Last update:
Fri Oct 13 08:58:54 MDT 2017
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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