Table of contents for issues of The Bell System Technical Journal

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Volume 9, Number 1, January, 1930
Volume 9, Number 2, April, 1930
Volume 9, Number 3, July, 1930
Volume 9, Number 4, October, 1930
Volume 10, Number 1, January, 1931
Volume 10, Number 2, April, 1931
Volume 10, Number 3, July, 1931
Volume 10, Number 4, October, 1931
Volume 11, Number 1, January, 1932
Volume 11, Number 2, April, 1932
Volume 11, Number 3, July, 1932
Volume 11, Number 4, October, 1932
Volume 12, Number 1, January, 1933
Volume 12, Number 2, April, 1933
Volume 12, Number 3, July, 1933
Volume 12, Number 4, October, 1933
Volume 13, Number 1, January, 1934
Volume 13, Number 2, April, 1934
Volume 13, Number 3, July, 1934
Volume 13, Number 4, October, 1934
Volume 14, Number 1, January, 1935
Volume 14, Number 2, April, 1935
Volume 14, Number 3, July, 1935
Volume 14, Number 4, October, 1935
Volume 15, Number 1, January, 1936
Volume 15, Number 2, April, 1936
Volume 15, Number 3, July, 1936
Volume 15, Number 4, October, 1936
Volume 16, Number 1, January, 1937
Volume 16, Number 2, April, 1937
Volume 16, Number 3, July, 1937
Volume 16, Number 4, October, 1937
Volume 17, Number 1, January, 1938
Volume 17, Number 2, April, 1938
Volume 17, Number 3, July, 1938
Volume 17, Number 4, October, 1938
Volume 18, Number 1, January, 1939
Volume 18, Number 2, April, 1939
Volume 18, Number 3, July, 1939
Volume 18, Number 4, October, 1939


The Bell System Technical Journal
Volume 9, Number 1, January, 1930

          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

The Bell System Technical Journal
Volume 9, Number 2, April, 1930

              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

The Bell System Technical Journal
Volume 9, Number 3, July, 1930

             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

The Bell System Technical Journal
Volume 9, Number 4, October, 1930

             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


The Bell System Technical Journal
Volume 10, Number 1, January, 1931

               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

The Bell System Technical Journal
Volume 10, Number 2, April, 1931

                     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

The Bell System Technical Journal
Volume 10, Number 3, July, 1931

                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

The Bell System Technical Journal
Volume 10, Number 4, October, 1931

                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


The Bell System Technical Journal
Volume 11, Number 1, January, 1932

                  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

The Bell System Technical Journal
Volume 11, Number 2, April, 1932

                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

The Bell System Technical Journal
Volume 11, Number 3, July, 1932

              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

The Bell System Technical Journal
Volume 11, Number 4, October, 1932

          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


The Bell System Technical Journal
Volume 12, Number 1, January, 1933

               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

The Bell System Technical Journal
Volume 12, Number 2, April, 1933

            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

The Bell System Technical Journal
Volume 12, Number 3, July, 1933

                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

The Bell System Technical Journal
Volume 12, Number 4, October, 1933

            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


The Bell System Technical Journal
Volume 13, Number 1, January, 1934

                    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

The Bell System Technical Journal
Volume 13, Number 2, April, 1934

                  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

The Bell System Technical Journal
Volume 13, Number 3, July, 1934

               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

The Bell System Technical Journal
Volume 13, Number 4, October, 1934

                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


The Bell System Technical Journal
Volume 14, Number 1, January, 1935

                    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

The Bell System Technical Journal
Volume 14, Number 2, April, 1935

               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

The Bell System Technical Journal
Volume 14, Number 3, July, 1935

              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

The Bell System Technical Journal
Volume 14, Number 4, October, 1935

                   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


The Bell System Technical Journal
Volume 15, Number 1, January, 1936

              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

The Bell System Technical Journal
Volume 15, Number 2, April, 1936

               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

The Bell System Technical Journal
Volume 15, Number 3, July, 1936

                   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

The Bell System Technical Journal
Volume 15, Number 4, October, 1936

                      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


The Bell System Technical Journal
Volume 16, Number 1, January, 1937

                  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

The Bell System Technical Journal
Volume 16, Number 2, April, 1937

              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

The Bell System Technical Journal
Volume 16, Number 3, July, 1937

              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

The Bell System Technical Journal
Volume 16, Number 4, October, 1937

                    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


The Bell System Technical Journal
Volume 17, Number 1, January, 1938

                     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

The Bell System Technical Journal
Volume 17, Number 2, April, 1938

                 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

The Bell System Technical Journal
Volume 17, Number 3, July, 1938

               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

The Bell System Technical Journal
Volume 17, Number 4, October, 1938

              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


The Bell System Technical Journal
Volume 18, Number 1, January, 1939

                     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

The Bell System Technical Journal
Volume 18, Number 2, April, 1939

              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

The Bell System Technical Journal
Volume 18, Number 3, July, 1939

                 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

The Bell System Technical Journal
Volume 18, Number 4, October, 1939

               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