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Bancroft Gherardi and
F. B. Jewett Telephone Communication System of the
United States . . . . . . . . . . . . . 1--100
Francis F. Lucas Structure and Nature of Troostite . . . 101--120
Edward L. Nelson Radio Broadcasting Transmitters and
Related Transmission Phenomena . . . . . 121--140
A. B. Clark Wire Line Systems for National
Broadcasting . . . . . . . . . . . . . . 141--149
John R. Carson Notes on the Heaviside Operational
Calculus . . . . . . . . . . . . . . . . 150--162
Karl K. Darrow Contemporary Advances in Physics, XIX,
Fusion of Wave and Corpuscle Theories 163--188
M. K. Zinn Wave Propagation Over Continuously
Loaded Fine Wires . . . . . . . . . . . 189--206
R. L. Wegel Theory of Vibration of the Larynx . . . 207--227
Anonymous Abstracts of Technical Articles From
Bell System Sources . . . . . . . . . . 228--233
Anonymous Contributors to This Issue . . . . . . . 234--235
William Fondiller Developments in Communication Materials 237--257
Ralph Bown Transoceanic Telephone Service ---
Short-Wave Transmission . . . . . . . . 258--269
A. A. Oswald Transoceanic Telephone Service ---
Short-Wave Equipment . . . . . . . . . . 270--289
Norman R. French and
Charles W. Carter, Jr. and
Walter Koenig, Jr. The Words and Sounds of Telephone
Conversations . . . . . . . . . . . . . 290--324
John R. Carson The Reciprocal Energy Theorem . . . . . 325--331
W. P. Mason The Approximate Networks of Acoustic
Filters . . . . . . . . . . . . . . . . 332--340
Karl K. Darrow Contemporary Advances in Physics, XX,
Ionization of Gases by Light . . . . . . 341--355
D. A. Quarles Motion of Telephone Wires in Wind . . . 356--363
W. A. Shewhart Economic Quality Control of Manufactured
Product . . . . . . . . . . . . . . . . 364--389
Walter A. MacNair Optimum Reverberation Time for
Auditoriums . . . . . . . . . . . . . . 390--397
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 398--403
Anonymous Contributors to this Issue . . . . . . . 404--405
William Wilson and
Lloyd Espenschied Radio Telephone Service to Ships at Sea 407--428
H. S. Osbourne A General Switching Plan for Telephone
Toll Service . . . . . . . . . . . . . . 429--447
Herbert E. Ives and
Frank Gray and
M. W. Baldwin Image Transmission System for Two-Way
Television . . . . . . . . . . . . . . . 448--469
H. M. Stoller Synchronization System for Two-Way
Television . . . . . . . . . . . . . . . 470--477
D. G. Blattner and
L. G. Bostwick Sound Transmission System for Two-Way
Television . . . . . . . . . . . . . . . 478--482
W. H. Martin Transmitted Frequency Range for
Telephone Message Circuits . . . . . . . 483--486
A. B. Clark Some Recent Developments in Long
Distance Cables in the United States of
America . . . . . . . . . . . . . . . . 487--492
C. E. Lane Phase Distortion in Telephone Apparatus 493--521
H. Nyquist and
S. Brand Measurement of Phase Distortion . . . . 522--549
John C. Steinberg Effects of Phase Distortion on Telephone
Quality . . . . . . . . . . . . . . . . 550--566
A. B. Clark and
C. W. Green Long Distance Cable Circuit for Program
Transmission . . . . . . . . . . . . . . 567--594
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 595--599
Anonymous Contributors to this Issue . . . . . . . 600--602
Robert R. Williams Chemistry in the Telephone Industry . . 603--621
W. H. Martin and
W. F. Davidson The Trend in the Design of Telephone
Transmitters and Receivers . . . . . . . 622--627
A. E. Bowen and
G. L. Gilkeson Mutual Impedances of Ground-Return
Circuits . . . . . . . . . . . . . . . . 628--651
W. J. Williams and
Ralph G. McCurdy A Survey of Room Noise in Telephone
Locations . . . . . . . . . . . . . . . 652--667
Karl K. Darrow Contemporary Advances in Physics, XXI,
Interception and Scattering of Electrons
and Ions . . . . . . . . . . . . . . . . 668--696
L. T. Wilson A Study of Telephone Line Insulators . . 697--729
E. I. Green The Transmission Characteristics of
Open-Wire Telephone Lines . . . . . . . 730--759
Liss C. Peterson Transients in Parallel Grounded
Circuits, One of Which is of Infinite
Length . . . . . . . . . . . . . . . . . 760--769
E. B. Payne Impedance Correction of Wave Filters . . 770--793
H. W. Bode A Method of Impedance Correction . . . . 794--835
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 836--839
Anonymous Contributors to this Issue . . . . . . . 840--842
Charles B. Aiken The Detection of Two Modulated Waves
Which Differ Slightly in Carrier
Frequency . . . . . . . . . . . . . . . 1--19
F. E. Haworth A Magnetic Curve Tracer . . . . . . . . 20--32
Herbert E. Ives A Multi-Channel Television Apparatus . . 33--45
W. C. Jones Condenser and Carbon Microphones ---
Their Construction and Use . . . . . . . 46--62
G. C. Southworth Certain Factors Affecting the Gain of
Directive Antennas . . . . . . . . . . . 63--95
L. J. Sivian Absolute Calibration of Condenser
Transmitters . . . . . . . . . . . . . . 96--115
W. H. Martin Rating the Transmission Performance of
Telephone Circuits . . . . . . . . . . . 116--131
A. R. Kemp Paragutta, A New Insulating Material for
Submarine Cables . . . . . . . . . . . . 132--148
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 149--152
Anonymous Contributors to this Issue . . . . . . . 153--154
R. F. Pack Symposium on Coordination of Power and
Telephone Plant . . . . . . . . . . . . 155--158
W. H. Harrison and
A. E. Silver Trends in Telephone and Power Practise
as Affecting Coordination . . . . . . . 159--183
H. L. Wills and
O. B. Blackwell Status of Joint Development and Research
on Noise Frequency Induction . . . . . . 184--205
R. N. Conwell and
H. S. Warren Status of Joint Development and Research
on Low-Frequency Induction . . . . . . . 206--230
J. C. Martin and
H. L. Huber Status of Cooperative Work on Joint Use
of Poles . . . . . . . . . . . . . . . . 231--240
B. Gherardi Symposium on Coordination of Power and
Telephone Plant, Closing Remarks . . . . 241--242
Lloyd Espenschied and
William Wilson Overseas Radio Extensions to Wire
Telephone Networks . . . . . . . . . . . 243--264
Herbert E. Ives Some Optical Features in Two-Way
Television . . . . . . . . . . . . . . . 265--272
Edward C. Molina Bayes' Theorem --- An Expository
Presentation . . . . . . . . . . . . . . 273--283
Otto J. Zobel Extensions to the Theory and Design of
Electric Wave-Filters . . . . . . . . . 284--341
Anonymous Abstracts of Technical Articles From
Bell System Sources . . . . . . . . . . 342--345
Anonymous Contributors to this Issue . . . . . . . 346--348
Harvey Fletcher Some Physical Characteristics of Speech
and Music . . . . . . . . . . . . . . . 349--373
John R. Carson The Statistical Energy-Frequency
Spectrum of Random Disturbances . . . . 374--381
T. C. Henneberger and
P. G. Edwards Bridge Methods for Locating Resistance
Faults on Cable Wires . . . . . . . . . 382--407
Ronald M. Foster Mutual Impedance of Grounded Wires Lying
on the Surface of the Earth . . . . . . 408--419
John Riordan Transients in Grounded Wires on the
Earth's Surface . . . . . . . . . . . . 420--431
John R. Shea Developments in the Manufacture of
Lead-Covered Paper-Insulated Telephone
Cable . . . . . . . . . . . . . . . . . 432--471
W. Howard Wise Effect of Ground Permeability on Ground
Return Circuits . . . . . . . . . . . . 472--484
George Crisson Negative Impedances and the Twin 21-Type
Repeater . . . . . . . . . . . . . . . . 485--513
R. L. Jones New Standard Specifications for Wood
Poles . . . . . . . . . . . . . . . . . 514--524
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 525--528
Anonymous Contributors to this Issue . . . . . . . 529--530
R. I. Wilkinson The Interconnection of Telephone Systems
--- Graded Multiples . . . . . . . . . . 531--564
E. C. Wente and
A. L. Thuras Moving-Coil Telephone Receivers and
Microphones . . . . . . . . . . . . . . 565--576
G. D. Gillett Some Developments in Common Frequency
Broadcasting . . . . . . . . . . . . . . 577--600
Austin Bailey and
T. A. McCann Application of Printing Telegraph to
Long-Wave Radio Circuits . . . . . . . . 601--615
W. B. Snow Audible Frequency Ranges of Music,
Speech and Noise . . . . . . . . . . . . 616--627
Karl K. Darrow Contemporary Advances in Physics, XXII
--- Transmutation . . . . . . . . . . . 628--655
E. Bruce Developments in Short-Wave Directive
Antennas . . . . . . . . . . . . . . . . 656--683
Anonymous Abstracts of Technical Articles From
Bell System Sources . . . . . . . . . . 684--690
Anonymous Contributors to this Issue . . . . . . . 691--692
Anonymous The Faraday Centenary . . . . . . . . . iii--vii
J. B. Johnson The Cathode Ray Oscillograph . . . . . . 1--27
C. E. Fay The Operation of Vacuum Tubes as Class B
and Class C Amplifiers . . . . . . . . . 28--52
O. B. Blackwell The Time Factor in Telephone
Transmission . . . . . . . . . . . . . . 53--66
F. B. Llewellyn Constant Frequency Oscillators . . . . . 67--100
D. A. McLean and
R. L. Peek, Jr. and
E. E. Schumacher Some Physical Properties of Wiping
Solders . . . . . . . . . . . . . . . . 101--125
H. Nyquist Regeneration Theory . . . . . . . . . . 126--147
Karl K. Darrow Contemporary Advances in Physics, XXIII
--- Data and Nature of Cosmic Rays . . . 148--184
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 185--194
Anonymous Contributors to this Issue . . . . . . . 195--196
H. A. Affel and
W. S. Gorton and
R. W. Chesnut A New Key West--Havana Carrier Telephone
Cable . . . . . . . . . . . . . . . . . 197--212
E. B. Wood and
D. R. Brobst Cellulose Acetate Treatment for Textile
Insulation --- Engineering Development 213--230
C. R. Avery and
H. Kress Cellulose Acetate Treatment for Textile
Insulation --- Development of the
Manufacturing Process . . . . . . . . . 231--244
W. C. Jones and
A. H. Inglis The Development of a Handset for
Telephone Stations . . . . . . . . . . . 245--263
G. R. Harris Precision Methods Used in Constructing
Electric Wave Filters for Carrier
Systems . . . . . . . . . . . . . . . . 264--282
Hal F. Fruth Cathode Sputtering --- A Commercial
Application . . . . . . . . . . . . . . 283--292
A. H. Inglis and
C. H. G. Gray and
R. T. Jenkins A Voice and Ear for Telephone
Measurements . . . . . . . . . . . . . . 293--317
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 318--323
Anonymous Contributors to this Issue . . . . . . . 324--325
H. S. Osborne and
A. M. Dowling The Electrical Discoveries of Joseph
Henry, A Supplement to The Bell System
Technical Journal, July 1932 . . . . . . 1--22
Bancroft Gherardi Henry as an Electrical Pioneer . . . . . 327--333
C. J. Prescott, Jr. and
M. J. Kelly The Caesium--Oxygen--Silver
Photoelectric Cell . . . . . . . . . . . 334--367
S. B. Wright and
D. Mitchell Two-Way Radio Telephone Circuits . . . . 368--382
K. L. Scott Magnet Steels and Permanent Magnets ---
Relationships Among Their Magnetic
Properties . . . . . . . . . . . . . . . 383--401
P. B. Flanders A Method of Measuring Acoustic Impedance 402--410
E. J. Sterba and
C. B. Feldman Transmission Lines for Short-Wave Radio
Systems . . . . . . . . . . . . . . . . 411--450
H. C. Harrison and
P. B. Flanders An Efficient Miniature Condenser
Microphone System . . . . . . . . . . . 451--461
H. H. Nance Wire Communication Aids to Air
Transportation . . . . . . . . . . . . . 462--476
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 477--481
Anonymous Contributors to this Issue . . . . . . . 482--483
Bancroft Gherardi and
Frank B. Jewett World-Wide Telephony --- Its Problems
and Future . . . . . . . . . . . . . . . 485--519
A. B. Clark and
H. S. Osborne Long Distance Telephone Circuits in
Cable . . . . . . . . . . . . . . . . . 520--545
C. J. Davisson The Conception and Demonstration of
Electron Waves . . . . . . . . . . . . . 546--562
Edward C. Molina An Expansion for Laplacian Integrals in
Terms of Incomplete Gamma Functions, and
Some Applications . . . . . . . . . . . 563--575
Karl K. Darrow Contemporary Advances in Physics, XXIV
--- High-Frequency Phenomena in Gases,
First Part . . . . . . . . . . . . . . . 576--607
A. J. Christopher Transformer Coupling Circuits for
High-Frequency Amplifiers . . . . . . . 608--621
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 622--628
Anonymous Contributors to this Issue . . . . . . . 629--630
H. G. Walker and
L. S. Ford Pulp Insulation for Telephone Cables . . 1--21
F. H. Best A Recording Transmission Measuring
System for Telephone Circuit Testing . . 22--34
Ray S. Hoyt Probability Theory and Telephone
Transmission Engineering . . . . . . . . 35--75
A. M. Curtis An Oscillograph for Ten Thousand Cycles 76--90
Karl K. Darrow Contemporary Advances in Physics, XXV,
High-Frequency Phenomena in Gases,
Second Part . . . . . . . . . . . . . . 91--118
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 119--122
Anonymous Contributors to this Issue . . . . . . . 123--124
J. C. Schelleng and
C. R. Burrows and
E. B. Ferrell Ultra-Short Wave Propagation . . . . . . 125--161
John Riordan and
Erling D. Sunde Mutual Impedance of Grounded Wires for
Horizontally Stratified Two-Layer Earth 162--177
J. H. Scaff and
E. E. Schumacher Some Theoretical and Practical Aspects
of Gases in Metals . . . . . . . . . . . 178--196
C. R. Englund and
A. B. Crawford and
W. W. Mumford Some Results of a Study of
Ultra-Short-Wave Transmission Phenomena 197--227
W. R. Bennett New Results in the Calculation of
Modulation Products . . . . . . . . . . 228--243
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 244--247
Anonymous Contributors to This Issue . . . . . . . 248--249
A. B. Clark and
B. W. Kendall Carrier in Cable . . . . . . . . . . . . 251--263
Ronald M. Foster Mutual Impedance of Grounded Wires Lying
On or Above the Surface of the Earth . . 264--287
Karl K. Darrow Contemporary Advances in Physics, XXVI,
The Nucleus, First Part . . . . . . . . 288--330
F. W. McKown and
J. W. Emling A System of Effective Transmission Data
for Rating Telephone Circuits . . . . . 331--346
T. G. Castner and
C. W. Carter, Jr. Developments in the Application of
Articulation Testing . . . . . . . . . . 347--370
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 371--374
Anonymous Contributors to this Issue . . . . . . . 375--376
Harvey Fletcher and
W. A. Munson Loudness, Its Definition, Measurement
and Calculation . . . . . . . . . . . . 377--430
Albert C. Walker Effect of Atmospheric Humidity and
Temperature on the Relation Between
Moisture Content and Electrical
Conductivity of Cotton . . . . . . . . . 431--451
John G. Ferguson Classification of Bridge Methods of
Measuring Impedances . . . . . . . . . . 452--468
R. F. Davis and
H. R. Huntley Some Theoretical and Practical Aspects
of Noise Induction . . . . . . . . . . . 469--497
E. T. Burton and
E. M. Boardman Audio Frequency Atmospherics . . . . . . 498--516
Leonard Gladstone Abraham Certain Factors Limiting the Volume
Efficiency of Repeatered Telephone
Circuits . . . . . . . . . . . . . . . . 517--532
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 533--537
Anonymous Contributors to this Issue . . . . . . . 538--539
H. S. Black Stabilized Feedback Amplifiers . . . . . 1--18
A. G. Chapman Open-Wire Crosstalk . . . . . . . . . . 19--58
F. B. Llewellyn Vacuum Tube Electronics at Ultra-high
Frequencies . . . . . . . . . . . . . . 59--101
Karl K. Darrow Contemporary Advances in Physics, XXVII
The Nucleus, Second Part . . . . . . . . 102--158
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 159--160
Anonymous Contributors to this Issue . . . . . . . 161
F. S. Goucher The Carbon Microphone: An Account of
Some Researches Bearing on Its Action 163--194
A. G. Chapman Open-Wire Crosstalk . . . . . . . . . . 195--238
Harvey Fletcher Symposium on Wire Transmission of
Symphonic Music and Its Reproduction in
Auditory Perspective, Basic Requirements 239--244
J. C. Steinberg and
W. B. Snow Physical Factors, Symposium on Wire
Transmission of Symphonic Music and Its
Reproduction in Auditory Perspective . . 245--258
E. C. Wente and
A. L. Thuras Loud Speakers and Microphones, Symposium
on Wire Transmission of Symphonic Music
and Its Reproduction in Auditory
Perspective . . . . . . . . . . . . . . 259--277
E. O. Scriven Reproduction in Auditory Perspective . . 278--284
H. A. Affel and
R. W. Chesnut and
R. H. Mills Transmission Lines, Symposium on Wire
Transmission of Symphonic Music and Its
Reproduction in Auditory Perspective . . 285--300
E. H. Bedell and
Iden Kerney System Adaptation, Symposium on Wire
Transmission of Symphonic Music and Its
Reproduction in Auditory Perspective . . 301--308
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 309--312
Anonymous Contributors to this Issue . . . . . . . 313--314
R. C. Mathes and
S. B. Wright The Compandor --- An Aid Against Static
in Radio Telephony . . . . . . . . . . . 315--332
C. B. Aiken The Effect of Background Noise in Shared
Channel Broadcasting . . . . . . . . . . 333--350
H. S. Hamilton Wide-Band Open-Wire Program System . . . 351--381
A. W. Clement Line Filter for Program System . . . . . 382--390
Karl K. Darrow Contemporary Advances in Physics, XXVIII
--- The Nucleus, Third Part . . . . . . 391--404
W. P. Mason Electrical Wave Filters Employing Quartz
Crystals as Elements . . . . . . . . . . 405--452
F. R. Lack and
G. W. Willard and
I. E. Fair Some Improvements in Quartz Crystal
Circuit Elements . . . . . . . . . . . . 453--463
Pierre Mertz and
Frank Gray A Theory of Scanning and Its Relation to
the Characteristics of the Transmitted
Signal in Telephotography and Television 464--515
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 516--519
Anonymous Contributors to this Issue . . . . . . . 520--521
S. A. Levin and
Liss C. Peterson An Extension of the Theory of
Three-Electrode Vacuum Tube Circuits . . 523--531
S. A. Schelkunoff The Electromagnetic Theory of Coaxial
Transmission Lines and Cylindrical
Shields . . . . . . . . . . . . . . . . 532--579
Karl K. Darrow Contemporary Advances in Physics, XXVIII
--- The Nucleus, Third Part . . . . . . 580--613
D. B. Penick The Measurement and Reduction of
Microphonic Noise in Vacuum Tubes . . . 614--633
G. L. Pearson Fluctuation Noise in Vacuum Tubes . . . 634--653
L. Espenschied and
M. E. Strieby Systems for Wide-Band Transmission Over
Coaxial Lines . . . . . . . . . . . . . 654--679
E. Peterson and
J. G. Kreer and
L. A. Ware Regeneration Theory and Experiment . . . 680--700
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 701--703
Anonymous Contributors to this Issue . . . . . . . 704--705
A. B. Clark Wide Band Transmission Over Balanced
Circuits . . . . . . . . . . . . . . . . 1--7
W. C. Ellis and
Earle E. Schumacher A Survey of Magnetic Materials in
Relation to Structure . . . . . . . . . 8--43
H. A. Pidgeon Theory of Multi-Electrode Vacuum Tubes 44--84
J. B. Johnson and
F. B. Llewellyn Limits to Amplification . . . . . . . . 85--96
M. J. Kelly and
A. L. Samuel Vacuum Tubes as High-Frequency
Oscillators . . . . . . . . . . . . . . 97--134
E. Bruce and
A. C. Beck and
L. R. Lowry Horizontal Rhombic Antennas . . . . . . 135--158
A. L. Thuras and
R. T. Jenkins and
H. T. O'Neil Extraneous Frequencies Generated in Air
Carrying Intense Sound Waves . . . . . . 159--172
Anonymous Abstracts of Articles from Bell System
Sources . . . . . . . . . . . . . . . . 173--175
Anonymous Contributors to this Issue . . . . . . . 176--178
R. N. Hunter and
R. P. Booth Cable Crosstalk--Effect of Non-Uniform
Current Distribution in the Wires . . . 179--194
E. Bruce and
A. C. Beck Experiments with Directivity Steering
for Fading Reduction . . . . . . . . . . 195--210
H. W. Bode A General Theory of Electric Wave
Filters . . . . . . . . . . . . . . . . 211--214
H. W. Bode and
R. L. Dietzold Ideal Wave Filters . . . . . . . . . . . 215--252
C. R. Burrows and
L. E. Hunt and
A. Decino Ultra-Short-Wave Propagation: Mobile
Urban Transmission Characteristics . . . 253--272
H. P. Lawther, Jr. An Application of Number Theory to the
Splicing of Telephone Cables . . . . . . 273--284
Karl K. Darrow Contemporary Advances in Physics, XXIX,
The Nucleus, Fourth Part . . . . . . . . 285--321
Robert M. Kalb and
William R. Bennett Ferromagnetic Distortion of a
Two-Frequency Wave . . . . . . . . . . . 322--359
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 360--365
Anonymous Contributors to this Issue . . . . . . . 366--367
C. R. Englund and
A. B. Crawford and
W. W. Mumford Further Results of a Study of
Ultra-Short-Wave Transmission Phenomena 369--387
E. C. Wente Acoustical Instruments . . . . . . . . . 388--412
J. A. Becker Thermionic Electron Emission . . . . . . 413--476
Charles R. Burrows Radio Propagation Over Spherical Earth 477--488
F. A. Polkinghorn and
N. F. Schlaack A Single-Sideband Short-Wave System for
Transatlantic Telephony . . . . . . . . 489--508
Ray S. Hoyt and
Sallie Pero Mead Mutual Impedances of Parallel Wires . . 509--533
N. F. Schlaack and
F. A. Polkinghorn An Unattended Ultra-Short-Wave Radio
Telephone System . . . . . . . . . . . . 534--541
Anonymous Around the World by Telephone . . . . . 542--543
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 544--549
Anonymous Contributors to this Issue . . . . . . . 550--551
F. B. Jewett Dr. George A. Campbell . . . . . . . . . 553--557
Anonymous Dr. Campbell's Memoranda of 1907 and
1912 . . . . . . . . . . . . . . . . . . 558--572
H. R. Huntley and
E. J. O'Connell Some Aspects of Low-Frequency Induction
Between Power and Telephone Circuits . . 573--599
Leonard Gladstone Abraham Circulating Currents and Singing on
Two-Wire Cable Circuits . . . . . . . . 600--631
F. B. Llewellyn Operation of Ultra-High-Frequency Vacuum
Tubes . . . . . . . . . . . . . . . . . 632--665
S. A. Levin and
Liss C. Peterson Further Extensions of the Theory of
Multi-Electrode Vacuum Tube Circuits . . 666--679
Austin Bailey and
Howard M. Thomson Transatlantic Long-Wave Radio Telephone
Transmission and Related Phenomena from
1923 to 1933 . . . . . . . . . . . . . . 680--697
Anonymous Technical Digests . . . . . . . . . . . 698--698
H. E. Haring and
U. B. Thomas and
E. E. Schumacher and
G. S. Phipps Technical Digests: Superiorities of
Lead-Calcium Alloys for Storage Battery
Construction . . . . . . . . . . . . . . 699--701
F. A. Gifford and
R. B. Meader Technical Digests: Marine Radio
Telephone Service for Boston Harbor . . 702--707
E. B. Hansen Technical Digests: Harbor Craft
Ship-to-Shore Radio Telephone Service in
Puget Sound Area . . . . . . . . . . . . 708--712
H. N. Willets Technical Digests: Ship Sets for Harbor
Ship-to-Shore Service . . . . . . . . . 713--717
W. P. Mason Technical Digests: An Electromechanical
Representation of a Piezoelectric
Crystal Used As A Transducer . . . . . . 718--723
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 724--727
Anonymous Contributors to this Issue . . . . . . . 728--730
Austin Bailey and
A. E. Harper Long-Wave Radio Transmission Phenomena
Associated with a Cessation of the Sun's
Rays . . . . . . . . . . . . . . . . . . 1--19
R. M. Burns The Corrosion of Metals---I. Mechanism
of Corrosion Processes . . . . . . . . . 20--38
Victor E. Legg Magnetic Measurements at Low Flux
Densities Using the Alternating Current
Bridge . . . . . . . . . . . . . . . . . 39--62
R. M. Bozorth The Present Status of Ferromagnetic
Theory . . . . . . . . . . . . . . . . . 63--91
S. A. Schelkunoff Some Equivalence Theorems of
Electromagnetics and Their Application
to Radiation Problems . . . . . . . . . 92--112
G. W. Elmen Magnetic Alloys of Iron, Nickel, and
Cobalt . . . . . . . . . . . . . . . . . 113--135
A. G. Ganz and
A. G. Laird Improvements in Communication
Transformers . . . . . . . . . . . . . . 136--150
J. M. Barstow and
P. W. Blye and
H. E. Kent Technical Digests--Measurement of
Telephone Noise and Power Wave Shape . . 151--156
A. M. Skellett Technical Digests---On the Correlation
of Radio Transmission with Solar
Phenomena . . . . . . . . . . . . . . . 157--161
J. P. Schafer and
W. M. Goodall Technical Digests---Eclipse Effects in
the Ionsphere . . . . . . . . . . . . . 162--166
R. H. Card Technical Digests---Earth Resistivity
and Geological Structure . . . . . . . . 167--171
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 172--176
Anonymous Contributors to this Issue . . . . . . . 177--179
R. K. Potter and
A. C. Peterson, Jr. The Reliability of Short-Wave Radio
Telephone Circuits . . . . . . . . . . . 181--196
C. J. Christensen and
G. L. Pearson Spontaneous Resistance Fluctuations in
Carbon Microphones and Other Granular
Resistances . . . . . . . . . . . . . . 197--223
Karl K. Darrow Contemporary Advances in Physics, XXX,
The Theory of Magnetism . . . . . . . . 224--247
E. I. Green and
F. A. Leibe and
H. E. Curtis The Proportioning of Shielded Circuits
for Minimum High-Frequency Attenuation 248--283
G. C. Southworth Hyper-Frequency Wave Guides---General
Considerations and Experimental Results 284--309
John R. Carson and
Sallie P. Mead and
S. A. Schelkunoff Hyper-Frequency Wave
Guides---Mathematical Theory . . . . . . 310--333
W. O. Pennell and
H. P. Lawther A Magneto-Elastic Source of Noise in
Steel Telephone Wires . . . . . . . . . 334--339
John R. Carson An Extension of Operational Calculus . . 340--342
R. M. Burns and
H. E. Haring Technical Digests---Determination of the
Corrosion Behavior of Painted Iron and
the Inhibitive Action of Paints . . . . 343--348
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 349--350
Anonymous Contributors to this Issue . . . . . . . 351--353
E. C. Molina A Laplacian Expansion for
Hermitian--Laplace Functions of High
Order . . . . . . . . . . . . . . . . . 355--362
R. H. Colley and
C. H. Amadon The Relation Between Penetration and
Decay in Creosoted Southern Pine Poles 363--379
F. M. Bronson Tandem Operation in the Bell System . . 380--404
R. N. Marshall and
F. F. Romanow A Non-Directional Microphone . . . . . . 405--423
R. V. L. Hartley Oscillations in Systems with Non-linear
Reactance . . . . . . . . . . . . . . . 424--440
L. W. Hussey and
L. R. Wrathall Oscillations in an Electromechanical
System . . . . . . . . . . . . . . . . . 441--445
D. A. Quarles A New Type of Underground Telephone Wire 446--454
L. P. Ferris and
B. G. King and
P. W. Spence and
H. B. Williams Technical Digests---Effect of Electric
Shock on the Heart . . . . . . . . . . . 455--468
W. H. Doherty Technical Digests---A New
High-Efficiency Power Amplifier for
Modulated Waves . . . . . . . . . . . . 469--475
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 476--479
Anonymous Contributors to this Issue . . . . . . . 480--482
Anonymous Technical Developments Underlying the
Toll Services of the Bell System: A
Supplement to the Bell System Technical
Journal, July 1936 . . . . . . . . . . . 1--80
Beverly L. Clarke and
H. W. Hermance Microchemical and Special Methods of
Analysis in Communication Research . . . 483--503
A. D. Knowlton and
G. A. Locke and
F. J. Singer Switchboards and Signaling Facilities of
the Teletypewriter Exchange System . . . 504--528
R. E. Pierce and
E. W. Bemis A Transmission System for Teletypewriter
Exchange Service . . . . . . . . . . . . 529--548
F. W. Reynolds A New Telephotograph System . . . . . . 549--574
F. B. Llewellyn Equivalent Networks Of Negative-Grid
Vacuum Tubes at Ultra-High Frequencies 575--586
J. A. Carr Forces of Oblique Winds on Telephone
Wires . . . . . . . . . . . . . . . . . 587--602
R. M. Burns Corrosion of Metals---II. Lead and
Lead-Alloy Cable Sheathing . . . . . . . 603--625
C. J. Spain and
D. P. Loye and
E. W. Templin Technical Digests---Reduction of
Airplane Noise and Vibration . . . . . . 626--627
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 628--632
Anonymous Contributors to this Issue . . . . . . . 633--634
M. E. Strieby A Million-Cycle Telephone System . . . . 1--9
A. L. Samuel and
N. E. Sowers A Power Amplifier for Ultra-High
Frequencies . . . . . . . . . . . . . . 10--34
W. Howard Wise The Physical Reality of Zenneck's
Surface Wave . . . . . . . . . . . . . . 35--44
Charles R. Burrows Radio Propagation Over Plane Earth ---
Field Strength Curves . . . . . . . . . 45--75
J. O'R. Coleman and
R. F. Davis The Inductive Coordination of
Common-Neutral Power Distribution
Systems and Telephone Circuits . . . . . 76--100
S. O. Rice Series for the Wave Function of a
Radiating Dipole at the Earth's Surface 101--109
E. D. Sunde Technical Digests --- Currents and
Potentials along Leaky Ground-Return
Conductors . . . . . . . . . . . . . . . 110--112
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 113--115
Anonymous Contributors to this Issue . . . . . . . 116--117
Edwin H. Colpitts Recent Trends in Toll Transmission in
the United States . . . . . . . . . . . 119--143
S. A. Schelkunoff and
T. M. Odarenko Crosstalk Between Coaxial Transmission
Lines . . . . . . . . . . . . . . . . . 144--164
C. N. Hickman Sound Recording on Magnetic Tape . . . . 165--177
E. L. Norton Constant Resistance with Applications to
Filter Groups . . . . . . . . . . . . . 178--193
R. E. Waterman and
John Leutritz and
Caleb M. Hill A Laboratory Evaluation of Wood
Preservatives . . . . . . . . . . . . . 194--211
W. B. Ellwood and
V. E. Legg Study of Magnetic Losses at Low Flux
Densities in Permalloy Sheet . . . . . . 212--227
Albert C. Walker Moisture in Textiles . . . . . . . . . . 228--246
Anonymous Abstracts of Technical Papers from Bell
System Sources . . . . . . . . . . . . . 247--248
Anonymous Contributors to this Issue . . . . . . . 249--250
Edwin H. Colpitts Scientific Research Applied to the
Telephone Transmitter and Receiver . . . 251--274
W. P. Mason and
R. A. Sykes The Use of Coaxial and Balanced
Transmission Lines in Filters and Wide
Band Transformers for High Radio
Frequencies . . . . . . . . . . . . . . 275--302
John Riordan A Ladder Network Theorem . . . . . . . . 303--318
Karl K. Darrow Contemporary Advances in Physics, XXXI
--- Spinning Atoms and Spinning
Electrons . . . . . . . . . . . . . . . 319--336
H. T. Friis and
C. B. Feldman A Multiple Unit Steerable Antenna for
Short-Wave Reception . . . . . . . . . . 337--419
Anonymous Abstracts of Technical Papers from Bell
System Sources . . . . . . . . . . . . . 420--421
Anonymous Contributors in this Issue . . . . . . . 422
W. P. Mason Resistance Compensated Band-Pass Crystal
Filters for Use in Unbalanced Circuits 423--436
E. Peterson and
J. M. Manley and
L. R. Wrathall Magnetic Generation of a Group of
Harmonics . . . . . . . . . . . . . . . 437--455
S. B. Wright The Vodas . . . . . . . . . . . . . . . 456--474
C. C. Taylor Radio Telephone Noise Reduction by Voice
Control at Receiver . . . . . . . . . . 475--486
H. A. Affel Transmitted Frequency Range for Circuits
in Broad-Band Systems . . . . . . . . . 487--492
E. J. Murphy and
S. O. Morgan The Dielectric Properties of Insulating
Materials . . . . . . . . . . . . . . . 493--512
John R. Carson and
Thornton C. Fry Variable Frequency Electric Circuit
Theory with Application to the Theory of
Frequency-Modulation . . . . . . . . . . 513--540
Pierre Mertz and
K. W. Pfleger Irregularities in Broad-Band Wire
Transmission Circuits . . . . . . . . . 541--559
Ralph Bown Technical Digests --- Transoceanic Radio
Telephone Development . . . . . . . . . 560--567
A. L. Samuel Technical Digests --- A Negative-Grid
Triode Oscillator and Amplifier for
Ultra-High Frequencies . . . . . . . . . 568--573
Charles R. Burrows Addendum to `Radio Propagation Over
Plane Earth --- Field Strength Curves' 574--577
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 578--580
Anonymous Contributors to this Issue . . . . . . . 581--583
F. H. Best New Transmission Measuring Systems for
Telephone Circuit Maintenance . . . . . 1--16
S. A. Schelkunoff The Impedance Concept and its
Application to Problems of Reflection,
Refraction, Shielding and Power
Absorption . . . . . . . . . . . . . . . 17--48
C. E. Fay and
A. L. Samuel and
W. Shockley On the Theory of Space Charge Between
Parallel Plane Electrodes . . . . . . . 49--79
C. W. Green and
E. I. Green A Carrier Telephone System for Toll
Cables . . . . . . . . . . . . . . . . . 80--105
R. W. Chesnut and
L. M. Ilgenfritz and
A. Kenner Cable Carrier Telephone Terminals . . . 106--124
C. E. Lane Crystal Channel Filters for the Cable
Carrier System . . . . . . . . . . . . . 125--136
M. A. Weaver and
R. S. Tucker and
P. S. Darnell Crosstalk and Noise Features of Cable
Carrier Telephone System . . . . . . . . 137--161
H. J. Fisher and
M. L. Almquist and
R. H. Mills A New Single Channel Carrier Telephone
System . . . . . . . . . . . . . . . . . 162--183
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 184--190
Anonymous Contributors to this Issue . . . . . . . 191--193
J. A. Carr and
F. V. Haskell Studies of Telephone Line Wire Spacing
Problems . . . . . . . . . . . . . . . . 195--228
H. W. Bode Variable Equalizers . . . . . . . . . . 229--244
C. O. Gibbon An Explanation of the Common Battery
Anti-sidetone Subscriber Set . . . . . . 245--257
Arthur W. Horton, Jr. The Occurrence and Effect of Lockout
Occasioned by Two Echo Suppressors . . . 258--280
A. C. Norwine and
O. J. Murphy Characteristic Time Intervals in
Telephonic Conversation . . . . . . . . 281--291
Karl K. Darrow Radioactivity --- Artificial and Natural 292--318
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 319--323
Anonymous Contributors to this Issue . . . . . . . 324--325
Julian Blanchard Hertz, the Discoverer of Electric Waves 327--337
W. C. Jones Instruments for the New Telephone Sets 338--357
A. H. Inglis Transmission Features of the New
Telephone Sets . . . . . . . . . . . . . 358--380
Beverly L. Clarke and
A. E. Ruehle Spectrochemical Analysis in
Communication Research . . . . . . . . . 381--392
W. Herriott High Speed Motion Picture Photography 393--405
H. C. Montgomery An Optical Harmonic Analyzer . . . . . . 406--415
W. G. Gustafson Magnetic Shielding of Transformers at
Audio Frequencies . . . . . . . . . . . 416--437
M. E. Strieby Coaxial Cable System for Television
Transmission . . . . . . . . . . . . . . 438--457
G. H. Stevenson Stabilized Feedback Oscillators . . . . 458--474
C. J. Davisson The Discovery of Electron Waves . . . . 475--482
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 483--485
Anonymous Contributors to this Issue . . . . . . . 486--488
C. R. Englund and
A. B. Crawford and
W. W. Mumford Ultra-Short-Wave Transmission and
Atmospheric Irregularities . . . . . . . 489--519
S. B. Wright Amplitude Range Control . . . . . . . . 520--538
A. C. Norwine Devices for Controlling Amplitude
Characteristics of Telephonic Signals 539--554
Charles R. Burrows The Exponential Transmission Line . . . 555--573
L. A. Meacham The Bridge Stabilized Oscillator . . . . 574--591
A. J. Rack Effect of Space Charge and Transit Time
on the Shot Noise in Diodes . . . . . . 592--619
E. F. Watson Fundamentals of Teletypewriters Used in
the Bell System . . . . . . . . . . . . 620--639
E. J. Murphy and
S. O. Morgan The Dielectric Properties of Insulating
Materials . . . . . . . . . . . . . . . 640--669
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 670--672
Anonymous Contributors to this Issue . . . . . . . 673--674
Frank Gray Electrostatic Electron-Optics . . . . . 1--31
E. Peterson and
L. W. Hussey Equivalent Modulator Circuits . . . . . 32--48
J. T. O'Leary and
E. C. Blessing and
J. W. Beyer An Improved Three-Channel Carrier
Telephone System . . . . . . . . . . . . 49--75
F. J. Scudder and
J. N. Reynolds Crossbar Dial Telephone Switching System 76--118
B. W. Kendall and
H. A. Affel A Twelve-Channel Carrier Telephone
System for Open-Wire Lines . . . . . . . 119--142
R. B. Shanck and
F. A. Cowan and
S. I. Cory Recent Developments in the Measurement
of Telegraph Transmission . . . . . . . 143--189
Karl K. Darrow Contemporary Advances in Physics, XXXII,
Particles of the Cosmic Rays . . . . . . 190--217
W. H. Harrison Hurricane and Flood --- September 1938 218--221
Lloyd Espenschied and
R. C. Newhouse A Terrain Clearance Indicator . . . . . 222--234
J. J. Pilliod Transcontinental Telephone Lines . . . . 235--245
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 246--250
Anonymous Contributors to this Issue . . . . . . . 251--254
A. G. Johnson and
L. I. Shaw Some Ceramic Manufacturing Developments
of the Western Electric Company . . . . 255--279
F. B. Llewellyn and
A. E. Bowen The Production of Ultra-High-Frequency
Oscillations by Means of Diodes . . . . 280--291
C. N. Anderson A Representation of the Sunspot Cycle 292--299
John Riordan The Number of Impedances of an $n$
Terminal Network . . . . . . . . . . . . 300--314
R. S. Caruthers Copper Oxide Modulators in Carrier
Telephone Systems . . . . . . . . . . . 315--337
L. C. Starbird and
J. D. Mathis Some Applications of the Type `J'
Carrier System . . . . . . . . . . . . . 338--362
L. M. Ilgenfritz and
R. N. Hunter and
A. L. Whitman Line Problems in the Development of the
Twelve-Channel Open-Wire Carrier System 363--387
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 388--390
Anonymous Contributors to this Issue . . . . . . . 391--393
John R. Carson Frequency-Modulation: Theory of the
Feedback Receiving Circuit . . . . . . . 395--403
J. G. Chaffee The Application of Negative Feedback to
Frequency-Modulation Systems . . . . . . 404--437
V. E. Legg Survey of Magnetic Materials and
Applications in the Telephone System . . 438--464
Liss C. Peterson Impedance Properties of Electron Streams 465--481
J. R. Townsend and
W. J. Clarke Plastic Materials in Telephone Use . . . 482--501
E. J. Murphy and
S. O. Morgan The Dielectric Properties of Insulating
Materials, III Alternating and Direct
Current Conductivity . . . . . . . . . . 502--537
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 538--543
Anonymous Contributors to this Issue . . . . . . . 544--545
W. B. Bedell and
G. B. Ransom and
W. A. Stevens Experience in Applying Carrier Telephone
Systems to Toll Cables . . . . . . . . . 547--587
M. J. Aykroyd and
D. G. Geiger The Toronto--Barrie Toll Cable . . . . . 588--604
E. Dietze and
W. D. Goodale, Jr. The Computation of the Composite Noise
Resulting from Random Variable Sources 605--623
B. D. Holbrook and
J. T. Dixon Load Rating Theory for Multi-Channel
Amplifiers . . . . . . . . . . . . . . . 624--644
W. Shockley The Quantum Physics of Solids, I. The
Energies of Electrons in Crystals . . . 645--723
C. F. Wiebusch Dial Clutch of the Spring Type . . . . . 724--741
Anonymous Abstracts of Technical Articles from
Bell System Sources . . . . . . . . . . 742--746
Anonymous Contributors to this Issue . . . . . . . 747--748