474 



BELL SYSTEM TECHNICAL JOURNAL 



2. " Echo Suppressors for Long Telephone Circuits," A. B. Clark and R. C. Mathes, 

 A.I.E.E., Jour., Vol. 44, No. 6, June, 1925, pp. 618-626; Elec. Commun., 

 Vol. 4, No. 1, July, 1925, pp. 40-50; A.I.E.E., Trans., Vol. 44, 1925, pp. 

 481^90. 



v3. "The New York-London Telephone Circuit," S. B. Wright and H. C. Silent, 

 Bell Sys. Tech. Jour., Vol. 6, No. 4, October, 1927, pp. 736-749. 



4. "Echo Elimination in Transatlantic Service," G. C. Crawford, Bell Lab. Record, 



Vol. 5, No. 3, November, 1927, pp. 80-84. 



5. "Bridge for Measuring Small Time Intervals," J. Herman, Bell Sys. Tech. Jour., 



Vol. 7, No. 2, April, 1928, pp. 343-349. 



6. "Problems in Power-Line Carrier Telephony," W. B. Wolfe and J. D. Sarros, 



A.I.E.E., Jour., Vol. 47, No. 10, October, 1928, pp. 727-731 ; ^.7.£.E., Trans., 

 Vol.48, 1929, pp. 107-113. 



7. "A Carrier Telephone System for Power Lines," C. F. Boeck, Bell Lab. Record, 



Vol. 7, No. 11, July, 1929, pp. 451-458. 



8. "Voice-Frequency Equipment for the Transatlantic Radio Telephone," J. A. 



Coy, Bell Lab. Record, Vol. 8, No. 1, September, 1929, pp. 15-20. 



9. "Effects of Phase Distortion on Telephone Quality," J. C. Steinberg, Bell Sys. 



Tech. Jour., Vol. 9, No. 3, July, 1930, pp. 550-556. 



10. "Electrical Delay Circuits for Radio Telephony," R. T. Holcomb, Bell Lab. 



Record, Vol. 9, No. 5, January, 1931, pp. 229-232. 



11. "Acoustic Delay Circuits," W. P. Mason, Bell Lab. Record, Vol. 9, No. 9, Mav, 



1931, pp. 430-432. 



12. "The Time Factor in Telephone Transmission," O. B. Blackwell, Bell Sys. Tech. 



Jour., Vol. 11, No. 1, January, 1932, pp. 53-66; Bell Lab. Record, Vol. 10, No. 5, 

 January, 1932, pp. 138-143; A.LE.E., Trans., Vol. 51, 1932, pp. 141-147. 

 Elec. Engg., Vol. 50, No. 10, October, 1931, pp. 902-903 (Abstract). 



13. "Two-Way Radio Telephone Circuits," S. B. Wright and D. Mitchell, Bell Sys. 



Tech. Jour., Vol. 11, No. 3, July, 1932, pp. 368-382; LR.E., Proc, Vol. 20, 

 No. 7, July, 1932, pp. 1117-1130. 



14. "A Telephone System for Harbor Craft," W. K. St. Clair, Bell Lab. Record, 



Vol. 11, No. 3, November, 1932, pp. 62-66. 



15. "Voice Frequency Control Terminals for Caribbean Radio Systems," W. A. 



MacMaster, Bell Lab. Record, Vol. 11, No. 12, August, 1933, pp. 369-374. 



16. "Certain Factors Limiting the Volume Efficiency of Repeatered Telephone 



Circuits," L. G. Abraham, Bell Sys. Tech. Jour., Vol. 12, No. 4, October, 

 1933, pp. 517-532. 



17. "The 'Compandor' — An Aid Against Static in Radio Telephony," R. C. Mathes 



and S. B. Wright, Elec. Engg., Vol. 53, No. 6, June, 1934, pp. 860-866; Bell 

 Sys. Tech. Jour., Vol. 13, No. 3, July, 1934, pp. 315-332. 



18. "The Voice-Operated Compandor," N. C. Norman, Bell Lab. Record., Vol. 13, 



No. 4, December, 1934, pp. 98-103. 



19. "Ship-to-Shore Radio in Puget Sound Area," E. B. Hansen, Elec. Engg., Vol. 54, 



No. 8, August, 1935, pp. 828-831. 



20. "Marine Radio Telephone Service," F. A. Gifford and R. B. Meader, Commun. & 



Broadcast Engg., Vol. 2, No. 10, October, 1935, pp. 9-11, 15. Tech. Digest in 

 Bell Sys. Tech. Jour., Vol. 14, No. 4, October, 1935, pp. 702-707. 



21. "A Noise Reducer for Radio Telephone Circuits," N. C. Norman, Bell Lab. 



Record, Vol. 15, No. 9, May, 1937, pp. 281-285. 



22. "Radio Telephone Noise Reduction by Voice Control at Receiver," C. C. 



Taylor, this issue of Bell Sys. Tech. Jour.; Elec. Engg., August, 1937. 



