bureau of Standards . . . . . . . 255--255
                      Anonymous   From the North Sea to the Atlantic, How
                                  Long Will Easter Eggs Keep?, and more    256--257
                 R. P. Crawford   Concreting a Railroad  . . . . . . . . . 258--258
              Albert A. Hopkins   Satirical Medals of the War  . . . . . . 259--259
                      Anonymous   A Week's Review of the War, March 1st,
                                  1917 . . . . . . . . . . . . . . . . . . 260--260
                 R. G. Skerrett   Feeding the Nation . . . . . . . . . . . 262--262
                      Anonymous   Motion Pictures in Colors and Relief . . 263--263
                      Anonymous   The Current Supplement . . . . . . . . . 267--267
                      Anonymous   A Curious Use for Aniline Dyes . . . . . 268--269

Scientific American
Volume 116, Number 11, March 17, 1917

                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 286--294
                      Anonymous   Inventions: Recently Patented Inventions 288--288
                      Anonymous   Making Milk Bottles of Paper, The Quest
                                  for Improved Methods of Measuring
                                  Leather Hides, and more  . . . . . . . . 275--277
               Ernest Elva Weir   The Process of Spinning Threads of Steel 278--278
                   L. W. Thavis   High-Speed Steel Alloys and Other Rare
                                  Metals . . . . . . . . . . . . . . . . . 278--279
                      Anonymous   Connecticut's Military Census  . . . . . 280--280
               Raymond F. Bacon   The Remuneration of Industry by Research 281--281
                      Anonymous   Rapid Transit in the Factory . . . . . . 282--283
             Edward Ewing Pratt   How the Government Helps Foreign Trade   284--285

Scientific American
Volume 116, Number 12, March 24, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 305--305
                      Anonymous   Inventions New and Interesting . . . . . 312--312
                 R. P. Crawford   Saving Freight Cars from the Bonfire,
                                  Rearing White Mice for Experimental Use  299--299
                      Anonymous   A Call for Instant Action, Industrial
                                  Man Power and the War, and more  . . . . 300--301
                      Anonymous   Where Cotton Vies with Steel . . . . . . 302--303
                      Anonymous   Two Weeks' Review of the War, March
                                  15th, 1917 . . . . . . . . . . . . . . . 304--304
                  Percy Collins   Novel Pets and how to Keep Them  . . . . 306--307
                    Leigh Danen   Speeding Up the Hen  . . . . . . . . . . 307--307
                      Anonymous   An Adjustable Ice-Skate that Grows with
                                  the Foot, A Life-Saving Appliance for
                                  Those Who Skate on Thin Ice, and more    308--309
                      Anonymous   Tin Plate and the Cost of Living,
                                  Germination of French Seeds, and more    313--314

Scientific American
Volume 116, Number 13, March 31, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 325--325
                      Anonymous   Inventions New and Interesting . . . . . 330--330
                      Anonymous   Inventions: Recently Patented Inventions 332--332
                      Anonymous   A State of War, Plunging Fire and Naval
                                  Construction, and more . . . . . . . . . 320--321
                      Anonymous   Twenty Years' Development of the Holland
                                  Submarine  . . . . . . . . . . . . . . . 322--323
                      Anonymous   The Largest Anchor and How It Is Tested,
                                  A Baby Tractor of Great Power  . . . . . 323--323
                      Anonymous   Strategic Moves of the War --- March
                                  22d, 1917  . . . . . . . . . . . . . . . 324--324
                      Anonymous   The Birth of a New Industry  . . . . . . 326--327
                J. A. Macdonald   Determining the True Meridian  . . . . . 328--328
              Albert A. Hopkins   The Present Population of the United
                                  States and its Possessions . . . . . . . 328--328
                      Anonymous   The Capacity of a Coal Pile, A
                                  Vegetation Map of the United States, and
                                  more . . . . . . . . . . . . . . . . . . 328--329
                      Anonymous   The Current Supplement . . . . . . . . . 332--332

Scientific American
Volume 116, Number 14, April 7, 1917

           Henry Norris Russell   The Heavens in April, 1917 . . . . . . . 347--347
                      Anonymous   Inventions New and Interesting . . . . . 354--354
                      Anonymous   Inventions: Recently Patented Inventions 356--356
                      Anonymous   Notes and Queries  . . . . . . . . . . . 362--362
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 364--364
               Ernest Elva Weir   How Beer is Made . . . . . . . . . . . . 339--339
                      Anonymous   Germany's Submarine Effort, Clandestine
                                  Wireless Stations Here and Abroad, and
                                  more . . . . . . . . . . . . . . . . . . 340--341
                   C. L. Edholm   Airmen and the Weather Bureau ---
                                  Partners . . . . . . . . . . . . . . . . 342--342
              Alfred Gradenwitz   Women-Chemists in Wartime  . . . . . . . 343--343
                      Anonymous   Strategic Moves of the War --- March
                                  29th, 1917 . . . . . . . . . . . . . . . 344--344
                  Robert Dollar   The American Merchant Marine . . . . . . 345--345
              J. Bernard Walker   Gun Versus Armor . . . . . . . . . . . . 346--346
                      Anonymous   Machines for Mining Coal . . . . . . . . 348--349
                   C. L. Edholm   The Car of All Work  . . . . . . . . . . 349--349
                      Anonymous   High Tension Submarine Cable Between
                                  Denmark and Sweden, Are Wooden Shoes
                                  Coming into Vogue Again? . . . . . . . . 349--349
                      Anonymous   Salving a Big Ship . . . . . . . . . . . 350--351
                      Anonymous   What I Can Do for My Country . . . . . . 352--352
                      Anonymous   A New French Artificial Eye  . . . . . . 353--353
                      Anonymous   Aluminum Coated Iron Castings, Nothing
                                  New Under the Sun, and more  . . . . . . 357--357
                      Anonymous   National Forest Enlarged, The Most
                                  Active Classes of Inventions, and more   360--361
                 R. W. Lockwood   Why the Average American Dies at
                                  Forty-three  . . . . . . . . . . . . . . 361--361

Scientific American
Volume 116, Number 15, April 14, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 373--373
                      Anonymous   Inventions New and Interesting . . . . . 378--379
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 380--381
                      Anonymous   Notes and Queries  . . . . . . . . . . . 382--382
                      Anonymous   The Cunning Displayed in the Sinking of
                                  the German Steamer ``Liebenfels''  . . . 367--367
                      Anonymous   The President's War Message, The Removal
                                  of Major-General Wood, and more  . . . . 368--369
               Albert A. Hansen   Common Edible Mushrooms  . . . . . . . . 370--371
                      Anonymous   Strategic Moves of the War --- April
                                  5th, 1917  . . . . . . . . . . . . . . . 372--372
          Austin C. Lescarboura   Bringing the Gnome Engine to America . . 374--375
                      Anonymous   Seasoning Iron Castings  . . . . . . . . 375--375
                Elwood Hendrick   More Sulphur From Smelter Gases  . . . . 375--375
                      Anonymous   A Tractor That Ice and Snow Will Not
                                  Stall, Ways and Means to Increase
                                  American Aircraft Production, and more   376--377
                      Anonymous   Sulphite Coal: a New Fuel, Spinel
                                  Refractories . . . . . . . . . . . . . . 379--379

Scientific American
Volume 116, Number 16, April 21, 1917

                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 397--397
                      Anonymous   Inventions: Recently Patented Inventions 402--402
                      Anonymous   A Unit System for the Packing and
                                  Handling of Artillery Ammunition . . . . 385--385
                      Anonymous   A Volunteer System Spells Disaster, The
                                  General Public and the Food Problem, and
                                  more . . . . . . . . . . . . . . . . . . 386--387
                      Anonymous   The Ball-Bearing Tractor . . . . . . . . 388--389
                      Anonymous   Strategic Moves of the War --- April
                                  12th, 1917 . . . . . . . . . . . . . . . 390--390
               Ellwood Hendrick   Recent Chemical Developments . . . . . . 391--391
               E. M. K. Geiling   The Value of Agriculture in Time of War  391--391
             Edward Ewing Pratt   American Hardware in Foreign Markets . . 392--393
                      Anonymous   Process of Copper-Plating Propeller
                                  Blades, New Naval Anti-Aircraft Gun  . . 393--393
               Thomas H. Norton   American Sources of Nitrogen . . . . . . 394--394
                      Anonymous   Some Fast Submarine Chasers, Monitor
                                  ``Tallahassee'' in a Seaway, and more    395--395
                      Anonymous   What i Can do for My Country . . . . . . 396--396
                      Anonymous   Public Water Supplies in Michigan  . . . 400--400
                      Anonymous   Insect Depredations in Wood, What Shall
                                  We Do to Prevent Our Enormous
                                  Forest-Fire Losses . . . . . . . . . . . 405--405
                      Anonymous   Melting Copper in Iron Ladles  . . . . . 406--406
                    Don Decatur   The Importance of Trademarks in Our
                                  Latin-American Trade . . . . . . . . . . 408--408
                      Anonymous   Apparatus for Balancing High Speed
                                  Machinery  . . . . . . . . . . . . . . . 412--412

Scientific American
Volume 116, Number 17, April 28, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 421--421
                      Anonymous   Inventions New and Interesting . . . . . 425--426
                    Edwin Cerio   The ``Multi-Tubular'' Submarine  . . . . 415--415
                      Anonymous   The Salton Sea, Commercial Science in a
                                  Canadian University  . . . . . . . . . . 415--415
                      Anonymous   Sea-Raider Versus Submarine, Saving the
                                  Heat Lost in Internal Combustion Motors,
                                  and more . . . . . . . . . . . . . . . . 416--417
             Earle William Gage   The Hudson Bay Railroad  . . . . . . . . 418--419
                      Anonymous   Strategic Moves of the War --- April
                                  19th, 1917 . . . . . . . . . . . . . . . 420--420
          Lieut. G. L. Faulkner   Britain's Bid for the Control of the Air 422--423
                      Anonymous   Our Mobilization of Food . . . . . . . . 424--424
                      Anonymous   Why the Allied Powers Have Control of
                                  the Air  . . . . . . . . . . . . . . . . 428--429

Scientific American
Volume 116, Number 18, May 5, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 441--441
           Henry Norris Russell   The Heavens in May, 1917 . . . . . . . . 448--449
                      Anonymous   Inventions New and Interesting . . . . . 450--450
                      Anonymous   Inventions: Recently Patented Inventions 452--452
                      Anonymous   Notes and Queries  . . . . . . . . . . . 458--458
                      Anonymous   A System of Mobile Coast Defense . . . . 435--435
                      Anonymous   The U-Boat Menace, Our Artillery and Our
                                  Allies, and more . . . . . . . . . . . . 436--437
           Wm. Washburn Nutting   The Submarine Swatter  . . . . . . . . . 438--439
                      Anonymous   Strategic Moves of the War --- April
                                  26th, 1917 . . . . . . . . . . . . . . . 440--440
               Ellwood Hendrick   Recent Chemical Developments . . . . . . 441--441
                   I. K. Dawson   Military Engineering of the Teutons  . . 442--443
                      Anonymous   What I Can Do for My Country . . . . . . 444--444
                      Anonymous   The Technology of the Washroom . . . . . 445--445
          Austin C. Lescarboura   Generals of Shadowland Warfare . . . . . 446--447
                      Anonymous   Rapid Fire Soap Making . . . . . . . . . 453--453
                      Anonymous   Use of State Convicts for Road Building
                                  Increasing, Two Billion Paving Bricks a
                                  Year, and more . . . . . . . . . . . . . 460--460

Scientific American
Volume 116, Number 19, May 12, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 469--469
                     Homer Croy   Inventions New and Interesting . . . . . 473--473
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 478--478
                      Anonymous   Torpedoing the Enemy's Trenches as a
                                  Preliminary to Infantry Attack . . . . . 463--463
                      Anonymous   The Great Emergency, Personal Names in
                                  the Newspapers, and more . . . . . . . . 464--465
                      Anonymous   ``The 12$ 1 / 2 $-Minute Cafeteria'' . . 466--466
                Arthur H. Young   Making the Railroad Car Safer  . . . . . 467--467
                      Anonymous   Strategic Moves of the War --- May 3rd,
                                  1917 . . . . . . . . . . . . . . . . . . 468--468
                 G. L. Faulkner   Britain's Bid for the Control of the Air 470--472
                   Hudson Maxim   Great U-Boat Peril . . . . . . . . . . . 472--472
                   A. B. Bowers   A New Military Rifle, Bullet-Proof
                                  Armor, and more  . . . . . . . . . . . . 474--474
                      Anonymous   A Pan-American University  . . . . . . . 477--477

Scientific American
Volume 116, Number 2, January, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 61--61
                      Anonymous   Inventions New and Interesting . . . . . 66--66
                      Anonymous   Inventions: Recently Patented Inventions 68--68
                      Anonymous   Moving a Big Bridge, Anthrax Among
                                  Tannery Workers, and more  . . . . . . . 55--57
                      Anonymous   A Proposed Highway Tunnel Beneath the
                                  Hudson River . . . . . . . . . . . . . . 58--59
                   A. L. Hodges   Simple Methods of Determining Rifle
                                  Muzzle Velocities  . . . . . . . . . . . 60--60
             Edward C. Crossman   What the French Helmet will Stand  . . . 60--60
          Austin C. Lescarboura   Machine Guns by the Thousands  . . . . . 62--63
              Frederic R. Honey   Morning and Evening Stars for 1917 . . . 64--64
                 K. H. Hamilton   Model Prison to be Built in Illinois,
                                  When a Fly-Wheel Bursts, and more  . . . 65--65

Scientific American
Volume 116, Number 20, May 19, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 489--489
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 498--498
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 506--506
                      Anonymous   An Electric Camera for Deep Sea
                                  Photography, What is the Difference
                                  Between Coal Tar and Asphalt?  . . . . . 483--483
                      Anonymous   Blockading the Blockaders, Daylight
                                  Saving in France, and more . . . . . . . 484--485
                 Victor W. Page   Motor Traction in Modern War . . . . . . 486--487
                      Anonymous   What a Soldier Eats  . . . . . . . . . . 487--487
                   C. H. Claudy   Building the Emergency Fleet . . . . . . 488--488
          Benjamin C. Gruenberg   Coöperation Between Business Men and the
                                  Schools  . . . . . . . . . . . . . . . . 488--488
               Ellwood Hendrick   Recent Chemical Developments . . . . . . 489--489
               John S. Harwhite   Mechanical Aids in Loading and Unloading
                                  Trucks . . . . . . . . . . . . . . . . . 490--491
                      Anonymous   A Keyboard Machine for Sorting Letters   491--491
                      Anonymous   Plants that Water Themselves, A Squash
                                  That Grew With a Force of Two and One
                                  Half Tons, and more  . . . . . . . . . . 492--492
                   C. H. Claudy   Testing Leather for the U.S. Government  493--493
                      Anonymous   Wartime Wireless Apparatus for Use on
                                  Land and Water . . . . . . . . . . . . . 493--493
                      Anonymous   Feeding the Armies, A 40-Power Naval
                                  Telescope  . . . . . . . . . . . . . . . 493--493
                 Joseph Brinker   Motor Tractors and Trailers  . . . . . . 494--495
                      Anonymous   The Motorized Circus --- Latest Triumph
                                  of Motor Traction  . . . . . . . . . . . 495--495
                      Anonymous   Natural Gas to Blow a Fire Whistle . . . 502--502
                      Anonymous   The Chemistry of Bitumen . . . . . . . . 504--504
                      Anonymous   Accessories that Make the Fighting
                                  Aeroplane More Efficient . . . . . . . . 505--505
                      Anonymous   Coal Tar Dyestuffs in Great Britain  . . 509--509
                      Anonymous   A Huge Mass of Jade  . . . . . . . . . . 512--512

Scientific American
Volume 116, Number 21, May 26, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 523--523
                      Anonymous   Inventions New and Interesting . . . . . 526--527
                      Anonymous   Inventions: Recently Patented Inventions 532--532
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 533--533
              Albert A. Hopkins   The Staggering Cost of Modern Warfare    517--517
                      Anonymous   Submersible Freighter Versus the
                                  Submarine, United States Patents Owned
                                  by Germans, and more . . . . . . . . . . 518--519
                      Anonymous   Army Uniforms by the Millions  . . . . . 520--521
                      Anonymous   Strategic Moves of the War --- May 17th,
                                  1917 . . . . . . . . . . . . . . . . . . 522--522
               Albert K. Dawson   Military Engineering . . . . . . . . . . 524--525
                      Anonymous   What I Can Do for My Country . . . . . . 530--530
                      Anonymous   India's War Flower . . . . . . . . . . . 531--531
                      Anonymous   Our National Waste, Property Losses, and
                                  more . . . . . . . . . . . . . . . . . . 535--536

Scientific American
Volume 116, Number 22, June 2, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 547--547
           Henry Norris Russell   The Heavens in June, 1917  . . . . . . . 554--554
                      Anonymous   Inventions New and Interesting . . . . . 556--556
                      Anonymous   Inventions: Recently Patented Inventions 558--558
                      Anonymous   Protective Pessimism, The National Peril
                                  of Platinum Jewelry, and more  . . . . . 542--543
                 G. L. Faulkner   Britain's Bid for the Control of the Air 544--545
                      Anonymous   Strategic Moves of the War --- May 23d,
                                  1917 . . . . . . . . . . . . . . . . . . 546--546
             Edward F. Chandler   The Modern Automobile Torpedo  . . . . . 548--549
              Charles S. Palmer   The Romance of the Unsuspected . . . . . 550--550
                   C. H. Claudy   Mobilizing our Medicine  . . . . . . . . 550--550
            George M. Wells and   
                R. H. Whitehead   How Salt Water Climbs the Miraflores
                                  Locks  . . . . . . . . . . . . . . . . . 551--551
                   A. L. Hodges   The Mechanics of Marching  . . . . . . . 551--551
                      Anonymous   Submersible the Ultimate Answer to the
                                  Submarine  . . . . . . . . . . . . . . . 552--552
               Henry Reuterdahl   How the American Artists are Helping
                                  their Navy . . . . . . . . . . . . . . . 552--552
           Claude H. Bermingham   Gold Dredging at Sixty Below Zero  . . . 555--555

Scientific American
Volume 116, Number 23, June 9, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 575--575
                      Anonymous   Inventions New and Interesting . . . . . 580--580
                      Anonymous   Inventions: Recently Patented Inventions 582--582
                      Anonymous   A Battleship that will Never Sail the
                                  Seven Seas, Electrolytic Iron for
                                  Commercial Use . . . . . . . . . . . . . 569--569
                      Anonymous   The Gun Accident on the ``Mongolia'',
                                  Manning Our Merchant Marine, and more    570--571
                      Anonymous   Submarine Problem --- II . . . . . . . . 572--573
                      Anonymous   A Victim of U-Boat Pirates . . . . . . . 573--573
                      Anonymous   Strategic Moves of the War --- May 31st,
                                  1917 . . . . . . . . . . . . . . . . . . 574--574
                  Eugene Murphy   The Electric Arc in Wireless Telegraphy  576--577
                   Hudson Maxim   How to Make Ships Torpedo-Proof  . . . . 578--579
                      Anonymous   With the Soldiers Who Fight Underground,
                                  Speeding up the Flight of the American
                                  Seaplane . . . . . . . . . . . . . . . . 579--579
                      Anonymous   Oklahoma Bureau of Standards . . . . . . 584--584

Scientific American
Volume 116, Number 24, June 16, 1917

                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 600--600
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 604--604
                      Anonymous   Notes and Queries  . . . . . . . . . . . 605--605
                      Anonymous   Notes and Queries  . . . . . . . . . . . 606--606
                      Anonymous   How We Burn Up Our Property  . . . . . . 589--589
                      Anonymous   War and Business, Coöperation of Motor
                                  Truck Manufacturers for the Good of the
                                  Nation, and more . . . . . . . . . . . . 590--591
                Howard F. Weiss   Wooden Ships and Ship Worms  . . . . . . 592--592
                     Otto Kress   New Woods for Paper Pulp . . . . . . . . 593--593
                      Anonymous   Strategic Moves of the War --- June 7th,
                                  1917 . . . . . . . . . . . . . . . . . . 594--594
                   C. H. Claudy   Work of the Council of National Defense
                                  and Advisory Commission  . . . . . . . . 595--595
                      Anonymous   Submarine Problem --- III  . . . . . . . 596--597
                      Anonymous   What I Can Do for My Country . . . . . . 598--598
               Ellwood Hendrick   Recent Chemical Developments . . . . . . 598--599
                      Anonymous   The Current Supplement, Investigating
                                  the Strength of Hollow Tiles . . . . . . 608--608

Scientific American
Volume 116, Number 25, June 23, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 619--619
                      Anonymous   Inventions New and Interesting . . . . . 623--624
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 625--625
                      Anonymous   Inventions: Pertaining to Apparel,
                                  Pertaining to Aviation, and more . . . . 626--626
                      Anonymous   Notes and Queries  . . . . . . . . . . . 631--631
                Jas. G. McCurdy   The Formation of Glacial Rivers  . . . . 613--613
                      Anonymous   New Refractory of Great Potential Value
                                  in Steel Making  . . . . . . . . . . . . 613--613
                      Anonymous   Closing the North Sea, The Short-Lived
                                  Destruction of War, and more . . . . . . 614--615
              J. Bernard Walker   The Submarine Problem --- IV . . . . . . 616--617
                      Anonymous   Strategic Moves of the War --- June
                                  14th, 1917 . . . . . . . . . . . . . . . 618--618
                   C. H. Claudy   Dairy Preparedness . . . . . . . . . . . 620--621
                   C. L. Edholm   Home Canning to Prevent Food Waste . . . 621--621
              Maud DeWitt Pearl   How a Microbe Grows  . . . . . . . . . . 622--622
                      Anonymous   How the Austrians Make Paper Twine, Yarn
                                  and Belting, Paper of Mercerized Cotton,
                                  and more . . . . . . . . . . . . . . . . 629--629

Scientific American
Volume 116, Number 26, June 30, 1917

           Henry Norris Russell   The Heavens in July, 1917  . . . . . . . 646--647
              Robert H. Moulton   Inventions New and Interesting . . . . . 648--648
                      Anonymous   Index of Inventions: Index . . . . . . . 654--654
                      Anonymous   True and False Anti-Submarine Strategy,
                                  Work for the Cripple to Do, and more . . 638--639
                      Anonymous   Exploring the Burrows of the German Army 640--640
                   C. H. Claudy   American Supremacy of the Air  . . . . . 641--641
                      Anonymous   Strategic Moves of the War --- June
                                  21st, 1917 . . . . . . . . . . . . . . . 642--642
               Ellwood Hendrick   Recent Chemical Developments . . . . . . 643--643
                      Anonymous   What I Can Do for My Country . . . . . . 643--643
             Percival A. Hislam   The Submarine Problem --- V  . . . . . . 644--645

Scientific American
Volume 116, Number 3, January 20, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 81--81
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 86--86
                      Anonymous   Inventions: Recently Patented Inventions 89--89
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 90--90
                      Anonymous   The Heaviest Submarine Telephone Cable,
                                  Meteorology in the War, and more . . . . 75--77
               C. A. Myers, Jr.   A Working Model of the ``North Dakota''  78--79
                      Anonymous   Strategic Moves of the War, January
                                  12th, 1917 . . . . . . . . . . . . . . . 80--80
               Albert K. Dawson   Economic Conditions in Germany . . . . . 82--83
                      Anonymous   Our Waning Food Supply . . . . . . . . . 84--85
               William H. Eaton   A Portable Skating Rink, Launching the
                                  Largest Gold Dredge, and more  . . . . . 85--85
                      Anonymous   The Vast Literature of Mathematics,
                                  German Substitutes for Rubber Bicycle
                                  Tires, and more  . . . . . . . . . . . . 88--89

Scientific American
Volume 116, Number 4, January 27, 1917

                      Anonymous   Inventions New and Interesting . . . . . 106--107
                      Anonymous   Inventions: Recently Patented Inventions 108--108
                      Anonymous   Lightening the Diver's Load, Relation
                                  Between Solar Corona and Prominences,
                                  and more . . . . . . . . . . . . . . . . 95--97
                    P. A. Roche   Sub-Aqueous Mining of Anthracite Coal    98--98
              Norton S. Roberts   Scientific Sponging  . . . . . . . . . . 99--99
                      Anonymous   A Week's Review of the War, January
                                  19th, 1917 . . . . . . . . . . . . . . . 100--100
                 J. M. Morehead   A Storehouse of Sleeping Energy  . . . . 101--101
               Albert K. Dawson   Economic Conditions in Germany --- II    102--105
                     E. A. Dime   Paper Ribbon Films for Home
                                  Cinematography . . . . . . . . . . . . . 105--105
                      Anonymous   New Process for Manufacture of
                                  Artificial Milk, A Novel Periscope, and
                                  more . . . . . . . . . . . . . . . . . . 109--110

Scientific American
Volume 116, Number 5, February 3, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 121--121
           Henry Norris Russell   The Heavens in February, 1917  . . . . . 128--129
                      Anonymous   Inventions New and Interesting . . . . . 130--130
                      Anonymous   Inventions: Recently Patented Inventions 132--132
                      Anonymous   Notes and Queries  . . . . . . . . . . . 142--143
                 James Anderson   A Jungle Farm for Zoo Boarders . . . . . 115--115
                      Anonymous   Those Armor-Piercing Shells, Is
                                  Government Ownership of Wireless
                                  Intended, and more . . . . . . . . . . . 116--117
                      Anonymous   American-Built Submarine for Spain . . . 118--119
                   E. E. Miller   Industrial Preparedness for Peace  . . . 120--120
               Albert K. Dawson   Economic Conditions in Germany --- III   122--124
               Albert A. Hansen   A Vegetable Partnership  . . . . . . . . 125--125
             Edward C. Crossman   German Military Rifle Practice . . . . . 126--126
                      Anonymous   Woman in the Industries  . . . . . . . . 127--127
                      Anonymous   Kapok for Explosives . . . . . . . . . . 133--133
                      Anonymous   Manganese as Fertilizer  . . . . . . . . 135--136
                      Anonymous   Reagent for Detecting Free Chlorine in
                                  Water, Petrograd--Archangel Automobile
                                  Line . . . . . . . . . . . . . . . . . . 136--136
                      Anonymous   What Was the Greek Fire of the
                                  Ancients?, Shorthand Systems Invented
                                  for the Chinese, and more  . . . . . . . 137--140

Scientific American
Volume 116, Number 6, February 10, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 153--153
                      Anonymous   Inventions New and Interesting . . . . . 158--158
                      Anonymous   Inventions: Recently Patented Inventions 160--160
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 162--162
                      Anonymous   Notes and Queries  . . . . . . . . . . . 162--162
                R. H. Whitehead   Facts About the Panama Canal . . . . . . 147--147
                      Anonymous   Congress and the National Defense,
                                  German Submarines and Our Harbors, and
                                  more . . . . . . . . . . . . . . . . . . 148--149
                      Anonymous   Aboard the Merchant Submarine
                                  `Deutschland'  . . . . . . . . . . . . . 151--151
                      Anonymous   A Week's Review of the War, February
                                  1st, 1917  . . . . . . . . . . . . . . . 152--152
                 Samuel Hubbard   Where Science Joins Hands with Art . . . 154--157
                  Duncan Taylor   Segregation in Steel . . . . . . . . . . 157--157
              L. William Thavis   Rocks and Minerals Made by Artificial
                                  Means  . . . . . . . . . . . . . . . . . 157--157
                      Anonymous   Our Largest Foreign Order for Cast-Iron
                                  Pipe . . . . . . . . . . . . . . . . . . 159--159
                      Anonymous   A Help-Yourself Garage . . . . . . . . . 161--161

Scientific American
Volume 116, Number 7, February 17, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 173--173
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 179--179
                      Anonymous   Inventions: Recently Patented Inventions 182--182
                      Anonymous   Notes and Queries  . . . . . . . . . . . 188--189
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 189--190
                 R. P. Crawford   Potash from Sand-Hill Lakes  . . . . . . 167--167
                      Anonymous   If the United States Should Go to War, A
                                  Fatal Defect In Our Battle-Cruiser
                                  Designs, and more  . . . . . . . . . . . 168--169
                      Anonymous   Our Eagle Learns to Fly  . . . . . . . . 170--171
                      Anonymous   Where Science Comes to the Aid of
                                  Industries . . . . . . . . . . . . . . . 172--172
                  O. B. Mitcham   Modern Ordnance in Relation to
                                  Preparedness . . . . . . . . . . . . . . 174--175
                      Anonymous   Scientific Search for An Ideal Cement    176--176
                    G. A. Aerts   One Phase of Our Commercial Preparedness 176--176
                      Anonymous   Germany the Land of Makeshifts . . . . . 177--177
               William J. Ferry   Science in the Lumber Industry . . . . . 178--178
              Ludwig W. Schmidt   Economic Changes Wrought by the War  . . 178--178
                      Anonymous   Our Tropical Storms  . . . . . . . . . . 180--180
                      Anonymous   French Supplies of Reconstruction
                                  Materials, Tristan da Cunha  . . . . . . 183--183
                      Anonymous   What Was To Be Seen at the First
                                  Pan-American Aeronautics Exposition,
                                  Jacketed Shrapnel, and more  . . . . . . 184--185

Scientific American
Volume 116, Number 8, February 24, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 201--201
                      Anonymous   Inventions New and Interesting . . . . . 206--206
                      Anonymous   Inventions: Recently Patented Inventions 208--208
                      Anonymous   Breaking Through Barbed Wire
                                  Entanglements with the Wire Shooter
                                  Cutter, Where Does the Malaria Germ
                                  Winter?, Danger In Filtering Gasoline    195--195
                      Anonymous   The Government Expert and the Lay
                                  Critic, Mr. Ford's Baby Submarine, and
                                  more . . . . . . . . . . . . . . . . . . 196--197
                  Jacques Boyer   When the Surgeon Sews  . . . . . . . . . 198--198
                      Anonymous   A Collapsible Lifeboat That Looks Like a
                                  Doughnut, The Navy's New Radio Station
                                  at Chollas Heights, Near San Diego . . . 199--199
                      Anonymous   Two Weeks' Review of the War, February
                                  15th, 1917 . . . . . . . . . . . . . . . 200--201
                Herbert T. Wade   Completing the World's Busiest Waterway  202--205
                      Anonymous   Some Recent Supreme Court Decisions in
                                  October, 1916, Term, Institute of Marine
                                  Biology in Sicily  . . . . . . . . . . . 209--210

Scientific American
Volume 116, Number 9, March 3, 1917

                      Anonymous   Inventions: Recently Patented Inventions 240--240
                      Anonymous   The \booktitleScientific American and
                                  the Navy Department, The Scout Patrols
                                  and the Navy Department, and more  . . . 216--217
            Yates Stirling, Jr.   The Unarmored Battleship . . . . . . . . 218--219
                      Anonymous   The Destroyer and the Torpedo  . . . . . 219--219
                      Anonymous   Our Industrial Mobilization  . . . . . . 220--220
                   H. C. Dinger   The Machinery of Ships . . . . . . . . . 221--221
                  Marion Eppley   Anti-Submarine Patrol  . . . . . . . . . 222--223
                      Anonymous   The New 16-Inch Coast-Defense Gun  . . . 224--225
              T. Bernard Walker   The Battle of the Caribbean  . . . . . . 226--227
                      Anonymous   Our Aerial Coast Defenses  . . . . . . . 228--228
                    John Shegog   Notes on Our Inadequate Submarine  . . . 229--229
                    Blue Jacket   The Development of the ``Big-Gun Ship''  230--231
                      Anonymous   A Grave Military Defect in our
                                  Battle-Cruisers  . . . . . . . . . . . . 232--232
                      Anonymous   America and Germany --- a Comparison of
                                  Naval Strength . . . . . . . . . . . . . 233--235
                C. E. Kilbourne   Heavy Mobile Artillery . . . . . . . . . 236--237
                      Anonymous   The German Merchant Fleet  . . . . . . . 238--238
                      Anonymous   Origin and Culture of the Navel Orange   244--245
                      Anonymous   Suture Manufacture in America  . . . . . 248--248


Scientific American
Volume 117, Number 1, July 7, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 9--9
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 13--14
                      Anonymous   Recently Patented Inventions . . . . . . 16--16
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 18--18
                      Anonymous   Re-introducing the Concrete-and-Steel
                                  Fortification, Morality at Newport, and
                                  more . . . . . . . . . . . . . . . . . . 3--4
                      Anonymous   Electricity  . . . . . . . . . . . . . . 5--5
                      Anonymous   Science  . . . . . . . . . . . . . . . . 5--5
                      Anonymous   Automobile . . . . . . . . . . . . . . . 5--5
               Ernest Elva Weir   How Rope is Made . . . . . . . . . . . . 6--7
                   C. H. Claudy   ``Preparing to Prepare'' . . . . . . . . 8--8
                      Anonymous   Doing Our Bit --- I  . . . . . . . . . . 9--9
                      Anonymous   The Submarine Problem --- VI . . . . . . 10--11
                 A. E. Kennelly   The Horse-Power Race . . . . . . . . . . 12--12
                     E. A. Dime   A Telephone Instrument that is Designed
                                  after the Human Ear, Providing the Bolt
                                  with a Nut that Stays in Place . . . . . 14--14
                      Anonymous   Mobilizing Educational Institutions  . . 17--17

Scientific American
Volume 117, Number 10, September 8, 1917

                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 180--180
                    H. C. Hardy   ``693 in 691'', To the Kaiser, and more  169--170
                      Anonymous   Electricity  . . . . . . . . . . . . . . 171--171
                      Anonymous   Science  . . . . . . . . . . . . . . . . 171--171
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 171--171
                      Anonymous   The Multiple Arch Concrete Dam . . . . . 172--173
                 A. W. Schorger   Chemical Products from the Forests . . . 173--173
                      Anonymous   Strategic Moves of the War, August 29th,
                                  1917 . . . . . . . . . . . . . . . . . . 174--174
                   C. H. Claudy   The Hair-Spring of the War . . . . . . . 175--175
                      Anonymous   Ninety Per Cent of Water . . . . . . . . 176--177
                    O. R. Geyer   Making Food from Fodder  . . . . . . . . 177--177
                   M. F. Deming   Scientific Headlight Control . . . . . . 178--179
                      Anonymous   Motor Car Emergencies  . . . . . . . . . 184--184

Scientific American
Volume 117, Number 11, September 15, 1917

                      Anonymous   Correspondence: Correspondance . . . . . 191--191
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 196--196
                      Anonymous   The Testing of Torpedoes, Sirup of
                                  Grapes as a Substitute for Sugar, and
                                  more . . . . . . . . . . . . . . . . . . 185--186
                      Anonymous   Naval and Military . . . . . . . . . . . 187--187
                      Anonymous   Science  . . . . . . . . . . . . . . . . 187--187
                      Anonymous   Aeronautical . . . . . . . . . . . . . . 187--187
                      Anonymous   The Submarine Problem --- XIV  . . . . . 188--188
               Ernest Elva Weir   Lengthening the Life of Wood . . . . . . 189--189
                      Anonymous   Plant Products for Every Purpose . . . . 190--190
                      Anonymous   Bringing in the Foreign Buyer  . . . . . 190--190
             John Bessner Huber   Hay Fever  . . . . . . . . . . . . . . . 191--192
          Austin C. Lescarboura   ``Shooting'' the Photoplay . . . . . . . 192--193
                Harmon W. Marsh   Glue Jackets for Disagreeable Medicines  194--194
                 R. P. Crawford   The Biggest Bear Known . . . . . . . . . 195--195
                    L. B. Baker   Making Your Mark . . . . . . . . . . . . 195--195
              S. Leonard Bastin   A Wonderful Water Plant, The Current
                                  Supplement, and more . . . . . . . . . . 195--195

Scientific American
Volume 117, Number 12, September 22, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 207--207
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 212--212
                      Anonymous   Recently Patented Inventions . . . . . . 214--214
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 218--218
                      Anonymous   Germany's Gotha Battleplane and its
                                  Machine-Gun Tunnel, A Theater Without
                                  Footlights, and more . . . . . . . . . . 201--202
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 203--203
                      Anonymous   Science  . . . . . . . . . . . . . . . . 203--203
                      Anonymous   Industrial Efficiency  . . . . . . . . . 203--203
                   C. H. Claudy   Fighting with Axe and Saw  . . . . . . . 204--204
                      Anonymous   Saving Ships from the Sands  . . . . . . 205--205
                      Anonymous   Strategic Moves of the War, September
                                  13th, 1917 . . . . . . . . . . . . . . . 206--206
                      Anonymous   The Submarine Problem --- XV . . . . . . 208--208
                  Jacques Boyer   The Absent Treatment in Efficiency Tests 209--209
             Charles P. Olivier   Exploring the Skies for the Remains of
                                  Extinct Comets . . . . . . . . . . . . . 210--211
              S. Leonard Bastin   Why Trees Lose Their Leaves, The Current
                                  Supplement, and more . . . . . . . . . . 211--211

Scientific American
Volume 117, Number 13, September 29, 1917

                      Anonymous   Inventions: Invention  . . . . . . . . . 223--223
                      Anonymous   Correspondence . . . . . . . . . . . . . 227--227
           Henry Norris Russell   The Heavens in October, 1917 . . . . . . 230--231
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 232--234
                      Anonymous   Recently Patented Inventions . . . . . . 234--234
                      Anonymous   An Electric Furnace for Melting Brass    234--234
                      Anonymous   Building the Quebec Bridge, The Liberty
                                  Motor, and more  . . . . . . . . . . . . 221--222
                      Anonymous   Electricity  . . . . . . . . . . . . . . 223--223
                      Anonymous   Science  . . . . . . . . . . . . . . . . 223--223
                      Anonymous   The Submarine Problem --- XVI  . . . . . 224--226
                   C. H. Claudy   Ideas that will not Work . . . . . . . . 226--226
              S. Leonard Bastin   Touring Plants . . . . . . . . . . . . . 228--229
               F. M. McClenahan   A National Asset in East Tennessee . . . 236--236

Scientific American
Volume 117, Number 14, October 6, 1917

                      Anonymous   Recently Patented Inventions . . . . . . 254--259
                      Anonymous   The Submarine as an Anti-U-Boat Weapon,
                                  Mobilizing Against Malaria, and more . . 240--240
                      Anonymous   Naval and Military . . . . . . . . . . . 241--241
                      Anonymous   Aeronautical . . . . . . . . . . . . . . 241--241
                      Anonymous   Automobile . . . . . . . . . . . . . . . 241--241
          Austin C. Lescarboura   With the American Airmen of Tomorrow . . 242--243
                   B. C. Huicks   A Three Years' Flying Experience . . . . 244--244
                      Anonymous   Strategic Moves of the War, September
                                  27th, 1917 . . . . . . . . . . . . . . . 245--245
                      Anonymous   Aeroplanes in the Making . . . . . . . . 246--246
                 Victor W. Page   Development of Aviation Engines  . . . . 247--247
            Bertram W. Williams   The Classification of Military
                                  Aeroplanes . . . . . . . . . . . . . . . 248--253
                      Anonymous   Electric Device for the Blind  . . . . . 264--264

Scientific American
Volume 117, Number 15, October 13, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 271--271
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 275--276
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 277--277
                      Anonymous   Recently Patented Inventions . . . . . . 278--278
                      Anonymous   Docking a 9,300-ton Cruiser in a
                                  4,500-ton Dock, A Naval Offensive, and
                                  more . . . . . . . . . . . . . . . . . . 265--266
                      Anonymous   Electricity  . . . . . . . . . . . . . . 267--267
                      Anonymous   Science  . . . . . . . . . . . . . . . . 267--267
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 267--267
                      Anonymous   The Submarine Problem --- XVII . . . . . 268--269
                   C. H. Claudy   Who gets it First? . . . . . . . . . . . 270--270
                      Anonymous   Turning the Tables . . . . . . . . . . . 271--271
                      Anonymous   Horse Surgery at the Front . . . . . . . 272--273
                 Arthur L. Dahl   Mobilizing the Farm Machinery  . . . . . 274--274
                      Anonymous   Petroleum in Britain . . . . . . . . . . 279--279

Scientific American
Volume 117, Number 16, October 20, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 287--287
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 292--292
                      Anonymous   Recently Patented Inventions . . . . . . 294--294
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 303--303
                      Anonymous   Notes and Queries  . . . . . . . . . . . 304--304
                  M. K. Barnett   Recent Destroyer Construction, Perfect
                                  Cooperation of British and American
                                  Navies, and more . . . . . . . . . . . . 281--282
                      Anonymous   Electricity  . . . . . . . . . . . . . . 283--283
                      Anonymous   Science  . . . . . . . . . . . . . . . . 283--283
                      Anonymous   Industrial Efficiency  . . . . . . . . . 283--283
                      Anonymous   The Passing of the ``Pill-Box''  . . . . 284--285
                      Anonymous   Strategic Moves of the War, October
                                  10th, 1917 . . . . . . . . . . . . . . . 286--286
                 Harlow Bradley   Potash --- What we are doing about it    287--287
               Ernest Elva Weir   Filling the Sugar Bowl . . . . . . . . . 288--289
        Walter Scott Meriwether   The Guns Behind the Bonds  . . . . . . . 289--289
              Clyde H. Teesdale   Protecting Wood from Decay and Fire  . . 290--291
                      Anonymous   The Current Supplement . . . . . . . . . 296--296
                      Anonymous   Unraveling the Skeins of Antiquity,
                                  Extending the Bill of Fare, and more . . 300--302

Scientific American
Volume 117, Number 17, October 27, 1917

                      Anonymous   Inventions: Invention  . . . . . . . . . 307--307
                      Anonymous   Correspondence . . . . . . . . . . . . . 311--311
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 316--317
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 319--319
                      Anonymous   Setting Volcanoes to Work, Use of Mean
                                  Sea Level for Elevations, and more . . . 305--306
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 307--307
                      Anonymous   Science  . . . . . . . . . . . . . . . . 307--307
                    C. H. Hardy   The New War Truck  . . . . . . . . . . . 308--308
                      Anonymous   The Submarine Problem --- XVIII  . . . . 309--309
                   C. H. Claudy   Reaching the Hundred Million . . . . . . 310--310
                      Anonymous   What Sixty-Three Hundred Degrees will do 311--311
                      Anonymous   Meeting New York's Insatiable Demand for
                                  Water  . . . . . . . . . . . . . . . . . 312--314
              Maud DeWitt Pearl   Why Cancerous Growth Occurs, Studying
                                  the Science of Evaporation, and more . . 315--315
                      Anonymous   Trade Marks in the Orient  . . . . . . . 318--318
                      Anonymous   Legislation Affecting Wartime Patents    320--320

Scientific American
Volume 117, Number 18, November 3, 1917

                      Anonymous   Correspondence: Correspondance . . . . . 329--329
           Henry Norris Russell   The Heavens in November, 1917  . . . . . 332--333
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 334--335
                      Anonymous   Recently Patented Inventions . . . . . . 336--336
                      Anonymous   Notes and Queries  . . . . . . . . . . . 339--339
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 340--340
                      Anonymous   The House-Mover's Methods Applied to a
                                  Stranded Submarine, German Efficiency
                                  and the Soul, and more . . . . . . . . . 323--324
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 325--325
                      Anonymous   Science  . . . . . . . . . . . . . . . . 325--325
                      Anonymous   Automobile . . . . . . . . . . . . . . . 325--325
                Herbert T. Wade   Weighing Freight Cars  . . . . . . . . . 326--327
                      Anonymous   Strategic Moves of the War, October
                                  24th, 1917 . . . . . . . . . . . . . . . 328--328
                   C. H. Claudy   The Liberty Truck  . . . . . . . . . . . 330--331
                      Anonymous   Traveling Trees  . . . . . . . . . . . . 335--335
                      Anonymous   Advantages of Gas Consumption, Measuring
                                  Daylight . . . . . . . . . . . . . . . . 337--338

Scientific American
Volume 117, Number 19, November 10, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 347--347
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 352--352
                      Anonymous   Fighting Flanders Mud --- and the
                                  Germans, Where Germany Now Secures Her
                                  Copper, and more . . . . . . . . . . . . 341--342
                      Anonymous   Electricity  . . . . . . . . . . . . . . 343--343
                      Anonymous   Science  . . . . . . . . . . . . . . . . 343--343
                      Anonymous   Industrial Efficiency  . . . . . . . . . 343--344
                      Anonymous   Wireless and New York's Police . . . . . 344--344
                      Anonymous   The Submarine Problem --- XIX  . . . . . 345--345
              Ludwig W. Schmidt   After the War --- What?  . . . . . . . . 346--346
                    Wallis Nash   Inventors Whom I Have Known  . . . . . . 347--347
               Ernest Elva Weir   Mining Rock Salt . . . . . . . . . . . . 348--349
               P. W. Litchfield   History's Lesson to the Motor Truck  . . 350--351

Scientific American
Volume 117, Number 2, July 14, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 27--27
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 32--32
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 36--36
                      Anonymous   A Two-Stacker Gold Dredge, The Tractor
                                  Behind the Lines, and more . . . . . . . 21--22
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 23--23
                      Anonymous   Science  . . . . . . . . . . . . . . . . 23--23
                      Anonymous   Aeronautical . . . . . . . . . . . . . . 23--23
             F. E. Kleinschmidt   A Sea Fight in the Adriatic  . . . . . . 24--25
                      Anonymous   Strategic Moves of the War, July 5th,
                                  1917 . . . . . . . . . . . . . . . . . . 26--26
                      Anonymous   Doing Our Bit --- II . . . . . . . . . . 27--27
                      Anonymous   Pictured Physiology  . . . . . . . . . . 28--29
                   C. H. Claudy   A Business Shock Absorber  . . . . . . . 30--30
                      Anonymous   Submarine Problem --- VII  . . . . . . . 31--31
                      Anonymous   A Plague of Mice . . . . . . . . . . . . 34--34
                      Anonymous   Fish Refrigerating Plants for New found
                                  land . . . . . . . . . . . . . . . . . . 35--35
                      Anonymous   A Waste Product of the Rice Field Now
                                  Used in the Sugar Refinery, Coal
                                  Resources of Switzerland . . . . . . . . 36--36

Scientific American
Volume 117, Number 20, November 17, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 363--363
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 368--368
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 372--372
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 374--375
                      Anonymous   Notes and Queries  . . . . . . . . . . . 376--376
                 Arthur L. Dahl   How Ripe Olives Are Made, Pinholes in
                                  Photographic Plates, and more  . . . . . 357--358
                      Anonymous   Naval and Military . . . . . . . . . . . 359--359
                      Anonymous   Science  . . . . . . . . . . . . . . . . 359--359
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 359--359
                      Anonymous   Lake Vessels for the Atlantic Service    360--360
                 R. G. Skerrett   Ships of Stone . . . . . . . . . . . . . 361--361
                      Anonymous   Strategic Moves of the War, November
                                  8th, 1917  . . . . . . . . . . . . . . . 362--362
                      Anonymous   The ``Trading with the Enemy Act'' . . . 363--363
               Ernest Elva Weir   Cutting Logs into Shingles . . . . . . . 364--365
                      Anonymous   What of the Dirigible Balloon? . . . . . 366--366
                      Anonymous   Marked Changes in Captive Lions, Cutting
                                  the Cost of Packing by Using
                                  Standardized Containers, and more  . . . 371--371
                      Anonymous   Acceleration as a Leading Feature of the
                                  Electric Vehicle, An Unusual Case of
                                  Cattle Poisoning from the Wild Black
                                  Cherry, and more . . . . . . . . . . . . 373--373

Scientific American
Volume 117, Number 21, November 24, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 383--383
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 387--394
                      Anonymous   German Raiders Which Put Out to Sea
                                  Without Crews  . . . . . . . . . . . . . 377--378
                      Anonymous   Where We Stand Without Russia, How High
                                  is the Aurora?, and more . . . . . . . . 378--378
                      Anonymous   Aeronautical . . . . . . . . . . . . . . 379--379
                      Anonymous   Science  . . . . . . . . . . . . . . . . 379--379
                      Anonymous   Automobile . . . . . . . . . . . . . . . 379--380
                      Anonymous   The Camera at the Front  . . . . . . . . 380--381
      Captain Stuart C. Godfrey   The Scout Movement and the Engineer  . . 381--381
              Ludwig W. Schmidt   After the War --- What?  . . . . . . . . 382--382
                      L. Lodian   In Unknown Sugardom  . . . . . . . . . . 384--385
                      Anonymous   Some Super-Zeppelin Secrets  . . . . . . 386--387
                      Anonymous   The Yellow Jacket vs. The Skunk  . . . . 394--394
                      May Tevis   Fatigue Toxins . . . . . . . . . . . . . 396--396

Scientific American
Volume 117, Number 22, December 1, 1917

                      Anonymous   Inventions . . . . . . . . . . . . . . . 401--401
           Henry Norris Russell   The Heavens in December, 1917  . . . . . 422--423
           Charles N. Underwood   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 424--424
                      Anonymous   Recently Patented Inventions . . . . . . 426--426
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 427--429
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 432--432
                      Anonymous   War Weariness, Allies: In Name and in
                                  Fact, and more . . . . . . . . . . . . . 400--400
                      Anonymous   Electricity  . . . . . . . . . . . . . . 401--401
                      Anonymous   Science  . . . . . . . . . . . . . . . . 401--401
                      Anonymous   The Growth of the United States Army
                                  During the Present War . . . . . . . . . 402--403
                      Anonymous   Strategic Moves of the War, November
                                  20th, 1917 . . . . . . . . . . . . . . . 404--404
                      Anonymous   Our Army and Navy Posts  . . . . . . . . 405--405
                      Anonymous   The National Army Cantonments  . . . . . 406--407
             Edward C. Crossman   Uncle Sam's New Infantry Rifle . . . . . 408--408
                      L. Lodian   The Inner Man of Armies  . . . . . . . . 409--409
                      Anonymous   Our Navy at War  . . . . . . . . . . . . 410--412
                      Anonymous   Navy Identification Tags . . . . . . . . 413--413
                   H. H. Arnold   Building American Aviation . . . . . . . 414--414
                      Anonymous   Airplanes by the Thousand  . . . . . . . 415--415
                   C. H. Claudy   Preparing the Navy Ashore  . . . . . . . 416--417
                      Anonymous   The Shipyard vs. The Submarine . . . . . 418--419
               Harvey D. Gibson   The Red Cross in War . . . . . . . . . . 420--420
              George W. Perkins   The Y.M.C.A. in War Work . . . . . . . . 421--421
              Albert A. Hopkins   The Clothing for Our Army  . . . . . . . 425--425
                      Anonymous   The Protection of Fruit Against Late
                                  Spring Frosts  . . . . . . . . . . . . . 431--431

Scientific American
Volume 117, Number 23, December 8, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 439--439
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 444--445
                   C. H. Claudy   ``Ten Million Pounds'', The Russian
                                  Front; A German Sanitarium, and more . . 433--434
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 435--435
                      Anonymous   Science  . . . . . . . . . . . . . . . . 435--435
                      Anonymous   Engineering  . . . . . . . . . . . . . . 435--435
              J. Bernard Walker   The Submarine Problem --- XX
                                  (Conclusion) . . . . . . . . . . . . . . 436--437
             Sydney Graves Koon   The Mathematics of Winning the War . . . 438--438
                      Anonymous   Coöperation . . . . . . . . . . . . . . . 439--439
          Austin C. Lescarboura   From the Camera to the Screen  . . . . . 440--441
           Alexandre Livventaal   Trans-Atlantic Airships  . . . . . . . . 442--443

Scientific American
Volume 117, Number 24, December 15, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 455--455
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 460--460
                      Anonymous   Recently Patented Inventions . . . . . . 462--462
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 464--464
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 468--468
                      Anonymous   Why Germany is Losing the War  . . . . . 449--450
                      Anonymous   Naval and Military . . . . . . . . . . . 451--451
                      Anonymous   Science  . . . . . . . . . . . . . . . . 451--451
                      Anonymous   Electricity  . . . . . . . . . . . . . . 451--452
          Raymond Francis Yates   Modern Marble and Granite Working  . . . 452--453
                  O. P. M. Goss   Better Railroad Ties, The Current
                                  Supplement . . . . . . . . . . . . . . . 453--453
                      Anonymous   Strategic Moves of the War, December
                                  6th, 1917  . . . . . . . . . . . . . . . 454--454
              Albert A. Hopkins   The Military Decorations of Our Fighting
                                  Men  . . . . . . . . . . . . . . . . . . 456--457
                      Anonymous   New Steam Motor Truck  . . . . . . . . . 458--459
                      Anonymous   The Simulation of Disease  . . . . . . . 466--466

Scientific American
Volume 117, Number 25, December 22, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 475--475
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 479--480
                      Anonymous   Recently Patented Inventions . . . . . . 482--482
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 488--488
                      Anonymous   The Trench System of Defense vs. The
                                  Pill-Box System, Comparison of Army and
                                  Navy Efficiency, and more  . . . . . . . 469--470
                      Anonymous   Automobile . . . . . . . . . . . . . . . 471--471
                      Anonymous   Science  . . . . . . . . . . . . . . . . 471--471
                      Anonymous   Industrial Efficiency  . . . . . . . . . 471--471
                      Anonymous   Recording Sound on Motion-Picture Film   473--473
                      Anonymous   The Battle Control for the Rifle . . . . 474--474
                Carl Dienstbach   Zeppelin, Aeroplane and Parachute  . . . 474--474
                      Anonymous   Our Destroyers in the War Zone . . . . . 476--478
                      Anonymous   Our Great Need for Toluol and a New Way
                                  to Make It, Process for Using Spoiled
                                  Potatoes . . . . . . . . . . . . . . . . 487--487

Scientific American
Volume 117, Number 26, December 29, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 495--495
           Henry Norris Russell   The Heavens in January . . . . . . . . . 498--498
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 500--501
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 502--502
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 504--504
             Robert G. Skerrett   Two Million More Horse Power from the
                                  Niagara River, The Senate War
                                  Disclosures, and more  . . . . . . . . . 489--490
                      Anonymous   Naval and Military . . . . . . . . . . . 491--491
                      Anonymous   Science  . . . . . . . . . . . . . . . . 491--491
                      Anonymous   Electricity  . . . . . . . . . . . . . . 491--491
                Willard Connely   New Developments in Training Wartime
                                  Sailors  . . . . . . . . . . . . . . . . 492--492
                   C. H. Claudy   Making Concrete Tell its Story, Steel
                                  Shells from Steel Castings, and more . . 493--493
                      Anonymous   Strategic Moves of the War, December
                                  19th, 1917 . . . . . . . . . . . . . . . 494--494
                      Anonymous   Theodore William Richards  . . . . . . . 495--495
              Robert H. Moulton   Toyland in the Films . . . . . . . . . . 496--497
                      Anonymous   Reducing Speeds Magnetically . . . . . . 499--499
                      Anonymous   British Army Free from Typhoid, Should
                                  the Astronomical Day Begin at Midnight?  503--503

Scientific American
Volume 117, Number 3, July 21, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 43--43
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 48--48
                      Anonymous   Exploring Live Volcanoes, Find the Leak,
                                  and more . . . . . . . . . . . . . . . . 37--38
                      Anonymous   Naval and Military . . . . . . . . . . . 39--39
                      Anonymous   Science  . . . . . . . . . . . . . . . . 39--39
                      Anonymous   Industrial Efficiency  . . . . . . . . . 39--39
               Thomas H. Norton   The Evolution of Artificial Dyestuffs    40--40
                      Anonymous   The Submarine Problem --- VIII . . . . . 41--41
                      Anonymous   Doing Our Bit --- III  . . . . . . . . . 42--42
                  John B. Huber   Infantile Paralysis  . . . . . . . . . . 42--42
                 Victor W. Page   Internal Combustion Engines for Farm Use 44--45
                      Anonymous   Exploring the Realms of Science for
                                  Photographic Improvements  . . . . . . . 46--47
                      Anonymous   Mechanical Operations of Color
                                  Manufacture, The Evolution of H-acid,
                                  and more . . . . . . . . . . . . . . . . 50--52

Scientific American
Volume 117, Number 4, July 28, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 59--59
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 64--64
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 68--68
                      Anonymous   Playing the German Game, The Shipping
                                  Board Scandal, and more  . . . . . . . . 54--54
                      Anonymous   Invention  . . . . . . . . . . . . . . . 55--55
                      Anonymous   Science  . . . . . . . . . . . . . . . . 55--55
                      Anonymous   Electricity  . . . . . . . . . . . . . . 55--55
                      Anonymous   The Submarine Problem --- IX . . . . . . 56--57
                      Anonymous   Strategic Moves of the War, July 19th,
                                  1917 . . . . . . . . . . . . . . . . . . 58--58
               Ellwood Hendrick   The Potash Call  . . . . . . . . . . . . 59--59
                      Anonymous   The United States Marine Corps . . . . . 60--61
             Charles F. Bolduan   Fuel Values of Foods . . . . . . . . . . 62--63
                      Anonymous   Meeting the World's Shipping Shortage
                                  with Concrete Ships  . . . . . . . . . . 66--66
                      Anonymous   Labor vs. Machinery in China . . . . . . 67--67

Scientific American
Volume 117, Number 5, August 4, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 77--77
           Henry Norris Russell   The Heavens in August  . . . . . . . . . 80--80
               Frank C. Perkins   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 81--82
                      Anonymous   Recently Patented Inventions . . . . . . 85--85
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 86--86
                      Anonymous   Notes and Queries  . . . . . . . . . . . 86--86
                      Anonymous   Photographs by Cable, North Sea Net ---
                                  a Civil Engineer's Job, and more . . . . 71--72
                      Anonymous   Electricity  . . . . . . . . . . . . . . 73--73
                      Anonymous   Science  . . . . . . . . . . . . . . . . 73--73
                      Anonymous   Automobile . . . . . . . . . . . . . . . 73--73
                      Anonymous   The Submarine Problem --- X  . . . . . . 74--74
                   C. H. Claudy   Mechanics and Mathematics of the Draft   75--75
             Herbert J. Spinden   The Earthquakes and Eruptions in San
                                  Salvador . . . . . . . . . . . . . . . . 76--76
                      Anonymous   When the Gasoline Cavalry Charges  . . . 78--79
                      Anonymous   Specialization as an Aid to War-Time
                                  Industry in England  . . . . . . . . . . 84--84
                      Anonymous   Use of X-Rays for Examining Reinforced
                                  Concrete, Utilization of Waters of
                                  Lowlands in Fisheries  . . . . . . . . . 88--88
                      Anonymous   A Ship with No Reciprocating Machinery,
                                  A Neutral Zone in the Campaign Against
                                  an Insect Pest, and more . . . . . . . . 91--92

Scientific American
Volume 117, Number 6, August 11, 1917

                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 103--104
                      Anonymous   Recently Patented Inventions . . . . . . 106--106
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 108--108
                      Anonymous   General Goethals a Great National Asset,
                                  The Secretary and the Submarine, and
                                  more . . . . . . . . . . . . . . . . . . 94--94
                      Anonymous   Astronomy  . . . . . . . . . . . . . . . 95--95
                      Anonymous   Science  . . . . . . . . . . . . . . . . 95--95
                      Anonymous   Aeronautics  . . . . . . . . . . . . . . 95--95
          John F. Stephens, Jr.   Halifax's New  . . . . . . . . . . . . . 96--96
                      Anonymous   The Submarine Problem --- XI . . . . . . 97--97
                      Anonymous   Strategic Moves of the War, August 2nd,
                                  1917 . . . . . . . . . . . . . . . . . . 98--98
                   C. H. Claudy   A Place for Everything . . . . . . . . . 99--99
               Francis G. Pease   Mount Wilson's 100-Inch Reflector  . . . 100--102
                      Anonymous   Infantile Paralysis in New Zealand,
                                  Zoological Statuary  . . . . . . . . . . 105--105
                      Anonymous   Starving a Fire by Means of a Blockade
                                  of Steam, A New Permanent Magnet Steel,
                                  and more . . . . . . . . . . . . . . . . 107--107

Scientific American
Volume 117, Number 7, August 18, 1917

                      Anonymous   Correspondence . . . . . . . . . . . . . 115--115
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 120--120
                      Anonymous   Recently Patented Inventions . . . . . . 122--122
                      Anonymous   Notes and Queries  . . . . . . . . . . . 127--127
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 128--128
                 James Anderson   A New Freight System to Conserve Our
                                  Foods, Norway and the North Sea Net, and
                                  more . . . . . . . . . . . . . . . . . . 109--110
                      Anonymous   Naval and Military . . . . . . . . . . . 111--111
                      Anonymous   Science  . . . . . . . . . . . . . . . . 111--111
                      Anonymous   Electricity  . . . . . . . . . . . . . . 111--111
              J. Bernard Walker   The Submarine Problem --- XII  . . . . . 112--113
                   C. H. Claudy   Mobilizing Science for War . . . . . . . 114--114
              William H. Easton   A 7000-Horse-power Electric Locomotive   116--116
                    H. C. Hardy   America Faces A War Tragedy  . . . . . . 117--119
                      Anonymous   French National Library Prize  . . . . . 121--121
                      Anonymous   A Fire-Fighters' Record, Wood as a Gas
                                  Making Material, and more  . . . . . . . 126--126

Scientific American
Volume 117, Number 8, August 25, 1917

                      Anonymous   Correspondence: correspondence . . . . . 135--135
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 139--140
                      Anonymous   Recently Patented Inventions . . . . . . 142--142
                      Anonymous   Notes and Queries: Foreign Commercial
                                  Notes and Queries  . . . . . . . . . . . 148--148
                      Anonymous   The Neglected Water Power of New
                                  England, Trench Mortality, and more  . . 129--130
                      Anonymous   Electricity  . . . . . . . . . . . . . . 131--131
                      Anonymous   Science  . . . . . . . . . . . . . . . . 131--131
                      Anonymous   Industrial Efficiency  . . . . . . . . . 131--131
                 E. C. Crossman   Gas Engine Drive for Submerged
                                  Submarines . . . . . . . . . . . . . . . 132--132
                 Arthur L. Dahl   Canning Tomatoes in California . . . . . 133--133
                      Anonymous   A Week's Review of the War, August 16th,
                                  1917 . . . . . . . . . . . . . . . . . . 134--134
                    Louis Keene   The War of Specialists --- The Machine
                                  Gunner . . . . . . . . . . . . . . . . . 136--138
                      Anonymous   Starch in Santo Domingo  . . . . . . . . 147--147

Scientific American
Volume 117, Number 9, September 1, 1917

                      Anonymous   Inventions: Invention  . . . . . . . . . 153--153
                      Anonymous   Correspondence . . . . . . . . . . . . . 157--157
           Henry Norris Russell   The Heavens in September, 1917 . . . . . 160--161
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 162--162
                      Anonymous   Recently Patented Inventions . . . . . . 164--164
        Walter Scott Meriwether   The Heels of Achilles, Safety First at
                                  Sea, and more  . . . . . . . . . . . . . 151--152
                      Anonymous   Automobile . . . . . . . . . . . . . . . 153--153
                      Anonymous   Science  . . . . . . . . . . . . . . . . 153--153
                      Anonymous   Robbing the Arctic so that Montana May
                                  Drink  . . . . . . . . . . . . . . . . . 154--154
                 Rozel Gotthold   Rice Yield Ruined  . . . . . . . . . . . 154--155
                 R. P. Crawford   Moving Forms for Concrete Elevators, A
                                  New Electrical Furnace, and more . . . . 155--155
                   C. H. Claudy   Behind the Cantonments . . . . . . . . . 156--156
                      Anonymous   The Submarine Problem --- XIII . . . . . 158--158
                      Anonymous   Eliminating Disease from the Casualty
                                  List . . . . . . . . . . . . . . . . . . 159--159
                      Anonymous   How Forest Fires are Discovered and
                                  Reported, Cement Joints for Cast-Iron
                                  Pipes, and more  . . . . . . . . . . . . 166--168


Scientific American
Volume 118, Number 1, January 5, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 11--11
                      Anonymous   Inventions New and Interesting . . . . . 24--25
                      Anonymous   Notes and Queries  . . . . . . . . . . . 48--48
                   C. H. Claudy   The Motor Car of the Future  . . . . . . 5--5
                      Anonymous   Retrospect of the Year 1917, Naval, and
                                  more . . . . . . . . . . . . . . . . . . 6--7
                      Anonymous   Standard Steel Cargo Ships for the War
                                  Zone . . . . . . . . . . . . . . . . . . 8--8
                   C. L. Edholm   Scientific Accident Prevention in the
                                  Large City . . . . . . . . . . . . . . . 9--9
                      Anonymous   Development of the Pneumatic Tire  . . . 10--10
               John S. Harwhite   Keeping the Cooling System Hot . . . . . 11--11
                      Anonymous   Roads --- Good and Bad . . . . . . . . . 12--13
                 Annis Salsbury   The Nerves of a Soldier  . . . . . . . . 14--14
                   Jos. Brinker   New Barrel Concrete Mixer for Small
                                  Jobs, The Industrial Trackless Train,
                                  and more . . . . . . . . . . . . . . . . 15--15
                 Victor W. Page   Automobile Development During 1918 . . . 16--16
             Edward C. Crossman   The Gasoline Horse in the West . . . . . 17--17
                 John R. Eustis   Looking Forward  . . . . . . . . . . . . 18--18
                      Anonymous   Iowa's Traffic Census and what it
                                  Teaches  . . . . . . . . . . . . . . . . 19--19
                      Anonymous   A Yielding Barrier that is Fool-Proof    22--22
                      Anonymous   Lights that Shine where they are Wanted  23--23
                      Anonymous   The Chemical Progress of America in
                                  Tabloid Form . . . . . . . . . . . . . . 28--28
                      Anonymous   Price Classification of Motor Cars for
                                  1918 . . . . . . . . . . . . . . . . . . 30--30
                      Anonymous   How to Assist Military Aviators who have
                                  Made Forced Landings . . . . . . . . . . 44--44

Scientific American
Volume 118, Number 10, March 9, 1918

                      Anonymous   Inventions New and Interesting . . . . . 216--223
                      Anonymous   Inventions: Recently Patented Inventions 218--218
                      Anonymous   Preliminary Facts Concerning the
                                  Browning Guns  . . . . . . . . . . . . . 205--205
                      Anonymous   A German General on the Next War,
                                  Getting the Soldier To Think, and more   206--207
                   C. H. Claudy   The Whale as a Food Factor . . . . . . . 208--209
                      Anonymous   Strategic Moves of the War, February
                                  27th, 1918 . . . . . . . . . . . . . . . 210--210
                    Carl Hering   An Additional Lifting Force for
                                  Airplanes  . . . . . . . . . . . . . . . 211--211
            Charles Evan Fowler   Can Coal be Pumped?  . . . . . . . . . . 211--211
                      Anonymous   Australia's First Transcontinental
                                  Railroad . . . . . . . . . . . . . . . . 212--213
             William W. Sniffin   World Markets for American Manufactures  214--214
                      Anonymous   The Problem of the Unsinkable Ship . . . 215--215
                      Anonymous   Acetic Acid and Acetone from Beets . . . 223--223

Scientific American
Volume 118, Number 11, March 16, 1918

                     H. E. Howe   Service of the Chemist . . . . . . . . . 230--230
                      Anonymous   Correspondence . . . . . . . . . . . . . 231--231
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 236--238
                      Anonymous   Notes and Queries  . . . . . . . . . . . 246--246
                      Anonymous   Book Review: New Books, Etc. . . . . . . 248--248
                      Anonymous   Masterpieces of Primitive Engineering    225--225
                      Anonymous   Notice to Our Readers, Bridge Versus Ice
                                  Blockade, and more . . . . . . . . . . . 226--227
                  F. C. Coleman   The Hospital on Rails  . . . . . . . . . 228--228
                      L. Lodian   The Fats of Fighters . . . . . . . . . . 229--229
                      Anonymous   Turning a Pest to Profit . . . . . . . . 232--233
                     A. C. Laut   Concerning Fuel  . . . . . . . . . . . . 234--234
                     J. M. Bird   What Machinery Means . . . . . . . . . . 234--234
              R. P. Burrows and   
                 J. T. Caldwell   Doing Away with the Arc  . . . . . . . . 235--235
                      Anonymous   Bicuiba Oil, Better Canning Rubbers, and
                                  more . . . . . . . . . . . . . . . . . . 244--246

Scientific American
Volume 118, Number 12, March 23, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 255--255
                      Anonymous   Inventions New and Interesting . . . . . 260--260
                      Anonymous   Book Review: New Books, Etc. . . . . . . 267--267
                      Anonymous   Notes and Queries  . . . . . . . . . . . 268--268
                      Anonymous   Profits from ``Freak Fanning'', Navy
                                  Needs a Proving Ground, and more . . . . 249--251
                      Anonymous   The Telephone in Khaki . . . . . . . . . 252--253
                      Anonymous   Strategic Moves of the War, March 12th,
                                  1918 . . . . . . . . . . . . . . . . . . 254--254
                    P. A. Vaile   The Mystery of the Golf Ball . . . . . . 255--255
               J. A. L. Waddell   An American Canal Between Lakes Erie and
                                  Ontario  . . . . . . . . . . . . . . . . 256--257
             William W. Sniffin   World Markets for American Manufactures  258--259
                      Anonymous   Rare Earths and what we can do with
                                  them, Zirconium --- a Resumé, and more    264--266

Scientific American
Volume 118, Number 13, March 30, 1918

           Henry Norris Russell   The Heavens in April, 1918 . . . . . . . 280--280
                      Anonymous   Inventions: Recently Patented Inventions 282--282
                      Anonymous   Cleaning Lakes of Weeds with the
                                  Submarine Saw, Our First Year of War,
                                  and more . . . . . . . . . . . . . . . . 269--271
                      Anonymous   The Jackson Hole Country of Wyoming  . . 272--272
                   Hudson Maxim   Our Shipping Problem, Ingenious Ways of
                                  Destroying U-Boats . . . . . . . . . . . 273--273
          Austin C. Lescarboura   The New Warfare of the Trenches  . . . . 274--274
                   Hudson Maxim   War and Money  . . . . . . . . . . . . . 275--275
                      Anonymous   Mail Through the Air . . . . . . . . . . 275--275
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 276--276
                     F. W. Ives   Storage of Farm Machinery, A Drive on
                                  Grain Elevators, and more  . . . . . . . 276--277
                      Anonymous   Ship Builder Versus Submarine  . . . . . 278--279
                      Anonymous   Paper Cups for Plant Pots  . . . . . . . 284--284
                      Anonymous   The Current Supplement . . . . . . . . . 286--286
                      Anonymous   A New Gas for Welding and Cutting, The
                                  Highest Possible Explosives  . . . . . . 288--288

Scientific American
Volume 118, Number 14, April 6, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 299--299
                      Anonymous   Inventions New and Interesting . . . . . 316--316
                      Anonymous   Book Review: New Books, Etc. . . . . . . 335--336
                      Anonymous   A Freak Gun for a Foolish Purpose, Wheat
                                  and Ships, and more  . . . . . . . . . . 294--295
                Newton D. Baker   One Year of War  . . . . . . . . . . . . 296--297
                   George Creel   The Fight for Public Opinion . . . . . . 298--298
               Josephus Daniels   The U.S. Navy Strips for Action  . . . . 300--301
                   W. B. Wilson   The Department of Labor and War
                                  Production . . . . . . . . . . . . . . . 302--303
               Edward N. Hurley   Bridging the Atlantic with Ships . . . . 304--305
          Grosvenor B. Clarkson   The Council of National Defense  . . . . 306--306
                 H. A. Garfield   The Fuel Question  . . . . . . . . . . . 307--307
                  H. L. Horning   Motor Trucks in the Great War  . . . . . 308--308
                      Anonymous   The German Long-Range Gun  . . . . . . . 309--309
                      Anonymous   Food for All --- a Fundamental War
                                  Problem  . . . . . . . . . . . . . . . . 310--311
                 John W. Havens   Timing Shrapnel with the Camera  . . . . 312--313
              J. Bernard Walker   The Government and the Railroads . . . . 314--315
                      Anonymous   The Current Supplement . . . . . . . . . 320--320
                      Anonymous   Distilling Municipal Gas from Wood, An
                                  Improved Specific Gravity Bottle, and
                                  more . . . . . . . . . . . . . . . . . . 333--334

Scientific American
Volume 118, Number 15, April 13, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 343--343
                      Anonymous   Inventions New and Interesting . . . . . 348--351
                      Anonymous   Book Review: New Books, Etc. . . . . . . 352--352
                      Anonymous   How the Lever Principle was Applied in
                                  Righting a Sunken Steamer, Convenience
                                  for Microscopic Workers, and more  . . . 337--339
             Robert A. Lavender   How Wireless Helps the Mariner . . . . . 340--341
                      Anonymous   Strategic Moves of the War, April 3d,
                                  1918 . . . . . . . . . . . . . . . . . . 342--342
                      Anonymous   Guns of the ``Queen Elizabeth''  . . . . 344--345
             William W. Sniffin   World Markets for American Manufactures  346--347

Scientific American
Volume 118, Number 16, April 20, 1918

                     H. E. Howe   Service of the Chemist . . . . . . . . . 358--358
                      Anonymous   Correspondence . . . . . . . . . . . . . 359--359
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 364--372
                      Anonymous   Inventions: Recently Patented Inventions 366--366
                      Anonymous   Sewer Pipe Laid on Lake Bottom, Geology
                                  in the War, and more . . . . . . . . . . 353--355
            Charles Evan Fowler   Modern Suction Dredging  . . . . . . . . 356--357
              J. Bernard Walker   Velocity and Range of Guns . . . . . . . 360--361
                  Jacques Boyer   Testing Eggs by Photography  . . . . . . 362--363

Scientific American
Volume 118, Number 17, April 27, 1918

                      Anonymous   Inventions New and Interesting . . . . . 386--396
                      Anonymous   Inventions: Recently Patented Inventions 388--388
                      Anonymous   Notes and Queries  . . . . . . . . . . . 397--397
                      Anonymous   Book Review: New Books, Etc. . . . . . . 398--399
                      Anonymous   From Cruiser to Merchantship, Inventors
                                  and the Gun Bombarding Paris, and more   375--377
                      Anonymous   Shrapnel Manufacture and Test  . . . . . 378--378
                    O. R. Geyer   The Agricultural Revolution in the South 378--378
                      Anonymous   A Strange Botanical Garden . . . . . . . 379--379
                      Anonymous   Strategic Moves of the War, April 17,
                                  1918 . . . . . . . . . . . . . . . . . . 380--380
              J. Bernard Walker   Velocity and Range of Guns --- II  . . . 381--381
                      Anonymous   Loading a Huge Locomotive in Sections    382--383
             William W. Sniffin   World Markets for American Manufactures  384--385
                 E. B. Marshall   British Patent Bill  . . . . . . . . . . 386--386

Scientific American
Volume 118, Number 18, May 4, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 409--409
           Henry Norris Russell   The Heavens in May, 1918 . . . . . . . . 412--412
                      Anonymous   Inventions New and Interesting . . . . . 414--414
                      Anonymous   Inventions: Recently Patented Inventions 416--416
                      Anonymous   Book Review: New Books, Etc. . . . . . . 422--423
                      Anonymous   Underground Hangars of the German
                                  Airmen, Counterfeit Gold Coins Worth
                                  More than their Face Value, and more . . 403--403
                      Anonymous   The Delay in Airplane Production, An
                                  Army of 5,000,000 Men, and more  . . . . 404--405
               Albert A. Hansen   Flowers that Fertilize Themselves  . . . 406--406
                   I. I. Brants   New Dutch Export Industry  . . . . . . . 406--406
                      Anonymous   Aurora Australis, Building a Bridge in
                                  Six Weeks to Save a Half Hour, and more  406--407
                      Anonymous   Coal and Electricity in Double Harness   408--408
                      Anonymous   The Pneumatic Water Works  . . . . . . . 408--408
                      Anonymous   Getting the Most Out of the File . . . . 410--410
                      Anonymous   Steam-Driven Forty-five Ton Tank for Our
                                  Army, Discarded Bottles for Dug-Out
                                  Windows, and more  . . . . . . . . . . . 411--411
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 413--413
                      Anonymous   A Weeder Attachment for Cultivators, A
                                  New Tillage Tool . . . . . . . . . . . . 413--413
                      Anonymous   The Current Supplement . . . . . . . . . 418--418
                      Anonymous   Palm Fiber for Brushes, A Pet Sheep
                                  Instead of a Dog, and more . . . . . . . 420--421

Scientific American
Volume 118, Number 19, May 11, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 431--431
                      Anonymous   Inventions New and Interesting . . . . . 436--436
                      Anonymous   Inventions: Recently Patented Inventions 440--442
                      Anonymous   Trade-Mark piracy, Another German
                                  Monopoly Broken, and more  . . . . . . . 442--443
                      Anonymous   Book Review: New Books, Etc. . . . . . . 444--444
                      Anonymous   Today --- and Other Days, The Lesson for
                                  America of the German Offensive, and
                                  more . . . . . . . . . . . . . . . . . . 426--427
                      Anonymous   Hogs and the War . . . . . . . . . . . . 428--429
                      Anonymous   Strategic Moves of the War --- May 1st,
                                  1918 . . . . . . . . . . . . . . . . . . 430--430
             Edward C. Crossman   The San Diego Aviator Factory  . . . . . 431--431
                      Anonymous   The Seventy-Five Mile Gun  . . . . . . . 432--432
                      Anonymous   The Attack on Zeebrugge and Ostend . . . 433--433
         William W. Sniffin and   
            Crittenden Marriott   World Markets for American Manufactures  434--435
                 E. B. Marshall   Filing of Patent, Trade Mark and
                                  Copyright Applications in Enemy
                                  Countries Forbidden  . . . . . . . . . . 436--436

Scientific American
Volume 118, Number 2, January 12, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 55--55
                      Anonymous   Inventions New and Interesting . . . . . 60--60
                      Anonymous   Inventions: Recently Patented Inventions 62--62
                      Anonymous   Book Review: New Books, Etc. . . . . . . 64--64
                      Anonymous   The United States Railway System, An
                                  Oil-Cleaning Machine Based on the Milk
                                  Separator Principle  . . . . . . . . . . 49--49
                      Anonymous   The Freedom of the Seas, Academic
                                  Freedom Again, and more  . . . . . . . . 50--51
                Mary J. Huestis   The Women Workers of Canada  . . . . . . 52--52
                Mary Dudderidge   New Light Upon Our Eyes  . . . . . . . . 53--53
                      Anonymous   Strategic Moves of the War, January 3rd,
                                  1918 . . . . . . . . . . . . . . . . . . 54--54
                 Lehman Johnson   Cotton as a Food Plant . . . . . . . . . 55--55
                    D. B. La Du   New York State Barge Canal . . . . . . . 56--57
             William W. Sniffin   World Markets for American Manufactures  58--59
                      Anonymous   The Phonograph in the Remote Districts
                                  of India . . . . . . . . . . . . . . . . 61--61
                      Anonymous   The Dye Problems of India, The Pink Ball
                                  Worm in Texas  . . . . . . . . . . . . . 63--63

Scientific American
Volume 118, Number 20, May 18, 1918

                     H. E. Howe   Service of the Chemist . . . . . . . . . 452--452
                      Anonymous   Correspondence . . . . . . . . . . . . . 453--453
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 458--458
                      Anonymous   Inventions: Recently Patented Inventions 460--460
                      Anonymous   Book Review: New Books, Etc. . . . . . . 471--472
                 R. P. Crawford   Turning Sand Hills into Pine Forests . . 447--447
                      Anonymous   Restriction of Efficiency by Order of
                                  Congress, How the Airplane Appropriation
                                  was Spent, and more  . . . . . . . . . . 448--449
                      Anonymous   Reconstructing the War's Maimed  . . . . 450--450
                      Anonymous   Seeing but not Seen  . . . . . . . . . . 451--451
                      Anonymous   The Port of Providence . . . . . . . . . 453--453
                  D. C. Ashmead   The Man who Mines Our Coal . . . . . . . 454--455
                      Anonymous   The Fool-Proof Precision Gage  . . . . . 456--457
                      Anonymous   Heading Rivets with a Hydraulic Riveter,
                                  The Current Supplement, and more . . . . 462--468
                      Anonymous   Keeping Track of Our Ships in Building,
                                  Casualties for a Big Offensive, and more 468--469

Scientific American
Volume 118, Number 21, May 25, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 479--479
                      Anonymous   Inventions New and Interesting . . . . . 484--486
                      Anonymous   Book Review: New Books, Etc. . . . . . . 492--492
                      Anonymous   The Turn of the Tide, We Should Enlarge
                                  Our Shipbuilding Program, and more . . . 474--475
                      Anonymous   Our Winged Postmen . . . . . . . . . . . 476--477
                      Anonymous   Strategic Moves of the War, May 15, 1918 478--478
                     C. G. Grey   Our Sky Army . . . . . . . . . . . . . . 479--479
                      Anonymous   Surgery in the Navy  . . . . . . . . . . 480--481
             William W. Sniffin   World Markets for American Manufactures  482--482
                      Anonymous   Some Further Particulars of the
                                  Seventy-Five-Mile Shell  . . . . . . . . 483--483
                      Anonymous   The Heroes of Zeebrugge and Ostend,
                                  Board to Consider War Inventions, and
                                  more . . . . . . . . . . . . . . . . . . 486--486
                      Anonymous   Plating of Aluminum with Nickel now
                                  Possible . . . . . . . . . . . . . . . . 488--488

Scientific American
Volume 118, Number 22, June 1, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 501--501
           Henry Norris Russell   The Heavens in June, 1918  . . . . . . . 506--506
                      Anonymous   Inventions: Recently Patented Inventions 508--508
                      Anonymous   Notes and Queries  . . . . . . . . . . . 514--514
                      Anonymous   Book Review: New Books, Etc. . . . . . . 516--516
                      Anonymous   Suggestion to Develop Niagara Falls'
                                  Full Efficiency  . . . . . . . . . . . . 495--495
                      Anonymous   The German ``Flying Tank'', Closing the
                                  North Sea, and more  . . . . . . . . . . 496--497
             Edward C. Grossman   Bullet Versus Armor  . . . . . . . . . . 498--499
                      Anonymous   The True Story of the Liberty Motor  . . 500--500
          Harry C. Ramsower and   
                   G. W. McCuen   Mechanical Equipment of the Farm . . . . 502--502
                   P. B. Potter   Leveling and Pulverizing as Furrow is
                                  Turned . . . . . . . . . . . . . . . . . 502--502
                R. B. Alexander   A Tale of a Trailer  . . . . . . . . . . 503--503
            Charles Evan Fowler   The Longest Possible Bridge Spans  . . . 504--505

Scientific American
Volume 118, Number 23, June 8, 1918

                      Anonymous   Inventions New and Interesting . . . . . 528--528
                      Anonymous   Inventions: Recently Patented Inventions 530--530
                      Anonymous   Three and a Half Years of Aerial
                                  Warfare, Can England be Invaded?, and
                                  more . . . . . . . . . . . . . . . . . . 517--519
                      Anonymous   Where England Gets her Women Workers . . 520--520
                      Anonymous   The Advantages and Increasing Use of
                                  Pulverized Coal  . . . . . . . . . . . . 521--521
                      Anonymous   Strategic Moves of the War, May 28th,
                                  1918 . . . . . . . . . . . . . . . . . . 522--522
                   C. H. Claudy   The Airplane Propeller, The Latest North
                                  Sea Mine Field . . . . . . . . . . . . . 523--523
          Austin C. Lescarboura   Behind the Scenes of an Exposition . . . 524--525
               Lemuel L. De Bra   African Sudan Grass --- The Emergency
                                  War Forage Crop  . . . . . . . . . . . . 525--525
             William W. Sniffin   World Markets for American Manufactures  526--527
                      Anonymous   Frozen Fish as Food Supply, Pitcairn
                                  Island Shipbuilding, and more  . . . . . 532--532
                      Anonymous   An Electric Furnace for Brass  . . . . . 534--534
                      Anonymous   To Replace German Goods with American
                                  Products . . . . . . . . . . . . . . . . 538--538
           Charles F. Kettering   An Engineer's View of the Liberty Engine
                                  and the Airplane Program, Soldering by
                                  the Schoop Process, and more . . . . . . 538--539

Scientific American
Volume 118, Number 24, June 15, 1918

                     H. E. Howe   Service of the Chemist . . . . . . . . . 546--546
                      Anonymous   Correspondence . . . . . . . . . . . . . 547--547
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 552--552
                      Anonymous   Our Wartime Barrel of Oil, The Amazing
                                  Case of General Wood, and more . . . . . 541--543
                 Arthur L. Dahl   Shoes for Soldiers . . . . . . . . . . . 544--545
             Robert G. Skerrett   Surgery by Mathematical Formula  . . . . 545--545
               Arthur Benington   Italian Industry in the War  . . . . . . 548--549
               Truman G. Palmer   Making America Self-Supporting . . . . . 550--551
                      Anonymous   How New York City is Preparing to Meet
                                  an Air Raid  . . . . . . . . . . . . . . 554--554
                      Anonymous   The Motorboat and the Torpedo, The
                                  Current Supplement . . . . . . . . . . . 556--556

Scientific American
Volume 118, Number 25, June 22, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 567--567
                      Anonymous   Inventions New and Interesting . . . . . 572--572
                      Anonymous   Inventions: Recently Patented Inventions 574--574
                      Anonymous   The New Mississippi, Americanization,
                                  and more . . . . . . . . . . . . . . . . 561--563
               Horace E. Thomas   Bone and Sinew for Our Aircraft  . . . . 564--564
                      Anonymous   A Laboratory on Wheels . . . . . . . . . 565--565
              Robert H. Moulton   Machine Tools of Concrete, The Current
                                  Supplement, and more . . . . . . . . . . 565--565
                      Anonymous   Strategic Moves of the War, June 12th,
                                  1918 . . . . . . . . . . . . . . . . . . 566--566
                      Anonymous   A Sea-Going Canal Boat . . . . . . . . . 568--569
             William W. Sniffin   World Markets for American Manufactures  570--570
                      Anonymous   Gauntlets and Gaiters that Defy Barbed
                                  Wire, When Ladies Learn the Art of
                                  Railroading, and more  . . . . . . . . . 571--571
                 E. B. Marshall   Trade Mark Larceny by the Enemy, The
                                  Tonnage Puzzle . . . . . . . . . . . . . 580--580

Scientific American
Volume 118, Number 26, June 29, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 587--587
                      Anonymous   Inventions New and Interesting . . . . . 592--592
                      Anonymous   Inventions: Recently Patented Inventions 594--594
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 598--598
                      Anonymous   Motor Boats Sink Battleships, Sunk But
                                  Not Lost, and more . . . . . . . . . . . 581--583
                      L. Lodian   In Unknown Soapdom . . . . . . . . . . . 584--585
                 Calvin W. Rice   The War Activities of Our Technical
                                  Societies  . . . . . . . . . . . . . . . 586--586
                      Anonymous   Wooden Ships Versus the Submarine  . . . 588--589
               Albert A. Hansen   Ergotism . . . . . . . . . . . . . . . . 590--591
                 E. B. Marshall   Extensions in Patent and Trade Mark
                                  Cases  . . . . . . . . . . . . . . . . . 592--592
                      Anonymous   Making War Specialists of Young America  596--596
                      Anonymous   What One Munition Firm is Planning to do
                                  After the War, Making a Road for the
                                  Fire Engine  . . . . . . . . . . . . . . 597--597
                      Anonymous   Making Soldiers of College Boys, Saving
                                  Grain in Threshing . . . . . . . . . . . 599--599
                      Anonymous   A Patriotic Burglar  . . . . . . . . . . 599--599

Scientific American
Volume 118, Number 3, January 19, 1918

                      Anonymous   Service of the Chemist . . . . . . . . . 70--70
                      Anonymous   Correspondence . . . . . . . . . . . . . 71--71
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 76--76
                      Anonymous   Notes and Queries  . . . . . . . . . . . 80--80
                      Anonymous   President Wilson on the Freedom of the
                                  Seas, Our New 16-Inch Naval Gun, and
                                  more . . . . . . . . . . . . . . . . . . 66--67
                      Anonymous   British and French Tanks . . . . . . . . 68--68
                   C. H. Claudy   Uncle Sam's Ground Schools for Flyers    69--69
              Albert A. Hopkins   The Equipment of an Army, State
                                  Activities of the Council of National
                                  Defense  . . . . . . . . . . . . . . . . 71--71
          Austin C. Lescarboura   Micro-Photoplays . . . . . . . . . . . . 72--75
                      Anonymous   Dr. Hugh Robert Mills  . . . . . . . . . 77--77
                      Anonymous   Unique Plan to Save Coal, The Current
                                  Supplement, and more . . . . . . . . . . 78--79

Scientific American
Volume 118, Number 4, January 26, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 87--87
                      Anonymous   Inventions New and Interesting . . . . . 92--92
                      Anonymous   Book Review: New Books, Etc. . . . . . . 96--96
                      Anonymous   The Marine Use of Concrete . . . . . . . 81--81
                      Anonymous   Liberty Motor a Brilliant Success, The
                                  Problem of Left-handedness, and more . . 82--83
                      Anonymous   Our Most Fashionable Hat for 1918  . . . 84--85
                      Anonymous   Strategic Moves of the War, January 17,
                                  1918 . . . . . . . . . . . . . . . . . . 86--86
                      Anonymous   Columbia University an Armed Camp  . . . 87--87
             Edgar C. MacMechen   Wild Game as a War Weapon  . . . . . . . 88--89
             William W. Sniffin   World Markets for American Manufactures  90--91
                      Anonymous   A Bibliography of Fruit-Drying . . . . . 94--94
                      Anonymous   The Current Supplement, New Type of
                                  English Hard Porcelain, and more . . . . 95--95

Scientific American
Volume 118, Number 5, February 2, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 105--105
           Henry Norris Russell   The Heavens in February, 1918  . . . . . 108--108
                      Anonymous   Inventions New and Interesting . . . . . 110--110
                      Anonymous   Inventions: Recently Patented Inventions 112--112
                      Anonymous   Notes and Queries  . . . . . . . . . . . 123--123
                      Anonymous   Book Review: New Books, Etc. . . . . . . 124--124
                      Anonymous   Casting Pipe Centrifugally . . . . . . . 99--99
                      Anonymous   Protection for the Port of New York,
                                  Conservation of the Nation's Water
                                  Power, and more  . . . . . . . . . . . . 100--101
                  Jacques Boyer   The High Heel in Motion Picture and
                                  X-ray  . . . . . . . . . . . . . . . . . 102--103
            Crittenden Marriott   Who Exports --- And How? . . . . . . . . 104--104
                      Anonymous   The Twentieth Century Trolley Hospital   106--106
             Edward C. Crossman   Shotguns for Our Aviators  . . . . . . . 107--107
                   John Jay Ide   The Spad Pursuit Biplane . . . . . . . . 107--107
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 109--109
                     J. M. Bird   A Steel Mule that Drives Like a Horse    109--109
                      Anonymous   France--England Airplane Postal Service  118--118
                      Anonymous   Nitrate for Farmers at Cost, Trade Marks
                                  in Great Britain, and more . . . . . . . 119--122

Scientific American
Volume 118, Number 6, February 9, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 131--131
                      Anonymous   Inventions New and Interesting . . . . . 136--136
                      Anonymous   Inventions: Recently Patented Inventions 138--138
                      Anonymous   Shells That Will Dive  . . . . . . . . . 125--125
                      Anonymous   Can Shell-Scarred Battlefields be
                                  Cultivated?, The Nursing Place of
                                  Industrial Evolution, and more . . . . . 126--127
                      Anonymous   Successful Handling of a Difficult
                                  Salvage Task . . . . . . . . . . . . . . 128--129
                      Anonymous   Strategic Moves of the War, January
                                  30th, 1918 . . . . . . . . . . . . . . . 130--130
                      Anonymous   Improving War Bread with Lime-Water  . . 131--131
               Reginald A. Daly   Thirteen-foot Model of the World's Most
                                  Active Volcano . . . . . . . . . . . . . 132--132
                  C. Dienstbach   Our Enemies in the Air . . . . . . . . . 133--133
              Wiliam W. Sniffin   World Markets for American Manufactures  134--134
                      Anonymous   A Way to Enormous Coal Economies . . . . 135--135
                      Anonymous   Obtaining Electricity Direct from Coal
                                  Gas  . . . . . . . . . . . . . . . . . . 140--140

Scientific American
Volume 118, Number 7, February 16, 1918

                     H. E. Howe   Service of the Chemist . . . . . . . . . 146--146
                      Anonymous   Correspondence . . . . . . . . . . . . . 147--147
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 152--152
                      Anonymous   Inventions: Recently Patented Inventions 154--154
                      Anonymous   Intrenching Telephone Cable to Protect
                                  it Against Hooks and Anchors, British
                                  Experience with Corrugated Ships, and
                                  more . . . . . . . . . . . . . . . . . . 141--143
                      Anonymous   Tapping China's Reservoir of Man Power   144--145
                Joseph E. Pogue   Mineral Resources from a Military
                                  Standpoint . . . . . . . . . . . . . . . 147--147
                      Anonymous   Modern Designs from Ancient Fabrics  . . 148--149
              Albert A. Hopkins   New Army Insignia, Curious Cloth
                                  Testing, and more  . . . . . . . . . . . 149--149
                     A. C. Laut   Are we Building Real Ships?  . . . . . . 150--151
                      Anonymous   Bedding ``Wool'' made out of Cork,
                                  Improved Method of Sterilizing Liquids,
                                  and more . . . . . . . . . . . . . . . . 156--159
                      Anonymous   Coal Production of Serbian Mines,
                                  Standardizing Paints and Containers in
                                  War-Time, and more . . . . . . . . . . . 159--160

Scientific American
Volume 118, Number 8, February 23, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 167--167
                      Anonymous   Inventions New and Interesting . . . . . 172--172
                      Anonymous   Inventions: Recently Patented Inventions 174--174
                      Anonymous   Notes and Queries  . . . . . . . . . . . 180--180
                      Anonymous   A Ship Within a Ship . . . . . . . . . . 161--161
                      Anonymous   The War Behind the Front, Alien Crews On
                                  Our Merchantships, and more  . . . . . . 162--163
                 J. F. Springer   Building a Dam of Concrete Slabs . . . . 164--164
                      Anonymous   Blowing up the Enemy . . . . . . . . . . 165--165
                      Anonymous   Strategic Review of the War, February
                                  12th, 1918 . . . . . . . . . . . . . . . 166--166
                      Anonymous   The World in Miniature . . . . . . . . . 168--169
             William W. Sniffin   World Markets for American Manufactures  170--171
               Frank C. Perkins   Guide Carriage for Laying Large Sewage
                                  Concrete Pipes in Tunnels  . . . . . . . 172--172
             Percival A. Hislam   The Three-Decker and the Dreadnought . . 179--179

Scientific American
Volume 118, Number 9, March 2, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 189--189
           Henry Norris Russell   The Heavens in March, 1918 . . . . . . . 192--192
                      Anonymous   Inventions New and Interesting . . . . . 194--196
                      Anonymous   Gas Warfare, The Current Supplement, and
                                  more . . . . . . . . . . . . . . . . . . 194--199
                      Anonymous   Inventions: Recently Patented Inventions 196--196
                      Anonymous   Book Review: New Books, Etc. . . . . . . 198--198
                      Anonymous   New Methods in Bulkhead Construction . . 183--183
                      Anonymous   The Rôle of the Airplane Mechanic, The
                                  Sense of Smell In Insects, and more  . . 184--185
                      Anonymous   Extracting Stories from Stones . . . . . 186--187
                      Anonymous   Putting X-Rays Through their Paces . . . 188--188
             Percival A. Hislam   Analysis of British Warship Losses . . . 189--189
               Adachi Kinnosuke   Japan and the War  . . . . . . . . . . . 190--191
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 193--193


Scientific American
Volume 119, Number 1, July 6, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 9--9
           Henry Norris Russell   The Heavens in July, 1918  . . . . . . . 12--13
                      Anonymous   Inventions New and Interesting . . . . . 14--14
                      Anonymous   Inventions: Recently Patented Inventions 16--16
                      Anonymous   July Fourth in Our Shipyards, A New
                                  Chemical Show, and more  . . . . . . . . 3--5
                      Anonymous   The Government and the Distribution of
                                  Coal . . . . . . . . . . . . . . . . . . 6--7
                      Anonymous   Strategic Moves of the War, June 25th,
                                  1918 . . . . . . . . . . . . . . . . . . 8--8
             Percival A. Hislam   The Safety Zone for the Submarine  . . . 9--9
                      Anonymous   Filming Marine Life  . . . . . . . . . . 10--10
              Robert H. Moulton   Making Airmen Surprise-Proof, Electric
                                  Light and Power for the Farmer . . . . . 11--11
                 E. B. Marshall   The Use of Patented Inventions by the
                                  United States Government . . . . . . . . 14--14
                      Anonymous   Sky-Rockets of the Night Fighters, The
                                  Current Supplement . . . . . . . . . . . 18--18

Scientific American
Volume 119, Number 10, September 7, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 189--189
                      Anonymous   Inventions New and Interesting . . . . . 194--200
                      Anonymous   Inventions: Recently Patented Inventions 196--196
                      Anonymous   Book Review: New Books, Etc. . . . . . . 203--204
                      Anonymous   The Art of Being Interviewed,
                                  Safeguarding our Military Ideas, and
                                  more . . . . . . . . . . . . . . . . . . 184--185
                 W. A. Starrett   The Government's Vast Building Program   186--187
                A. Russell Bond   Is the Motor Car a Non-Essential?  . . . 188--188
                      Anonymous   Tricks and Acrobatics of the Air Fighter 188--188
               Charles A. Eaton   Teaching the Worker to Feel the War  . . 190--191
                   C. H. Claudy   ``The Wasters'' --- and Fair Play  . . . 192--193
                   A. G. Vestal   The Cousin of the Cafeteria  . . . . . . 193--193
               Frank C. Perkins   A Portable Gasoline Drag Saw . . . . . . 194--194
                      Anonymous   Making Soaps and Munitions from the
                                  Garbage Pail, The Liberty Aero Oil Which
                                  Meets the Requirements of Aviation, and
                                  more . . . . . . . . . . . . . . . . . . 200--202

Scientific American
Volume 119, Number 11, September 18, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 211--211
                      Anonymous   Inventions New and Interesting:
                                  Inventions New and interesting . . . . . 216--216
                      Anonymous   Book Review: New Books, Etc. . . . . . . 220--220
                      Anonymous   Women and the Labor Shortage, Worn Out
                                  German Guns, and more  . . . . . . . . . 206--207
                A. Russell Bond   Good Housekeeping in the Factory . . . . 208--209
                      Anonymous   Strategic Moves of the War, September 4,
                                  1918 . . . . . . . . . . . . . . . . . . 210--210
               Samuel J. Record   Defects in Airplane Woods  . . . . . . . 212--212
                 W. A. Starrett   The Government's Emergency Construction
                                  Contract . . . . . . . . . . . . . . . . 213--213
                Lynn W. Meekins   World Markets for American Manufactures  214--215
                      Anonymous   The Current Supplement . . . . . . . . . 218--218

Scientific American
Volume 119, Number 12, September 21, 1918

                     H. E. Howe   Service of the Chemist . . . . . . . . . 228--228
                      Anonymous   Correspondence . . . . . . . . . . . . . 229--229
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 234--234
                      Anonymous   Book Review: New Books, Etc. . . . . . . 242--242
                      Anonymous   Notes and Queries  . . . . . . . . . . . 244--244
                      Anonymous   Oddities in Recent Aircraft Design . . . 223--223
                      Anonymous   Conservative Optimism, Books For Blinded
                                  Soldiers, and more . . . . . . . . . . . 224--225
                      Anonymous   For those who See with their Fingers . . 226--227
                  Mark M. Jones   The New Cycle in Industrial Organization 229--229
                      Anonymous   The Art of Soap-Making . . . . . . . . . 230--230
             Edward C. Crossman   Sea-Weed for War, Clearing the Way for
                                  the Trolley  . . . . . . . . . . . . . . 231--231
                      Anonymous   Textile Engineers of Tomorrow  . . . . . 232--233
                      Anonymous   The Current Supplement . . . . . . . . . 236--236
                      Anonymous   Manufacture of Printing Ink  . . . . . . 240--240

Scientific American
Volume 119, Number 13, September 28, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 251--251
           Henry Norris Russell   The Heavens in October, 1918 . . . . . . 254--255
                      Anonymous   Inventions New and Interesting . . . . . 256--256
                      Anonymous   Inventions: Recently Patented Inventions 258--258
                      Anonymous   Book Review: New Books, Etc. . . . . . . 264--264
                      Anonymous   The Publisher's Dilemma, Germany and the
                                  French Ore Deposits, and more  . . . . . 246--247
               Samuel J. Record   Woods for Making Airplanes . . . . . . . 248--249
                      Anonymous   Strategic Moves of the War, September
                                  18th, 1918 . . . . . . . . . . . . . . . 250--250
             Robert G. Skerrett   How Holland will Dispose of the Zuyder
                                  Zee  . . . . . . . . . . . . . . . . . . 251--251
                 W. A. Starrett   The Construction Division of the United
                                  States Army  . . . . . . . . . . . . . . 252--253
               J. Fidel Tristan   The Inertia of the Eye, Recording the
                                  Movement of a Climbing Plant . . . . . . 255--255
                      Anonymous   The Current Supplement . . . . . . . . . 261--261
                      Anonymous   Potash from the Lavas of Vesuvius,
                                  French Use of X-Rays on Metals, and more 262--263

Scientific American
Volume 119, Number 14, October 5, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 273--273
                      Anonymous   Inventions New and Interesting . . . . . 277--277
                 Le Roy Jeffers   The Temple of the Gods in Utah . . . . . 267--267
                      Anonymous   Will Tanks Win the War?, Food Facts
                                  Versus Fallacies, and more . . . . . . . 268--269
                      Anonymous   Gunstocks  . . . . . . . . . . . . . . . 270--270
                      Anonymous   The Pigeon Express . . . . . . . . . . . 271--271
             Edward C. Crossman   The Self-Loading Military Rifle  . . . . 272--272
                      Anonymous   Cooking Corn Gobs  . . . . . . . . . . . 273--273
            Bertram W. Williams   Recent Enemy Aircraft  . . . . . . . . . 274--274
                      Anonymous   In the Gas-Mask Factory  . . . . . . . . 275--275
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 276--276
             William W. Sniffin   World Markets for American Manufactures  280--282
                      Anonymous   New Apparatus for Washing Coal, Trench
                                  Fever Traced to Vermin, and more . . . . 283--284

Scientific American
Volume 119, Number 15, October 12, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 293--293
                      Anonymous   Inventions New and Interesting . . . . . 298--298
                      Anonymous   What Export Trade Means to American
                                  Industry . . . . . . . . . . . . . . . . 287--287
                      Anonymous   Federal and State Coöperation for
                                  Post-Bellum Reconstruction, Problems of
                                  Peace, and more  . . . . . . . . . . . . 288--289
                 Arthur L. Dahl   Out-of-the-way Jobs for the Tractor  . . 290--290
               E. Clemens Horst   Dehydration Industry in America  . . . . 291--291
                      Anonymous   Strategic Moves of the War, October 2nd,
                                  1918 . . . . . . . . . . . . . . . . . . 292--292
                     H. E. Howe   Outstripping Germany in the Chemical
                                  Industry . . . . . . . . . . . . . . . . 293--293
                      Anonymous   ``Most Powerful Locomotive in the
                                  World''  . . . . . . . . . . . . . . . . 294--295
                 W. A. Starrett   Who Shall do It? . . . . . . . . . . . . 296--296
                      Anonymous   Some Tools of the German Airmen, Have
                                  the Germans Developed a Practical Super
                                  Machine Gun?, and more . . . . . . . . . 297--297
                      Anonymous   The Current Supplement . . . . . . . . . 300--300
                      Anonymous   Where Battle Waste is Salvaged . . . . . 304--304

Scientific American
Volume 119, Number 16, October 19, 1918

                     H. E. Howe   Service of the Chemist . . . . . . . . . 312--312
                      Anonymous   Correspondence . . . . . . . . . . . . . 313--313
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 318--318
                      Anonymous   Inventions: Recently Patented Inventions 320--320
                      Anonymous   Our Army in Forest and Factory, National
                                  Characteristics, and more  . . . . . . . 308--309
                  Percy Collins   The Industrious Photographer . . . . . . 310--311
                   C. H. Claudy   Some Aviation Economics  . . . . . . . . 313--313
                      Anonymous   Salvaging the Steamship ``St. Paul'' . . 314--315
             Edward C. Crossman   A Successful Cotton Picker, The Federal
                                  Government's Mussel Farm, and more . . . 315--317
                      Anonymous   The Current Supplement . . . . . . . . . 323--323
                      Anonymous   Quantitative Spectrum Analysis, Test
                                  Without Destruction as Achieved by the
                                  Permeameter, and more  . . . . . . . . . 327--328

Scientific American
Volume 119, Number 17, October 26, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 335--335
           Henry Norris Russell   The Heavens in November, 1918  . . . . . 338--338
                      Anonymous   Inventions New and Interesting . . . . . 340--347
                      Anonymous   Inventions: Recently Patented Inventions 342--342
                      Anonymous   Motion Pictures of Metal Stresses,
                                  Nature of Rice Polish And Its Use  . . . 329--329
                      Anonymous   The Majesty of The Law, Hindenburg's
                                  Dilemma, and more  . . . . . . . . . . . 330--331
                      Anonymous   Selling Electric Service By The Can, To
                                  Keep The Automobile Engine From Stalling 332--332
                      Anonymous   Anti-U-Boat Operations of the French
                                  Navy . . . . . . . . . . . . . . . . . . 333--333
                      Anonymous   Strategic Moves of the War, October
                                  16th, 1918 . . . . . . . . . . . . . . . 334--334
                      Anonymous   Training Our Aerial Bombers  . . . . . . 336--337
                Lynn W. Meekins   World Markets for American Manufactures  339--339

Scientific American
Volume 119, Number 18, November 2, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 355--355
                      Anonymous   Inventions New and Interesting . . . . . 360--363
                      Anonymous   Inventions: Recently Patented Inventions 364--365
            Prince Sarath Ghosh   How the Hindoo Juggler Catches Fish from
                                  the Air  . . . . . . . . . . . . . . . . 349--349
                      Anonymous   Delay Due to Strikes, Peace By
                                  Correspondence, and more . . . . . . . . 350--351
                      Anonymous   Artillery which Keeps Pace with the
                                  Infantry . . . . . . . . . . . . . . . . 352--353
           Charles Henry Davies   Earth Roads and Air Roads  . . . . . . . 354--354
                   C. H. Claudy   With Scalpel and Drug  . . . . . . . . . 355--355
                 Wade W. Oliver   Spanish Influenza  . . . . . . . . . . . 356--357
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 358--359
                      Anonymous   Textile and Paper from Pipe Needles, The
                                  Land of the Ersatz . . . . . . . . . . . 368--368

Scientific American
Volume 119, Number 19, November 9, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 375--375
                      Anonymous   Inventions: Recently Patented Inventions 380--380
                      Anonymous   The Redemption of the City of Lille,
                                  ``Restitution and Reparation'', and more 370--371
               Franklin K. Lane   Farms for Returned Soldiers  . . . . . . 372--373
                   W. A. Cannon   Some Biological Features of Roots  . . . 373--373
                      Anonymous   Strategic Moves of the War, October
                                  30th, 1918 . . . . . . . . . . . . . . . 374--374
                      Anonymous   Development of Vegetable-Drying in
                                  Germany  . . . . . . . . . . . . . . . . 375--375
                   C. H. Claudy   The Men Behind the Guns  . . . . . . . . 376--377
                      Anonymous   The New Approach to the Grand Central
                                  Depot  . . . . . . . . . . . . . . . . . 378--379
                    R. Michaels   How the Red Cross Saves Gasoline . . . . 384--384

Scientific American
Volume 119, Number 2, July 13, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 31--31
               Robert W. Neeser   The Rôle of the Kite-Balloon in
                                  Anti-Submarine Operations  . . . . . . . 25--25
                      Anonymous   ``Unsinkable'' Cargo Ships, Something
                                  for Nothing, and more  . . . . . . . . . 26--27
                      Anonymous   Motion-Picture Portrait Photography  . . 28--28
                   W. F. Wilcox   Mountains of Oil . . . . . . . . . . . . 29--29
                   C. H. Claudy   Work of the War Trade Board  . . . . . . 30--30
              Robert H. Moulton   Shadows Cast During a Partial Eclipse,
                                  Notice to Our Subscribers  . . . . . . . 31--31
                      Anonymous   The French Design an Unsinkable Ship . . 32--32
                      Anonymous   Machines for Making Wooden Ships . . . . 33--33
             William W. Sniffin   World Markets for American Manufactures  34--34
               F. Honoré   A Further Advance in Mechanical Surgery,
                                  Re-Dressing ``Dude'' Shells in New
                                  Working Clothes, and more  . . . . . . . 35--35
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 36--36
            E. G. Bothwell-Maye   Fly Destruction by Manure  . . . . . . . 36--36
                   P. B. Potter   Mounting the Gasoline Engine, Loading
                                  Hay by Wind Power  . . . . . . . . . . . 36--36
                      Anonymous   The Current Supplement . . . . . . . . . 38--38
                      Anonymous   Loss of Blood Treated by the Serum
                                  Method, Paper Clothing . . . . . . . . . 39--40

Scientific American
Volume 119, Number 20, November 16, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 391--391
                     H. E. Howe   Service of the Chemist . . . . . . . . . 394--395
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 396--396
                      Anonymous   Inventions: Recently Patented Inventions 398--398
                      Anonymous   Book Review: New Books, Etc. . . . . . . 404--404
                      Anonymous   The Hughes Aircraft Report, A Study in
                                  Cause and Effect, and more . . . . . . . 386--387
                      Anonymous   Whale Meat Approved by the American
                                  Public . . . . . . . . . . . . . . . . . 388--389
                  Leonard Hatch   The Food Administration and the Nation's
                                  Response . . . . . . . . . . . . . . . . 390--390
                  Thaleon Blake   War and Discovery  . . . . . . . . . . . 391--391
                   C. H. Claudy   In the Service of the Guns . . . . . . . 392--393
                      Anonymous   Improving the Port of New York, The
                                  Minerals Act . . . . . . . . . . . . . . 401--401
                      Anonymous   A New German Drying Process, Why Eggs
                                  should not be Washed, and more . . . . . 403--403

Scientific American
Volume 119, Number 21, November 23, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 411--411
                      Anonymous   Inventions New and Interesting . . . . . 416--416
                      Anonymous   Inventions: Recently Patented Inventions 418--418
                      Anonymous   Book Review: New Books, Etc. . . . . . . 427--428
                      Anonymous   Italian Sea Tank, The Need for Tin in
                                  the Manufacture of Silk, and more  . . . 405--407
                   C. H. Claudy   Our Aerial Sausages  . . . . . . . . . . 408--409
            William C. Redfield   Reconstruction . . . . . . . . . . . . . 410--410
            Cyril Arthur Player   Finland and the World's Next Paper
                                  Supply . . . . . . . . . . . . . . . . . 411--411
                Arthur C. Carty   Canada's New Niagara Development . . . . 412--413
                Lynn W. Meekins   World Markets for American Manufactures  414--414
                     Kurt Heppe   Substitute Bread, The Poilu's Daily
                                  Bread, and more  . . . . . . . . . . . . 415--415
                      Anonymous   The Current Supplement, Largest
                                  Automatic Phone Exchange, and more . . . 425--426

Scientific American
Volume 119, Number 22, November 30, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 437--437
           Henry Norris Russell   The Heavens in December, 1918  . . . . . 440--440
                      Anonymous   Inventions New and Interesting . . . . . 442--442
                      Anonymous   Inventions: Recently Patented Inventions 444--444
                      Anonymous   The Secret of the ``Baby'' Tank, New
                                  Deposits of Saltpeter  . . . . . . . . . 431--431
                      Anonymous   Peace And Naval Policy, Using The
                                  Planes, and more . . . . . . . . . . . . 432--433
              J. Bernard Walker   Great Britain at War . . . . . . . . . . 434--435
                 Edgar L. Smith   The Farm Accounting Problem  . . . . . . 436--436
                  L. W. Schmidt   Reconstructing Ocean Highways after the
                                  War  . . . . . . . . . . . . . . . . . . 437--437
                Fred W. Vincent   Getting Out Airplane Spruce  . . . . . . 438--439
                      Anonymous   The American Pacific Ocean . . . . . . . 441--441
                      Anonymous   Testing Soils by Testing Assimilation in
                                  Plants . . . . . . . . . . . . . . . . . 445--445
                      Anonymous   The Current Supplement, Radio
                                  Communications and the Great War, and
                                  more . . . . . . . . . . . . . . . . . . 447--448

Scientific American
Volume 119, Number 23, December 7, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 457--457
                      Anonymous   Inventions New and Interesting . . . . . 462--462
                      Anonymous   Abolish the Submarine, The Economics of
                                  Reconstruction, and more . . . . . . . . 452--453
         John Walker Harrington   The Saving Grace of War  . . . . . . . . 454--454
                      Anonymous   The Liberty Motor  . . . . . . . . . . . 455--455
                Lynn W. Meekins   World Markets for American Manufactures  456--456
                      Anonymous   Wireless Telegraphy and Static . . . . . 457--457
                      Anonymous   The Surrender of the German Fleet  . . . 458--459
                   C. H. Claudy   Gun Camouflage . . . . . . . . . . . . . 460--460
                      Anonymous   Side Lights on Rehabilitation, The
                                  Flying Tank of the Germans, and more . . 461--461
                      Anonymous   The Current Supplement . . . . . . . . . 464--464

Scientific American
Volume 119, Number 24, December 14, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 477--477
                      Anonymous   Inventions New and Interesting . . . . . 484--484
                      Anonymous   Cutting Power Bills on the Irrigated
                                  Farm . . . . . . . . . . . . . . . . . . 471--471
                      Anonymous   The Freedom of The Seas, During And
                                  After The War, and more  . . . . . . . . 472--473
                    Bolton Hall   The One-Piece House  . . . . . . . . . . 474--475
                      Anonymous   Economics of Peace . . . . . . . . . . . 476--476
                   C. H. Claudy   Spotting the Shots . . . . . . . . . . . 477--477
          Austin C. Lescarboura   Our Navy's Winged Destroyers . . . . . . 480--481
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 482--482
                      Anonymous   Reconstruction, The Current Supplement   485--485

Scientific American
Volume 119, Number 25, December 21, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 497--497
                     H. E. Howe   Service of the Chemist . . . . . . . . . 500--501
                      Anonymous   The ``Hush'' Ships of the British Navy   491--491
                      Anonymous   The Aircraft Situation, Reconstruction,
                                  and more . . . . . . . . . . . . . . . . 492--493
                   C. H. Claudy   A Place for Every Man  . . . . . . . . . 494--495
          Colonel O. B. Mitcham   The End of the World War . . . . . . . . 496--496
                   Thomas Ewing   The Needs of the Patent Office . . . . . 497--497
                      Anonymous   Concerning Cotton Seed . . . . . . . . . 498--498
          Ford Ashman Carpenter   Ice Formation Over a Stream, A Record
                                  Shot of Grizzly Bears, and more  . . . . 501--501
                Lynn W. Meekins   World Markets for American Manufactures  502--502
                      Anonymous   The Current Supplement . . . . . . . . . 504--504
                      Anonymous   Canal Zone Investigations  . . . . . . . 508--508

Scientific American
Volume 119, Number 26, December 28, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 517--517
                      Anonymous   Inventions New and Interesting . . . . . 523--523
                      Anonymous   Inventions: Recently Patented Inventions 526--526
                      Anonymous   Index  . . . . . . . . . . . . . . . . . 538--538
                      Anonymous   Book Review: New Books, Etc. . . . . . . 539--539
                      Anonymous   An Airplane Built to be Shot Down, Baby
                                  Chicks by Parcel Post, and more  . . . . 511--513
                      Anonymous   Some Motor Truck Economics . . . . . . . 514--514
                      Anonymous   The American Destroyer . . . . . . . . . 515--515
               John S. Harwhite   The Truck Triangle . . . . . . . . . . . 516--516
                  Howard Warren   The Trend of Tractor Development . . . . 516--516
                Marcus Benjamin   The New President of the American
                                  Association for the Advancement of
                                  Science  . . . . . . . . . . . . . . . . 517--517
                 John R. Eustis   Motorizing the Mails . . . . . . . . . . 518--518
                      Anonymous   Electrically-Heated Soles for the
                                  Aviator's Cold Feet, Where Camouflage
                                  Robes were Made, and more  . . . . . . . 519--519
             Harry Wilkin Perry   Post-War Status of Motor Truck Industry  520--521
                      Anonymous   Concrete and Cold Weather, A Timely
                                  Adjustment . . . . . . . . . . . . . . . 522--522
                      Anonymous   The Current Supplement . . . . . . . . . 530--530

Scientific American
Volume 119, Number 3, July 20, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 49--49
                     H. E. Howe   Service of the Chemist . . . . . . . . . 52--52
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 54--54
                      Anonymous   Inventions: Recently Patented Inventions 56--56
                 R. G. Skerrett   The Salvage of Deeply Sunken Ships . . . 43--43
                      Anonymous   Fifteen Months of War Preparation, The
                                  Individual Responsibility, and more  . . 44--45
                      Anonymous   The Teleferica . . . . . . . . . . . . . 46--46
                      Anonymous   Fifty Billion German Allies Already in
                                  the American Field . . . . . . . . . . . 47--47
                      Anonymous   Strategic Moves of the War, July 10th,
                                  1918 . . . . . . . . . . . . . . . . . . 48--48
              Robert H. Moulton   Turning Smoke into Money . . . . . . . . 50--50
                      Anonymous   High Grade Electric Steel  . . . . . . . 51--51
                      Anonymous   Our First Handley--Page Plane --- The
                                  ``Langley'', A Photographic Working
                                  Model of the Gnome Aviation Engine,
                                  Cheaper Radium . . . . . . . . . . . . . 53--53

Scientific American
Volume 119, Number 4, July 27, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 67--67
           Henry Norris Russell   The Heavens in August, 1918  . . . . . . 70--70
                      Anonymous   Inventions New and Interesting . . . . . 72--72
                      Anonymous   Inventions: Recently Patented Inventions 74--74
                      Anonymous   Book Review: New Books, Etc. . . . . . . 79--79
                      Anonymous   Notes and Queries  . . . . . . . . . . . 80--80
                      Anonymous   The Photographic Eye and Memory of the
                                  Military Airman  . . . . . . . . . . . . 61--61
                      Anonymous   A No-Decision War, Stolen Battleships,
                                  and more . . . . . . . . . . . . . . . . 62--63
             Arthur J. Eldredge   A Flower that Catches Insects  . . . . . 64--64
                      Anonymous   Spraying Smoke Clouds Out of Sight . . . 65--65
                Lynn W. Meekins   World Markets for American Manufactures  66--66
                      Anonymous   From the Trenches to Open Warfare  . . . 68--69
                      Anonymous   Opening a New Link of New York's Vast
                                  Subway System  . . . . . . . . . . . . . 71--71
                 E. B. Marshall   Price Fixing Contracts on Patented
                                  Articles . . . . . . . . . . . . . . . . 72--72
                      Anonymous   Improving Fish by Smoking It . . . . . . 77--77

Scientific American
Volume 119, Number 5, August 3, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 89--89
                      Anonymous   Inventions New and Interesting . . . . . 94--94
                      Anonymous   Felling a Smokestack in a Limited Space,
                                  Hardening Rails as they Lie in the
                                  Track, and more  . . . . . . . . . . . . 83--85
                      Anonymous   Bombing Planes and their Targets . . . . 86--86
                      Anonymous   Telephone Tangles  . . . . . . . . . . . 87--87
                      Anonymous   Strategic Moves of the War, July 24th,
                                  1918 . . . . . . . . . . . . . . . . . . 88--88
             Harrington Emerson   Coming Back to a Peace Basis . . . . . . 89--89
                 Edward Harding   The Shortage of Ships  . . . . . . . . . 90--91
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 92--93
                Fred. A. Talbot   The Cine-Motor --- Touring ``Movies''
                                  Equipment of the British Government  . . 93--93
                 Rozel Gotthold   Unique Means for the Removal of a Single
                                  Bale of Cotton from a Pile . . . . . . . 94--94
                      Anonymous   Application of the Browning Gun to
                                  Airplanes  . . . . . . . . . . . . . . . 100--100

Scientific American
Volume 119, Number 6, August 10, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 107--107
                      Anonymous   Inventions New and Interesting . . . . . 112--112
             Robert G. Skerrett   A Navigational Safeguard for
                                  Trans-Atlantic Flight  . . . . . . . . . 101--101
                      Anonymous   Can Germany be Crushed in the Air?,
                                  Hoist With Their Own Petard, and more    102--103
                  Jacques Boyer   When the Hun Comes to Paris  . . . . . . 104--104
              Robert H. Moulton   The Circular Farm, Watering the Garden
                                  by Long-Distance Telephone, and more . . 105--105
                   A. D. Holmes   What Shall we do with Wheat Bran?  . . . 106--106
               Arthur Benington   Italy's Contribution in the Shipping
                                  Crisis . . . . . . . . . . . . . . . . . 108--109
                Lynn W. Meekins   World Markets for American Manufactures  110--110
                     J. M. Bird   Electric Weighing of a Moving Mass . . . 111--111
                 E. B. Marshall   Scope of Trade Mark Registrations  . . . 112--112
                      Anonymous   The Current Supplement . . . . . . . . . 113--113
                      Anonymous   Brightening the World  . . . . . . . . . 115--116
                      Anonymous   How Better Medical Care Increases the
                                  Strength of Our Army . . . . . . . . . . 116--116

Scientific American
Volume 119, Number 7, August 17, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 127--128
                     H. E. Howe   Service of the Chemist . . . . . . . . . 130--130
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 132--132
                      Anonymous   Book Review: New Books, Etc. . . . . . . 143--144
                      Anonymous   Camouflaged Roads of the War, A New Kind
                                  of Anchor Chain, and more  . . . . . . . 121--123
                      Anonymous   Via Motor Truck  . . . . . . . . . . . . 124--124
                      Anonymous   Motor Trucks in the War  . . . . . . . . 125--125
                      Anonymous   Strategic Moves of the War, August 7th,
                                  1918 . . . . . . . . . . . . . . . . . . 126--126
                   C. H. Claudy   Postal Motor Trucks  . . . . . . . . . . 127--127
                      Anonymous   Motorized Railways . . . . . . . . . . . 129--129
                Ellis W. Shuler   The Intermittent Siphon in Nature  . . . 131--131
                      Anonymous   The Current Supplement . . . . . . . . . 136--136
                      Anonymous   How we are Training Our Specialists in
                                  Gas Warfare  . . . . . . . . . . . . . . 136--136
                      Anonymous   Navigating Instruments of Our Aerial
                                  Pilots, How Germany Utilized England's
                                  Tin Plate Scrap, and more  . . . . . . . 141--142

Scientific American
Volume 119, Number 8, August 24, 1918

                      Anonymous   Correspondence . . . . . . . . . . . . . 151--151
                      Anonymous   Inventions New and Interesting . . . . . 156--159
                      Anonymous   Book Review: New Books, Etc. . . . . . . 160--160
                      Anonymous   The Road to Freedom through an Empty
                                  Barrel . . . . . . . . . . . . . . . . . 145--145
                      Anonymous   The U-Boat off our Coasts, The Enemy In
                                  Our Midst, and more  . . . . . . . . . . 146--147
                      Anonymous   Tactics and Tanks  . . . . . . . . . . . 148--149
                  Mark M. Jones   A Plea for Intensification of Management 150--150
                      Anonymous   Camouflaged Food . . . . . . . . . . . . 152--153
                Lynn W. Meekins   World Markets for American Manufactures  154--154
                 Le Roy Jeffers   The Mammoth and Great Onyx Caves . . . . 155--155

Scientific American
Volume 119, Number 9, August 31, 1918

           Henry Norris Russell   The Heavens in September, 1918 . . . . . 170--171
                      Anonymous   Inventions New and Interesting . . . . . 172--179
                      Anonymous   Inventions: Recently Patented Inventions 174--174
                      Anonymous   Book Review: New Books, Etc. . . . . . . 180--180
                      Anonymous   St. Patrick in the Patent Office,
                                  Disillusionment, and more  . . . . . . . 162--163
          Austin C. Lescarboura   At the Other End of the Phonograph . . . 164--164
                      Anonymous   Ships of Stone --- 1849 to 1918  . . . . 165--165
                      Anonymous   Strategic Moves of the War, August 22d,
                                  1918 . . . . . . . . . . . . . . . . . . 166--167
                      Anonymous   Odd Ways of Transporting Wounded
                                  Soldiers . . . . . . . . . . . . . . . . 168--169
               Frank C. Perkins   Novel Auto Reel  . . . . . . . . . . . . 172--172


Scientific American
Volume 120, Number 1, January 4, 1919

           Henry Norris Russell   The Heavens for January, 1919  . . . . . 14--14
                      Anonymous   Inventions New and Interesting . . . . . 16--16
                      Anonymous   Notes and Queries  . . . . . . . . . . . 20--20
                      Anonymous   The Coos County Forests, Mt. Katmai
                                  Explorations . . . . . . . . . . . . . . 3--3
                      Anonymous   Harmony of the Peace Conference
                                  Threatened, The Factory and the Home,
                                  Fossils from the Canadian Rockies  . . . 4--4
                      Anonymous   Review of the Year 1918  . . . . . . . . 5--5
                      Anonymous   Where Nothing Goes to Waste  . . . . . . 6--6
                      Anonymous   Our Giant Aircraft . . . . . . . . . . . 7--7
                   Hudson Maxim   Peace Parley Problems  . . . . . . . . . 8--8
                      Anonymous   Proposed Swiss National Trade-Mark,
                                  Preserve Your Papers: They Are of
                                  Permanent Value  . . . . . . . . . . . . 9--9
                      Anonymous   The Dogs of War  . . . . . . . . . . . . 10--11
                Lynn W. Meekins   World Markets for American Manufactures  12--13
                      Anonymous   California's Fossil Mine, Simple Perfume
                                  Making, The Water Monitor  . . . . . . . 15--15
                      Anonymous   Iron that can be Whittled  . . . . . . . 18--18
                      Anonymous   Farm Trademarks that Bring Business  . . 19--19

Scientific American
Volume 120, Number 10, March 8, 1919

           Henry Norris Russell   The Heavens in March, 1919 . . . . . . . 224--224
                      Anonymous   Correspondence . . . . . . . . . . . . . 225--225
                      Anonymous   Inventions New and Interesting . . . . . 234--234
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 244--244
                      Anonymous   Daylight Saving and the Farmer, The
                                  Declining Supply of Motor Fuel, and more 220--221
                      Anonymous   The Proposed Vehicular Tunnel Under the
                                  Hudson River . . . . . . . . . . . . . . 222--223
               Robert W. Neeser   The Work of the French Seaplanes . . . . 226--226
                      Anonymous   The Monitors of the Present War  . . . . 227--227
                   C. H. Claudy   Reconstruction in Europe --- IV  . . . . 228--228
                      Anonymous   The Hydrophone for Locating Submarines   229--229
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 232--233
                   C. W. Geiger   High-Pressure Hydrant Regulation . . . . 234--234
                      Anonymous   Recovery of Tin from Tin-Plate Scrap,
                                  Toluol and the Gas Industries, and more  240--242
                      Anonymous   Emigration After the War, Shipping
                                  Subway Cars a Thousand Miles on Their
                                  Own Wheels . . . . . . . . . . . . . . . 242--242

Scientific American
Volume 120, Number 11, March 15, 1919

                     H. E. Howe   Service of the Chemist . . . . . . . . . 252--252
                      Anonymous   Correspondence . . . . . . . . . . . . . 253--253
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 262--272
                      Anonymous   Notes and Queries  . . . . . . . . . . . 274--274
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 274--276
                      Anonymous   Relative Efficiency of Bridge and
                                  Tunnels, The International Institute of
                                  Agriculture, and more  . . . . . . . . . 248--249
            Reginald R. Belknap   The North Sea Mine Barrage --- I . . . . 250--251
               Irving A. Berndt   Industrial Democracy and Engineering . . 253--253
                   W. H. Ballou   Ticks as Carriers of Animal Disease  . . 254--255
                      Anonymous   Railway Terminal Problem at the Port of
                                  New York . . . . . . . . . . . . . . . . 256--257
                Lynn W. Meekins   World Markets for American Manufactures  258--258
                   C. H. Claudy   Future of British Flying . . . . . . . . 259--259
                      Anonymous   Electric Light and Egg Production,
                                  Steel-Grip Gloves  . . . . . . . . . . . 272--272

Scientific American
Volume 120, Number 12, March 22, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 285--285
                      Anonymous   Inventions New and Interesting . . . . . 294--294
                      Anonymous   Inventions: Recently Patented Inventions 298--298
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 308--308
                      Anonymous   To Solve the Battle-Cruiser Problem, The
                                  Scientific Insurgent, and more . . . . . 280--281
                    W. A. Drake   The Miami Conservancy Flood Prevention
                                  Plan . . . . . . . . . . . . . . . . . . 282--283
                Lorena S. Ellis   Fossils Found in Eastern Colorado  . . . 283--283
                   C. H. Claudy   Reconstruction in Europe --- V . . . . . 284--284
                  Howard Warren   How Will the Gasoline Engine Develop?    285--285
                   W. H. Ballou   The Vampire Bat  . . . . . . . . . . . . 286--287
                      H. Delano   U.S. Navy 7-inch Caterpillar Mount . . . 287--287
            Reginald R. Belknap   The North Sea Mine Barrage --- II  . . . 288--289
                      Anonymous   New York's Aeronautical Exposition . . . 290--290
             Jerome Lachenbruch   The Wireless Compass . . . . . . . . . . 291--291
                      Anonymous   Reconstruction Department  . . . . . . . 296--296
                      Anonymous   The Current Supplement . . . . . . . . . 299--299
                      Anonymous   The Aerial Police  . . . . . . . . . . . 307--307

Scientific American
Volume 120, Number 13, March 29, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 315--315
           Henry Norris Russell   The Heavens in April, 1919 . . . . . . . 320--320
                      Anonymous   Inventions New and Interesting . . . . . 322--322
                      Anonymous   Inventions: Recently Patented Inventions 324--327
                      Anonymous   A Towing Barge for the Huge Naval Planes 309--309
                      Anonymous   Hurley and the Shipping Situation, The
                                  Humanity of Poison Gas, and more . . . . 310--311
              J. Bernard Walker   A 121-Mile Gun . . . . . . . . . . . . . 312--313
               F. Honoré   Operating Room that Flies to the
                                  Battlefield  . . . . . . . . . . . . . . 313--313
                   C. H. Claudy   England's Aircraft Industry  . . . . . . 314--314
                      Anonymous   The Chemical Foundation  . . . . . . . . 315--315
                   W. H. Ballou   Return of the 17-Year Locust . . . . . . 316--317
                      Anonymous   United States Chemical Warfare Service
                                  --- I  . . . . . . . . . . . . . . . . . 318--319
                Lynn W. Meekins   World Markets for American Manufactures  321--321
                      Anonymous   Measuring Visible and Invisible Light,
                                  Air Screens for Furnace Workers  . . . . 327--328

Scientific American
Volume 120, Number 14, April 5, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 337--337
                      Anonymous   Inventions New and Interesting . . . . . 346--346
                      Anonymous   Inventions: Recently Patented Inventions 348--348
                C. Bond Harpole   The Roosevelt Deep Drainage Tunnel
                                  Finished . . . . . . . . . . . . . . . . 331--331
                      Anonymous   The History of the War, The
                                  Trans-Atlantic Flight, and more  . . . . 332--333
                      Anonymous   The Prevention and Cure of Hookworm  . . 334--334
              Brewster S. Beach   Hunting Submarines with a Sound Detector 335--335
                   C. H. Claudy   Reconstruction in Europe --- VI  . . . . 336--336
                   Eric A. Dime   Exploring by Airplane  . . . . . . . . . 337--337
                      Anonymous   America's Great Effort in Ordnance --- I 338--339
           Henderson B. Gregory   U.S.S. ``New Mexico''  . . . . . . . . . 340--343
                      Anonymous   Foreign Trade in Furniture . . . . . . . 354--354
                      Anonymous   Fuel from Household Waste, Storage of
                                  Coal Under Water, and more . . . . . . . 358--360

Scientific American
Volume 120, Number 15, April 12, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 369--369
                      Anonymous   Inventions New and Interesting . . . . . 377--377
                      Anonymous   Inventions: Recently Patented Inventions 380--380
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 388--388
                      Anonymous   The Biggest Car Dumper in the World  . . 363--363
                      Anonymous   American Ship-Operating Program, British
                                  and German Gunnery, and more . . . . . . 364--365
                      Anonymous   Is the Dirigible Outstripping the
                                  Airplane ? . . . . . . . . . . . . . . . 366--367
                   Eric A. Dime   A New British Port . . . . . . . . . . . 368--368
                      Anonymous   Signaling and Talking Through Space  . . 370--371
                      Anonymous   United States Chemical Warfare Service
                                  --- II . . . . . . . . . . . . . . . . . 372--373
                      Anonymous   Admiral Sims in the Team-Work for
                                  Victory  . . . . . . . . . . . . . . . . 374--374
                   C. H. Claudy   British Munitions  . . . . . . . . . . . 375--375
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 376--376
                      Anonymous   The Current Supplement . . . . . . . . . 382--382
                      Anonymous   Substitutes for Belting in Germany . . . 388--388

Scientific American
Volume 120, Number 16, April 19, 1919

                      Anonymous   The Motor-Driven Commercial Vehicle  . . 404--404
                     H. E. Howe   Service of the Chemist . . . . . . . . . 406--406
                      Anonymous   Inventions: Recently Patented Inventions 410--412
                      Anonymous   Notes and Queries  . . . . . . . . . . . 419--420
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 420--420
                      Anonymous   How Big is Our Merchant Fleet?, The
                                  Advent of Colloidal Fuel, and more . . . 392--393
                  Albert Prince   Floating Mines in the North Atlantic and
                                  Arctic Oceans  . . . . . . . . . . . . . 394--395
               F. Honoré   Locating Unexploded Shells on the
                                  Battlefields of France . . . . . . . . . 395--395
            John W. N. Sullivan   Sir William Crookes  . . . . . . . . . . 396--396
                   C. H. Claudy   The French Problem of Reconstruction ---
                                  I  . . . . . . . . . . . . . . . . . . . 397--397
                      Anonymous   Great Britain and France Decide to Build
                                  the Channel Tunnel . . . . . . . . . . . 398--398
                      Anonymous   The English Channel Tunnel . . . . . . . 399--399
                      Anonymous   Aerial Greyhounds of To-Morrow . . . . . 400--401
                Lynn W. Meekins   World Markets for American Manufactures  402--403
                      Anonymous   Measuring Evaporation at the Panama
                                  Canal, Peace Uses of Gas Masks, and more 403--403
                      Anonymous   The Current Supplement . . . . . . . . . 415--416
                      Anonymous   New Industrial Uses for X-Rays . . . . . 418--418

Scientific American
Volume 120, Number 17, April 26, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 429--429
                      Anonymous   Inventions New and Interesting . . . . . 438--438
                      Anonymous   Inventions: Recently Patented Inventions 440--440
                      Anonymous   Jellicoe on the Grand Fleet, The Revival
                                  of Amateur Wireless, and more  . . . . . 424--425
                   C. H. Claudy   An Airman's Story  . . . . . . . . . . . 426--426
                      Anonymous   Small Airplanes and the Trans-Atlantic
                                  Flight . . . . . . . . . . . . . . . . . 427--427
                 D. M. Reynolds   Emergency Employment Committee for
                                  Soldiers and Sailors . . . . . . . . . . 428--428
          H. Bannerman Phillips   Supplying the British Farmer with the
                                  Sinews of War  . . . . . . . . . . . . . 429--429
                     J. M. Bird   Weighing High Temperatures in an
                                  Electric Balance . . . . . . . . . . . . 430--431
                      Anonymous   America's Great Effort in Ordnance ---
                                  II . . . . . . . . . . . . . . . . . . . 432--435
                      Anonymous   The Crystal Structure of Ice . . . . . . 446--446

Scientific American
Volume 120, Number 18, May 3, 1919

           Henry Norris Russell   The Heavens in May, 1919 . . . . . . . . 466--467
                      Anonymous   Inventions New and Interesting . . . . . 468--469
                      Anonymous   Inventions: Recently Patented Inventions 470--470
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 476--476
                      Anonymous   Our Largest Newspaper Presses  . . . . . 451--451
                      Anonymous   Is Peace Unconstitutional?, Jellicoe at
                                  Jutland, and more  . . . . . . . . . . . 452--453
                  Hugh A. Smith   America's Optical Emancipation . . . . . 454--455
                   C. H. Claudy   The French Problem of Reconstruction ---
                                  II . . . . . . . . . . . . . . . . . . . 456--456
             Robert G. Skerrett   Increasing Visibility Through a
                                  Knowledge of Camouflage  . . . . . . . . 457--457
                      Anonymous   The Invention that Won the War . . . . . 458--459
                      Anonymous   Our Latest Dreadnought ``Idaho'' . . . . 460--461
                Lynn W. Meekins   World Markets for American Manufactures  464--464
                      Anonymous   Giant Monoplane Flying Boat --- Count
                                  Zeppelin's Last Production, Gluing
                                  Veneer-at Higher Moisture  . . . . . . . 475--475

Scientific American
Volume 120, Number 19, May 10, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 485--485
                      Anonymous   Inventions New and Interesting . . . . . 492--493
                      Anonymous   Inventions: Recently Patented Inventions 494--494
                      Anonymous   Our Navy's Bid for the Great
                                  Trans-Atlantic Flight  . . . . . . . . . 479--479
                      Anonymous   A Neglected Port, A Year of the Carnegie
                                  Institution, and more  . . . . . . . . . 480--481
                      Anonymous   The Tank Man's Story . . . . . . . . . . 482--482
                      Anonymous   Fossil Deposits of Nebraska  . . . . . . 483--483
                      Anonymous   Free as Air  . . . . . . . . . . . . . . 484--484
                     H. L. Wood   Shale Oil as a Business Proposition  . . 484--484
             Avis Gordon Vestal   Our Marked Highways  . . . . . . . . . . 486--487
                 Paul J. Haaren   The Seagull Flies  . . . . . . . . . . . 488--489
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 490--490
                      Anonymous   A Car-Loader that Automatically Weighs
                                  the Load . . . . . . . . . . . . . . . . 495--495

Scientific American
Volume 120, Number 2, January 11, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 27--27
                      Anonymous   Inventions New and Interesting . . . . . 34--34
                      Anonymous   Inventions: Recently Patented Inventions 36--36
                      Anonymous   Railroad Ferry Service Between England
                                  and France, The Effect of Altitude on
                                  the Eye, and more  . . . . . . . . . . . 21--23
         John Walker Harrington   Cibola Revealed  . . . . . . . . . . . . 24--25
          H. Bannerman-Phillips   Wartime Agriculture in Great Britain . . 26--26
                      Anonymous   Old Names for a New Navy . . . . . . . . 27--27
                      Anonymous   Weeding Out the Poisonous Fishes . . . . 28--29
                    M. Luckiesh   Pressure Marks on Photo Plates . . . . . 29--29
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 30--31
              J. Bernard Walker   Return of the American Fleet . . . . . . 32--33
                      Anonymous   Reconstruction . . . . . . . . . . . . . 38--38
                      Anonymous   The Crucial Week for the Green Employee  44--44

Scientific American
Volume 120, Number 20, May 17, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 509--509
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 516--516
                     H. E. Howe   Service of the Chemist . . . . . . . . . 518--520
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 532--532
             Robert G. Skerrett   The Pioneer of the Trans-Atlantic Liner  503--503
                      Anonymous   The Ship-Owners' Point of View, Phantom
                                  Limbs, and more  . . . . . . . . . . . . 504--505
                 Edgar J. Banks   The Future of the Archaeologist in
                                  Mesopotamia  . . . . . . . . . . . . . . 506--506
              S. Leonard Bastin   Plants that Make Stones  . . . . . . . . 507--507
               Horace E. Thomas   Mobilizing a Lady Bug Army to Fight the
                                  Aphids . . . . . . . . . . . . . . . . . 507--507
                   C. H. Claudy   The French Problem of Reconstruction ---
                                  III  . . . . . . . . . . . . . . . . . . 508--508
                    M. Luckiesh   Light and Progress . . . . . . . . . . . 509--509
                      Anonymous   Listening for the Enemy  . . . . . . . . 510--512
               Benjamin S. Foss   A ``Super-Charged'' Airplane Engine,
                                  Pulling the Trigger by Fluid Pressure,
                                  and more . . . . . . . . . . . . . . . . 512--513
                Lynn W. Meekins   World Markets for American Manufactures  514--515
                      Anonymous   The Castor Bean and its Many Uses  . . . 528--528
             Robert D. McCreery   The Theory of Electro Culture  . . . . . 530--530

Scientific American
Volume 120, Number 21, May 24, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 541--541
                      Anonymous   Inventions New and Interesting . . . . . 552--552
                      Anonymous   Inventions: Recently Patented Inventions 554--554
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 564--564
                      Anonymous   From War to Work, Crop Growing on
                                  Contract, and more . . . . . . . . . . . 536--537
                      Anonymous   Cleaning Up After the Submarine War  . . 538--539
                      Anonymous   Reconstruction in the United States  . . 540--540
                      Anonymous   The Case for Water Power . . . . . . . . 541--541
                  John B. Huber   Making Over the Disabled Doughboy  . . . 542--543
                   C. H. Claudy   Photographing the War  . . . . . . . . . 544--545
                      Anonymous   Better Packages and how to Know Them . . 546--548
                   F. R. Watson   A Megaphone of Novel Design  . . . . . . 548--548
                      Anonymous   Our Trans-Atlantic Dirigible Entry . . . 549--549
                      Anonymous   Recent Patent Decisions  . . . . . . . . 560--560
                      Anonymous   Use of Molybdenum in Making Steel  . . . 563--563

Scientific American
Volume 120, Number 22, May 31, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 573--573
           Henry Norris Russell   The Heavens in June, 1919  . . . . . . . 580--580
                      Anonymous   Inventions New and Interesting . . . . . 584--584
                      Anonymous   Inventions: Recently Patented Inventions 586--586
                      Anonymous   The Park Place Subway Station Escalators 567--567
                      Anonymous   To the Mayor of New York, Boy Scout
                                  Week, and more . . . . . . . . . . . . . 568--569
                   W. H. Ballou   A Question of Identity . . . . . . . . . 570--571
               Dudley T. Fisher   Patents and Profits  . . . . . . . . . . 572--572
               Robert W. Neeser   French Naval Policy and the Lessons of
                                  the Great War  . . . . . . . . . . . . . 573--573
                      Anonymous   Oddities of the Trans-Atlantic Flight    574--575
             Edward C. Crossman   A Shooting University  . . . . . . . . . 576--576
                   C. H. Claudy   The French Problem of Reconstruction ---
                                  IV . . . . . . . . . . . . . . . . . . . 577--577
             Robert G. Skerrett   Testing Physical Fitness with the Camera 578--579
                      Anonymous   A Stethoscope for the Earth  . . . . . . 581--581
                      Anonymous   The Current Supplement . . . . . . . . . 591--592
                      Anonymous   Aerial Conductors of Aluminum  . . . . . 592--592

Scientific American
Volume 120, Number 23, June 7, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 601--601
                      Anonymous   Inventions New and Interesting . . . . . 610--616
                      Anonymous   Lessons of the Trans-Atlantic Flight,
                                  The Naughtiness of Nations, and more . . 596--597
                   C. H. Claudy   A United States Port in France . . . . . 598--599
                      Anonymous   Much Wheat --- Little Corn?  . . . . . . 600--600
                   Eric A. Dime   American ``Mystery'' Ships . . . . . . . 600--601
               J. Hammond Smith   When Freight Cars Bump . . . . . . . . . 602--602
                  John G. Holme   Stefansson in the Arctic . . . . . . . . 603--603
                      Anonymous   America Flies the Atlantic . . . . . . . 604--605
                Lynn W. Meekins   World Markets for American Manufactures  606--606
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 607--609
             Charles Alma Byers   Bean Harvesting Attachment for Farm
                                  Tractors . . . . . . . . . . . . . . . . 607--607

Scientific American
Volume 120, Number 24, June 14, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 625--625
                Cozymine Wilson   Inventions New and Interesting . . . . . 634--635
                      Anonymous   Inventions: Recently Patented Inventions 636--646
                      Anonymous   Three-Year Naval Program Abandoned, Our
                                  Links with the Past, and more  . . . . . 620--621
                      Anonymous   The Carrier of Malaria . . . . . . . . . 622--623
                      Anonymous   With Trees for Ears  . . . . . . . . . . 624--624
                   C. H. Claudy   Invention as the Foundation of the
                                  Nation's Wealth  . . . . . . . . . . . . 625--625
             Avis Gordon Vestal   For the Motor Tourist  . . . . . . . . . 626--628
                  Jacques Boyer   The Wireless Incendiary  . . . . . . . . 628--628
               Ellwood Atherton   Southern California's Burning Canyon . . 629--629
                      Anonymous   The Seaplane Carrier ``Argus'' . . . . . 630--633
                 Arthur L. Dahl   Valuable By-Products from Gold Dredging  631--631
                  Edward Thomas   The United States Patent Office as a
                                  National Asset, Rabies and the Public
                                  Health Problem, and more . . . . . . . . 642--644

Scientific American
Volume 120, Number 25, June 21, 1919

                     H. E. Howe   Service of the Chemist . . . . . . . . . 660--661
                      Anonymous   Inventions: Recently Patented Inventions 664--674
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 676--676
                      Anonymous   Monetary Cost of the War . . . . . . . . 647--647
                      Anonymous   Always On Its Toes, Think Nationally,
                                  and more . . . . . . . . . . . . . . . . 648--649
                     E. F. Cone   Steel Wheels by a New Process  . . . . . 650--651
                   David McFall   The Friendly War After the War . . . . . 652--652
                   C. H. Claudy   Science in the War . . . . . . . . . . . 653--653
                      Anonymous   New Ships of the British Navy  . . . . . 654--655
                      Anonymous   The Non-Stop Trans-Atlantic Flight . . . 656--657
               Albert A. Pashby   A Better Searchlight Unit  . . . . . . . 657--657
                      Anonymous   The American Precision Block . . . . . . 658--658
                      Anonymous   One Hundred Thousand Horse-Power Steam
                                  Turbine  . . . . . . . . . . . . . . . . 659--659
           Major Victor W. Page   The Motor-Driven Commercial Vehicle  . . 662--663
          William M. Ivins, Jr.   Ornament in Old Prints and Drawings  . . 673--674

Scientific American
Volume 120, Number 26, June 28, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 685--685
           Henry Norris Russell   The Heavens in July, 1919  . . . . . . . 692--692
                      Anonymous   Inventions New and Interesting . . . . . 693--693
                      Anonymous   Inventions: Recently Patented Inventions 696--696
                      Anonymous   Index of Inventions: Index . . . . . . . 702--702
                      Anonymous   Developing the High Speed Destroyer  . . 679--679
                      Anonymous   Lunch in America --- Breakfast in
                                  Europe, We Should Hasten Battle-Cruisers
                                  Construction, and more . . . . . . . . . 680--681
                      Anonymous   Thirty Million Years Ago . . . . . . . . 682--683
                      Anonymous   How the House Fly Takes Hold . . . . . . 683--683
          H. Bannerman-Phillips   British Textile Industries as Affected
                                  by the War . . . . . . . . . . . . . . . 684--684
                      Anonymous   Why does a Crankcase Breathe?  . . . . . 685--685
               Robert W. Neeser   War-Time Construction in the French
                                  Naval Arsenals . . . . . . . . . . . . . 686--686
                     Hu Maxwell   Lake Michigan's Encroachment on its
                                  Coast  . . . . . . . . . . . . . . . . . 687--687
          Austin C. Lescarboura   Amateurs in Name Only  . . . . . . . . . 688--689
             Charles Alma Byers   Mud Geysers at Salton Sea, New
                                  Lead-Burning Transformer for Storage
                                  Battery Work, and more . . . . . . . . . 690--691
                      Anonymous   Germany's Aircraft Experimental Station,
                                  Subterranean Noises in Australia . . . . 703--703

Scientific American
Volume 120, Number 3, January 18, 1919

                     H. E. Howe   Service of the Chemist . . . . . . . . . 58--59
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 60--60
                      Anonymous   An Ingenious Irrigation Scheme, Forest
                                  Fires of Spontaneous Origin, and more    47--49
                      Anonymous   Getting More Messages Over Our Wires . . 50--50
               Howard C. Kegley   What Machinery is doing for the Walnut
                                  Industry . . . . . . . . . . . . . . . . 51--51
                      Anonymous   Battleship Strength of the Five Leading
                                  Naval Powers . . . . . . . . . . . . . . 52--53
                      Anonymous   Guns for the Fighting Front  . . . . . . 54--55
                      Anonymous   Fitting the Shoe to the Soldier  . . . . 56--57
                      Anonymous   Deterioration in Ultra-Violet Radiation
                                  of Mercury Lamps . . . . . . . . . . . . 64--64

Scientific American
Volume 120, Number 4, January 25, 1919

                      Anonymous   Inventions New and Interesting . . . . . 80--80
                      Anonymous   Submarine Range-Finding by Means of
                                  Reflected Sound Waves  . . . . . . . . . 67--67
                      Anonymous   Port and Harbor Facilities, Electric
                                  Waves From Ocean Tides, and more . . . . 68--69
                  LeRoy Jeffers   The Voice of the Sea . . . . . . . . . . 70--71
                      Anonymous   Curved or ``S'' Courses  . . . . . . . . 72--73
               Ladis\las D'Orcy   The Final Solution of the Airship
                                  Problem  . . . . . . . . . . . . . . . . 73--73
                      Anonymous   Battleplane Armament . . . . . . . . . . 74--75
                    M. Luckiesh   The Principles of Camouflage --- I . . . 76--76
                      Anonymous   Decoy Ships for Submarines . . . . . . . 77--77
                Lynn W. Meekins   World Markets for American Manufactures  78--79
                  Jacques Boyer   Weighing the Temperature for Blind Folk,
                                  A Stretcher that Gives up its Load
                                  Painlessly . . . . . . . . . . . . . . . 80--80
                      Anonymous   The Sahara Hydrological Station  . . . . 88--88

Scientific American
Volume 120, Number 5, February 1, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 97--97
           Henry Norris Russell   The Heavens in February, 1919  . . . . . 102--102
                      Anonymous   Inventions New and Interesting . . . . . 103--108
                      Anonymous   The Paravane --- a Steel Shark Which
                                  Protects Vessels in Mine-Infested Waters 91--91
                      Anonymous   A World in the Re-making, The Influenza
                                  Mystery Deepens, and more  . . . . . . . 92--93
                   C. H. Clandy   The British Navy on the Job  . . . . . . 94--95
                      Anonymous   Battery Versus Magneto on the Airplane   96--96
               Ladis\las d'Orcy   Airship Versus Airplane  . . . . . . . . 98--99
              William B. Ashley   Harnessing Boy-Power . . . . . . . . . . 100--101
                      Anonymous   Our New Book Catalogue, Good Brick from
                                  Slags  . . . . . . . . . . . . . . . . . 108--108

Scientific American
Volume 120, Number 6, February 8, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 117--117
                      Anonymous   Inventions: Inventions New and
                                  Interesting  . . . . . . . . . . . . . . 126--130
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 132--132
                      Anonymous   Launching an Airplane from an Airship,
                                  Dynamiting Devastated Orchards in
                                  France, and more . . . . . . . . . . . . 111--113
                      Anonymous   How Uncle Sam has Created an Army of
                                  Athletes . . . . . . . . . . . . . . . . 114--115
                    M. Luckiesh   The Principles of Camouflage --- II  . . 116--116
                      Anonymous   Worlds of Four Dimensions  . . . . . . . 117--117
                   W. H. Ballou   The Instability of American Airplanes    118--119
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 122--122
                   C. L. McCrea   Battleship Guns on the Western Front . . 123--123
                Lynn W. Meekins   World Markets for American Manufactures  124--125

Scientific American
Volume 120, Number 7, February 15, 1919

                     H. E. Howe   Service of the Chemist . . . . . . . . . 140--140
                      Anonymous   The Motor-Driven Commercial Vehicle  . . 148--148
                      Anonymous   Inventions: Recently Patented Inventions 152--152
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 160--160
                      Anonymous   The Peace Conference and the Submarine,
                                  Public Interest in Automobiles, and more 136--137
                      Anonymous   France's Rôle in the World War  . . . . . 138--139
                   C. H. Claudy   British Ideals of Reconstruction . . . . 141--141
             Charles A. Mercier   The Electrification of Seeds . . . . . . 142--143
                  LeRoy Jeffers   Zion Canyon and the Colob Plateau  . . . 144--146
                      Anonymous   Reconstruction Department  . . . . . . . 150--158

Scientific American
Volume 120, Number 8, February 22, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 169--169
                      Anonymous   Inventions New and Interesting . . . . . 176--176
                      Anonymous   Inventions: Recently Patented Inventions 178--178
                      Anonymous   Inventions: Recently Patented Inventions 186--186
                      Anonymous   Notes and Queries  . . . . . . . . . . . 190--190
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 192--192
                      Anonymous   Huge Bridge to Facilitate Coal Handling,
                                  Oil Pipe Line Across Scotland, and more  163--165
                   C. H. Claudy   Reconstruction in Europe --- III . . . . 166--167
                    M. Luckiesh   The Principles of Camouflage --- III . . 168--168
                      Anonymous   The German Art of Make Believe . . . . . 169--169
                      Anonymous   The World's Coal Supply  . . . . . . . . 170--171
                      Anonymous   Human Reconstruction . . . . . . . . . . 172--173
                Lynn W. Meekins   World Markets for American Manufactures  174--175
                      Anonymous   Making Two Destroyers Into One . . . . . 175--175
                    P. A. Vaile   The Mystery of the Boomerang . . . . . . 175--175
                      Anonymous   Isaac Hill Bryant, The Current
                                  Supplement, and more . . . . . . . . . . 184--186
                      Anonymous   The Economic Effect of the Loss of
                                  Alsace--Lorraine . . . . . . . . . . . . 188--188

Scientific American
Volume 120, Number 9, March 1, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 201--201
                      Anonymous   Inventions New and Interesting . . . . . 208--208
                      Anonymous   Inventions: Recently Patented Inventions 210--210
                      Anonymous   Derelict Mines --- a Peace Peril, The
                                  Hudson River Tunnel, and more  . . . . . 196--197
                   C. H. Claudy   The Submarine Situation  . . . . . . . . 198--199
                 Wade W. Oliver   Influenza --- The Sphinx of Diseases . . 200--200
       Frank B. Gilbrethand and   
                 L. M. Gilbreth   Industrial Cooperation as a Factor in
                                  Reconstruction . . . . . . . . . . . . . 200--200
                      Anonymous   Airplanes for the Transatlantic Flight   202--202
                      Anonymous   Cost of the New Three-Year Naval Program 204--205
                      Anonymous   Speeding Up the Drier  . . . . . . . . . 206--207
                      Anonymous   The Current Supplement . . . . . . . . . 212--212


Scientific American
Volume 121, Number 1, July 5, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 9--9
                      Anonymous   Inventions New and Interesting . . . . . 16--16
                      Anonymous   Inventions: Recently Patented Inventions 18--18
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 24--24
                      Anonymous   Peace, Congress and Our Naval Air
                                  Service, and more  . . . . . . . . . . . 4--5
                      Anonymous   Phonograph Needles of Bamboo . . . . . . 6--7
              Frederic Dannerth   Some American Substitutes for Rubber . . 8--8
                      Anonymous   Great Britain's Giant Bombing Plane  . . 10--10
                  W. F. Denning   Great Changes in the Planet Jupiter, How
                                  the Meteorologist Aids the Aviator . . . 11--11
                Alfred J. Lotka   Our High Prices --- Have they Come to
                                  Stay?  . . . . . . . . . . . . . . . . . 12--13
                    C. E. Gapen   Taking the Plod Out of Plowing, The
                                  Natural Triangulation Station, and more  13--15
                      Anonymous   Allied Nations Scientific Academies to
                                  those of the Central Powers  . . . . . . 19--19
                      Anonymous   Water Resistant Glues, Variations of
                                  Length Caused by Magnetization . . . . . 23--23

Scientific American
Volume 121, Number 10, September 6, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 229--229
                      Anonymous   Inventions New and Interesting . . . . . 236--236
                      Anonymous   Inventions: Recently Patented Inventions 238--238
                      Anonymous   Envelope Problems of the Dirigible
                                  Constructor, Shasta Strawberry Vines,
                                  and more . . . . . . . . . . . . . . . . 223--225
                 Rozel Gotthold   Handling Grain by the Boat-Load  . . . . 226--226
                      Anonymous   From the Frozen Arctic to the Polisher's
                                  Bench  . . . . . . . . . . . . . . . . . 227--227
                   C. H. Claudy   Merchant Marine Progress . . . . . . . . 228--228
                    D. F. Jones   Hybrid Vigor and its Meaning . . . . . . 230--231
                      Anonymous   Our Technical Achievements in the Great
                                  War --- VI . . . . . . . . . . . . . . . 232--233
                P. H. Boucheron   Naval Radio Remote Control . . . . . . . 234--235

Scientific American
Volume 121, Number 11, September 13, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 253--253
                      Anonymous   Inventions New and Interesting . . . . . 261--261
                      Anonymous   Inventions: Recently Patented Inventions 264--264
                      Anonymous   The Sense of Discipline, Who Shall Own
                                  the Cars?, and more  . . . . . . . . . . 248--249
              Herbert T. Walker   Rolling Stock of 1919  . . . . . . . . . 250--251
                   C. H. Claudy   The Romance of Invention --- II  . . . . 252--252
                      Anonymous   New Worlds to Conquer  . . . . . . . . . 254--255
                      Anonymous   Our Technical Achievements in the Great
                                  War --- VII  . . . . . . . . . . . . . . 256--256
                   F. Rowlinson   Salvage by Floating Towers of Concrete   257--257
              William T. Tilden   The Science of Tennis  . . . . . . . . . 258--260
                      Anonymous   Sweet Potatoes the Year Round, Varnished
                                  Raisins  . . . . . . . . . . . . . . . . 272--272

Scientific American
Volume 121, Number 12, September 20, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 281--281
                     H. E. Howe   Service of the Chemist . . . . . . . . . 286--286
           Major Victor W. Page   The Motor-Driven Commercial Vehicle  . . 287--287
                      Anonymous   Reducing the Fire Hazard in the
                                  Airplane, American Iron in British
                                  Steel, and more  . . . . . . . . . . . . 275--277
               John L. Von Blon   Jack Frost in the Orange Country . . . . 278--279
                    M. Luckiesh   High-Lights of Air-Travel  . . . . . . . 280--280
             Robert G. Skerrett   Secrets of Antiquity . . . . . . . . . . 282--282
                      Anonymous   The Self-Sinking Concrete Pile . . . . . 283--283
                      Anonymous   Our Technical Achievements in the Great
                                  War --- VIII . . . . . . . . . . . . . . 284--284
                 Oliver Johnson   Making the Desert Bloom in Australia . . 285--285
            William T. Hornaday   The Naturalist's Corner  . . . . . . . . 290--290
                      Anonymous   Features of the Still Engine, Liquid
                                  Oxygen, and more . . . . . . . . . . . . 298--300

Scientific American
Volume 121, Number 13, September 27, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 309--309
           Henry Norris Russell   The Heavens in October 1919  . . . . . . 314--314
                      Anonymous   Inventions New and Interesting . . . . . 318--318
                      Anonymous   Inventions: Recently Patented Inventions 320--320
                      Anonymous   Notes and Queries  . . . . . . . . . . . 332--332
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 332--332
                      Anonymous   The Revival of the American Monitor,
                                  Iron Ores Formed By Bacteria . . . . . . 303--305
                  H. T. Dobbins   Chaining the Missouri  . . . . . . . . . 306--306
                    H. C. Hardy   The Desert Sign Post . . . . . . . . . . 307--307
                 C. E. Knoeppel   The Stop-Watch in Industry . . . . . . . 308--308
                      Anonymous   Research in Refractories . . . . . . . . 309--309
                 R. G. Skerrett   The Lesson of the Caldwell Range . . . . 310--311
                      Anonymous   Our Technical Achievements in the Great
                                  War --- Concluding Chapter . . . . . . . 312--312
               W. F. Sutherland   Asbestos Mines of Quebec . . . . . . . . 315--316
                      Anonymous   Sells Fresh Fruit Juice, What Are Naval
                                  Stores?  . . . . . . . . . . . . . . . . 327--328
                      Anonymous   The Balanced Ration on the Poultry Farm,
                                  The Current Supplement . . . . . . . . . 330--330

Scientific American
Volume 121, Number 14, October 4, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 341--341
                      Anonymous   Inventions New and Interesting . . . . . 348--350
                      Anonymous   What Walking Comes to, Pacific Ocean
                                  Water in Domestic use, and more  . . . . 335--337
            William T. Hornaday   The World's Horned Heads . . . . . . . . 338--339
                   C. H. Claudy   The Romance of Invention --- III . . . . 340--340
                      Anonymous   The Sea Sled . . . . . . . . . . . . . . 342--342
               John L. Von Blon   Red Rock Canyon  . . . . . . . . . . . . 344--344
                      Anonymous   X-Ray Photographs of Plants and their
                                  Parts, Condition of the Port of Ostend,
                                  and more . . . . . . . . . . . . . . . . 354--356


Scientific American
Volume 125, Number 15, October 11, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 365--365
                      Anonymous   Inventions New and Interesting . . . . . 374--374
                Carl F. Propson   Filming a Lens in Action, Russia's
                                  Industrial Standing, and more  . . . . . 359--361
            Harold J. Shepstone   Coal and Iron from the Arctic  . . . . . 362--363
           Charles F. Kettering   Studying the Knocks  . . . . . . . . . . 364--364
                      Anonymous   Freaks of War Wireless . . . . . . . . . 365--365
                   C. H. Claudy   Munitions of Peace . . . . . . . . . . . 366--367
                Lee S. Crandall   The Pheasants and their Book . . . . . . 367--367
                Walter J. Henry   A Loop of Wire . . . . . . . . . . . . . 368--372


Scientific American
Volume 121, Number 16, October 18, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 389--389
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 395--395
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 412--412
                      Anonymous   Nauen --- Germany's Wireless Voice,
                                  Manufacturer's Tools in Japan, and more  383--385
                 J. F. Springer   Ironing Out a River Bottom . . . . . . . 386--387
               J. Paul Heritage   Some Industrial Uses of the Potato . . . 388--388
                      Anonymous   The Modern Terminal  . . . . . . . . . . 390--391
                       K. Knipe   The World of Neglected Dimensions  . . . 392--392
                      Anonymous   Christmas Made in America  . . . . . . . 393--393
                      Anonymous   Electrically-Heated Steam-Boilers, A
                                  Continuous Rail at Cross-Overs, and more 394--394
                Lynn W. Meekins   World Markets for American Manufactures  400--400
                      Anonymous   Salvaging of Metal on Battle Field,
                                  Agricultural Reconstruction in France    404--404
                      Anonymous   Latest Patent Decisions  . . . . . . . . 410--411

Scientific American
Volume 121, Number 17, October 25, 1919

                      Anonymous   Inventions New and Interesting . . . . . 424--424
                      Anonymous   A Word about this Issue  . . . . . . . . 415--417
                      Anonymous   A Fresh Deal for the Electric Car  . . . 418--419
                      Anonymous   Preserving without Sugar . . . . . . . . 420--420
                      Anonymous   The Fusion of Tungsten . . . . . . . . . 420--420
                      Anonymous   The Gas Mask in Industry . . . . . . . . 421--421
                 Arthur Hollick   The Story of the Bartram Oak . . . . . . 422--423
                      Anonymous   A Strange Trick Explained  . . . . . . . 436--436

Scientific American
Volume 121, Number 18, November 1, 1919

           Henry Norris Russell   The Heavens in November, 1919  . . . . . 444--445
                      Anonymous   Setting a Dry-Dock to Work While under
                                  Construction, Heat Treatment in Gun
                                  Erosion, and more  . . . . . . . . . . . 439--441
                   C. H. Claudy   The Romance of Invention --- IV  . . . . 442--443

Scientific American
Volume 121, Number 19, November 8, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 461--461
                      Anonymous   Inventions New and Interesting . . . . . 464--464
                      Anonymous   The One-Man Torpedo Boat --- a New Type,
                                  Small, Fast and Difficult to Detect, Am
                                  I my Brother's Keeper?, and more . . . . 455--457
                 R. G. Skerrett   The Silkworm's Formidable Competitor . . 458--459
          C. Geoffrey Nicholson   The Microscopic Analysis of Iron and
                                  Steel  . . . . . . . . . . . . . . . . . 460--460
                      Anonymous   Wood Alcohol -- A New Industrial Monarch 462--463

Scientific American
Volume 121, Number 2, July 12, 1919

                      Anonymous   Inventions New and Interesting . . . . . 42--42
                      Anonymous   The Revival of the Torpedo Boat  . . . . 27--27
                      Anonymous   The City Hall and its Setting, Books For
                                  Bullets, and more  . . . . . . . . . . . 28--29
                 R. S. Skerrett   For Seed or for Fiber? . . . . . . . . . 30--31
                      Anonymous   Parachutes for Airplanes . . . . . . . . 32--33
              Julian S. Hatcher   Powders  . . . . . . . . . . . . . . . . 33--33
                 J. F. Springer   Bunkering Big Ships, The House of the
                                  Giant Dirigible R-33, and more . . . . . 34--35
               Edwin J. Prindle   The Farmer and the Patent System . . . . 36--36
                    C. G. Abbot   Rotating Projectiles from Smooth-Bore
                                  Guns, Smothering a Fire Beneath a
                                  Combustible Blanket, and more  . . . . . 38--38
                Lynn W. Meekins   World Markets for American Manufactures  40--40
                      Anonymous   The Current Supplement . . . . . . . . . 44--44
                      Anonymous   The Action of Iron Rust in Contact with
                                  Other Metals and Alloys  . . . . . . . . 48--48

Scientific American
Volume 121, Number 20, November 15, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 483--483
                     H. E. Howe   Service of the Chemist . . . . . . . . . 486--486
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 487--487
                      Anonymous   The New Welland Canal, The Strike
                                  Problem, and more  . . . . . . . . . . . 477--479
               W. F. Sutherland   The Story of Nickel  . . . . . . . . . . 480--481
           Genevieve Grandcourt   Eternal Youth as a Scientific Theory . . 482--482
          Raymond Francis Yates   The Shop Lubricating Problem . . . . . . 484--485

Scientific American
Volume 121, Number 21, November 22, 1919

                      Anonymous   Why are Lunar Eclipses Visible?, Alcohol
                                  presents a Substitute for Acetylene, and
                                  more . . . . . . . . . . . . . . . . . . 505--507
                 Victor W. Page   What the War Taught us About Motor
                                  Trucks . . . . . . . . . . . . . . . . . 508--509
                      Anonymous   The Draft-Horse Situation  . . . . . . . 510--510
                      Anonymous   Americas Automobile Industry . . . . . . 511--511
                Alfred J. Lotka   The High Price of Milk . . . . . . . . . 512--513
             Harry Wilkin Perry   The Gasoline Locomotive of the Highways  514--515
                   H. A. Crafts   Plowing Deeper and Deeper  . . . . . . . 516--518

Scientific American
Volume 121, Number 22, November 29, 1919

           Henry Norris Russell   The Heavens in December, 1919  . . . . . 537--537
                      Anonymous   Inventions New and Interesting . . . . . 538--538
                      Anonymous   Fiction and Fact About Germany . . . . . 530--531
                 Rozel Gotthold   Concrete Construction on the Mississippi
                                  Sands  . . . . . . . . . . . . . . . . . 532--533
       William Washburn Nutting   A Seventy-Mile Hydrodrome  . . . . . . . 534--535
                      Anonymous   Shamrock IV  . . . . . . . . . . . . . . 536--536

Scientific American
Volume 121, Number 23, December 6, 1919

                 H. E. Howe and   
          Chemical Engineer and   
                   Conducted by   Service of the Chemist . . . . . . . . . 554--554
                      Anonymous   Inventions New and Interesting . . . . . 562--562
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 570--570
                      Anonymous   How We Get Ourselves Killed  . . . . . . 549--549
                      Anonymous   Hysteria among the Admirals, The History
                                  of a Great Invention, and more . . . . . 550--551
                      Anonymous   Electric vs. Steam --- a Tug of War  . . 552--552
          Floyd Hamilton Hazard   Houses by the Bucketful  . . . . . . . . 553--553
                      F. Honore   The Secret Telephone, Are Sound Waves
                                  ever Visible?  . . . . . . . . . . . . . 555--555
                      Anonymous   Dismantling the Fortifications of
                                  Heligoland . . . . . . . . . . . . . . . 556--557
                 Theodore Ruete   Wealth from Waste  . . . . . . . . . . . 557--557
                      Anonymous   Wind Tunnels and Airplane Designs  . . . 558--559
                      Anonymous   The British Battle-Cruiser ``Renown''    560--560
                      Anonymous   Fertilizing Oyster Beds, Fuel Oil in
                                  Sumatra, and more  . . . . . . . . . . . 564--570

Scientific American
Volume 121, Number 24, December 13, 1919

                      Anonymous   Inventions New and Interesting . . . . . 586--586
                      Anonymous   Inventions: Recently Patented Inventions 588--588
                   W. F. Wilcox   First Underground Mining Mill in America 573--573
                      Anonymous   Around the World in Three Days?, The
                                  Uses of The Navy, and more . . . . . . . 574--575
             Robert G. Skerrett   Again the Helicopter?  . . . . . . . . . 576--577
       Sir George Craydon Marks   Post-Bellum Britain and the Inventor . . 578--579
                   C. H. Claudy   The Romance of Invention --- V . . . . . 580--580
                      Anonymous   With Typewriter and Offset Press . . . . 581--581
                      Anonymous   Signposts of the Sea . . . . . . . . . . 582--583
                      Anonymous   Bombardments from the Skies  . . . . . . 584--585
                      Anonymous   Why Horses are Shod  . . . . . . . . . . 598--598

Scientific American
Volume 121, Number 25, December 20, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 607--607
                 H. E. Howe and   
              Chemical Engineer   Service of the Chemist . . . . . . . . . 611--612
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 613--613
                      Anonymous   Inventions: Recently Patented Inventions 614--614
                      Anonymous   How Far Away is the Moon?, The New
                                  \booktitleScientific American Monthly,
                                  and more . . . . . . . . . . . . . . . . 601--603
             Robert G. Skerrett   A Solid Fuel in Liquid Form  . . . . . . 604--605
                     H. E. Howe   Research and Cotton  . . . . . . . . . . 606--606
                 J. F. Springer   The Gilboa Dam . . . . . . . . . . . . . 608--609
                      Anonymous   The Thirty-One Knot British Battleship
                                  ``Hood'' . . . . . . . . . . . . . . . . 610--610
                      Anonymous   Swinging a 250-Ton Load, New British
                                  Trade-Mark Laws  . . . . . . . . . . . . 620--620
                      Anonymous   Is Germany Bluffing?, Germination of
                                  Grains, and more . . . . . . . . . . . . 626--626

Scientific American
Volume 121, Number 26, December 27, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 635--635
           Henry Norris Russell   The Heavens in January, 1920 . . . . . . 640--640
                      Anonymous   Inventions New and Interesting . . . . . 641--641
                      Anonymous   Inventions: Recently Patented Inventions 642--642
                      Anonymous   Index of Inventions: Index . . . . . . . 652--652
                      Anonymous   Automobiles and People, Our Navy First
                                  Officially to Propose Reduction of
                                  Armaments, and more  . . . . . . . . . . 629--631
                 Arthur L. Dahl   Food versus Feed . . . . . . . . . . . . 632--632
            William Butterfield   Nature's Geometric Workmen . . . . . . . 633--633
                 Victor W. Page   How to get the most out of a Motor Truck 634--634
                Marcus Benjamin   The Incoming President of the A.A.A.S.   635--635
                      Anonymous   The Tendency of Truck Design for 1920    636--637
                 J. F. Springer   Houses Built on Sand . . . . . . . . . . 638--639

Scientific American
Volume 121, Number 3, July 19, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 57--57
                 H. E. Howe and   
              Chemical Engineer   Service of the Chemist . . . . . . . . . 60--61
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 64--64
                      Anonymous   Effect of the War on the World's
                                  Shipping . . . . . . . . . . . . . . . . 51--51
                      Anonymous   The Airship of the Near Future, The
                                  Romance of Invention, and more . . . . . 52--53
           James L. Breese, Jr.   Precautions that Spelled Success . . . . 55--55
                   C. H. Claudy   The Romance of Invention --- I . . . . . 56--56
                      Anonymous   The Trans-Atlantic Dirigible . . . . . . 58--59
                      Anonymous   A Millionth of an Inch . . . . . . . . . 62--63
                      Anonymous   The Current Supplement . . . . . . . . . 66--66
                      Anonymous   New Process for Cleaning Locomotives,
                                  The Percussion Cap, and more . . . . . . 74--76
               Henry A. Gardner   Rare Elements as Paint Pigments  . . . . 76--76

Scientific American
Volume 121, Number 4, July 26, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 85--85
                      Anonymous   Inventions New and Interesting . . . . . 92--92
                      Anonymous   Inventions: Recently Patented Inventions 94--94
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 100--100
                      Anonymous   Repairing a Buckled Ship, Tinfoil in
                                  Condensers, and more . . . . . . . . . . 79--81
               John L. Von Blon   Binder Twine from the Desert . . . . . . 82--83
               Alexander McAdie   The Freedom of the Skies . . . . . . . . 84--84
                      Anonymous   The First Round-Trip Trans-Atlantic
                                  Airship  . . . . . . . . . . . . . . . . 86--86
       James L. Breese, Jr. and   
              Lt. U. S. N. R. F   Why Hawker Failed, Getting Away from
                                  Getting Under, and more  . . . . . . . . 87--87
                Herbert T. Wade   Keeping the Big Guns at the Front
                                  Effective  . . . . . . . . . . . . . . . 88--89
              Harry C. Ramsower   Mechanical Equipment of the Farm . . . . 90--91
                   C. L. McCrea   A Naval Land Gun that Can Fire from the
                                  Track at a Moment's Notice . . . . . . . 91--91
                      Anonymous   Does Plate Glass Fade?, How do Rats
                                  Carry Eggs?  . . . . . . . . . . . . . . 99--99

Scientific American
Volume 121, Number 5, August 2, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 109--109
                      Anonymous   Inventions New and Interesting . . . . . 116--116
                      Anonymous   Inventions: Recently Patented Inventions 118--118
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 124--124
                      Anonymous   A Terminal on the Jersey Flats . . . . . 103--103
                      Anonymous   Helium or Hydrogen, The First
                                  Dreadnought Design, and more . . . . . . 104--105
          George W. Sutton, Jr.   The Tenth Anniversary of the World's
                                  Military Aviation  . . . . . . . . . . . 106--107
             Robert G. Skerrett   Fabricated Lumber and the Housing
                                  Problem  . . . . . . . . . . . . . . . . 107--107
               R. D. La Guardia   Who shall do the Work? . . . . . . . . . 108--108
                 Thomas W. Bibb   Burning the Profits  . . . . . . . . . . 110--111
                      Anonymous   Our Technical Achievements in the Great
                                  War --- I  . . . . . . . . . . . . . . . 112--113
                  H. T. Dobbins   A Tornado that Tied itself in a Knot . . 114--114
               Frederick Slocum   The Craters of the Moon  . . . . . . . . 114--114
              William L. Symons   The Trade-Mark ``Liberty'' Registered by
                                  the United States  . . . . . . . . . . . 116--116
                      Anonymous   Rare Metal from Pyrites Flue Dust, A New
                                  Process for the Manufacture and
                                  Purification of Peroxide, and more . . . 121--123

Scientific American
Volume 121, Number 6, August 9, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 133--133
           Henry Norris Russell   The Heavens in August 1919 . . . . . . . 138--138
                      Anonymous   Inventions New and Interesting . . . . . 142--142
                      Anonymous   Inventions: Recently Patented Inventions 144--144
                      Anonymous   Airplane Passenger Service of Today, How
                                  Insects Lower Milk Yield, and more . . . 127--129
                      Anonymous   Repairing the Stern-Frame of the
                                  ``Northern Pacific'' . . . . . . . . . . 130--130
                Herbert T. Wade   The Aberdeen Chronograph . . . . . . . . 131--131
                   C. H. Claudy   Economic Tree Murder . . . . . . . . . . 132--132
                Alfred J. Lotka   The Failing Dollar . . . . . . . . . . . 133--133
                      Anonymous   Our Technical Achievement in the Great
                                  War --- II . . . . . . . . . . . . . . . 134--135
                    M. Luckiesh   Some Interesting Color Phenomena . . . . 135--135
                      Anonymous   A Revolving Apartment  . . . . . . . . . 136--137
                      Anonymous   Two Far-Reaching American Flights,
                                  Commonwealth Drydock at Boston ---
                                  Largest of its Type, and more  . . . . . 139--140
                      Anonymous   Chemical Cleaning with Glycol, Latest
                                  Patent Decisions, and more . . . . . . . 147--148

Scientific American
Volume 121, Number 7, August 16, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 157--157
                     H. E. Howe   The Service of the Chemist, Bridging the
                                  Jordan in War Times, and more  . . . . . 162--163
                 Victor W. Page   The Motor-Driven Commercial Vehicle  . . 164--164
                      Anonymous   Books: New Books, Etc. . . . . . . . . . 176--176
                      Anonymous   Our Proposed 1,000-Foot Steamers . . . . 151--151
                      Anonymous   Legal Advice with a Guarantee, Life
                                  Preservers For Air Passengers, and more  152--153
               Hawthorne Daniel   A Salvaging Submarine, Airplane Extremes 154--155
                   F. Rowlinson   Corrosion-Proof Steels . . . . . . . . . 156--156
                      Anonymous   The Standardization of Standards . . . . 157--157
                      Anonymous   Coasting in the Wake of a Ferry Boat . . 158--159
                      Anonymous   Our Technical Achievements in the Great
                                  War --- III  . . . . . . . . . . . . . . 160--161
                      Anonymous   Medium Capacity Trucks Popular, Rubber
                                  Mat for Baggage Transfer Trucks, and
                                  more . . . . . . . . . . . . . . . . . . 172--172

Scientific American
Volume 121, Number 8, August 23, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 185--185
                      Anonymous   Inventions New and Interesting . . . . . 192--192
                      Anonymous   Some Damp Reflections, Present Striking
                                  Use of X-Ray in Metallurgy, and more . . 179--181
             Robert G. Skerrett   Leather from the Sea . . . . . . . . . . 182--183
                      Anonymous   Ernst Heinrich Haeckel, 1834--1919 . . . 184--184
                   H. A. Crafts   Back to the Land . . . . . . . . . . . . 185--185
               F. Honoré   Piercing the Mountain Barrier Between
                                  France and Spain . . . . . . . . . . . . 186--187
                      Anonymous   Our Technical Achievements in the Great
                                  War --- IV . . . . . . . . . . . . . . . 188--189
                Lynn W. Meekins   World Markets for American Manufactures  190--191
               Henry A. Gardner   Legitimization of Soya Bean Oil  . . . . 196--196

Scientific American
Volume 121, Number 9, August 30, 1919

                      Anonymous   Correspondence . . . . . . . . . . . . . 205--205
           Henry Norris Russell   The Heavens in September, 1919 . . . . . 210--211
                      Anonymous   Inventions New and Interesting . . . . . 212--213
                      Anonymous   Inventions: Recently Patented Inventions 216--216
                      Anonymous   Modern Machine Design in Old China,
                                  Ventilation of the Vehicular Tunnel, and
                                  more . . . . . . . . . . . . . . . . . . 199--201
                A. Russell Bond   Completion of the Pearl Harbor Dry Dock  202--203
                   C. H. Claudy   When the Compass Goes Crazy  . . . . . . 204--204
                Herbert T. Wade   The James Watt Centenary . . . . . . . . 206--207
                      Anonymous   Our Technical Achievements in the Great
                                  War --- V  . . . . . . . . . . . . . . . 208--209
                      Anonymous   Desert Plants as Fodder, Electric
                                  Properties of Silicon and Germanium, and
                                  more . . . . . . . . . . . . . . . . . . 220--220