264 BELL SYSTEM TECHNICAL JOURNAL 



15. Clifford N. Anderson, "Solar disturbances and transatlantic radio transmission,' 

 Proc. L R. E., 17, 1528-1535, September, 1929. 



16 S. W. Dean, "Weather phenomena and directional observations of atmos- 

 pherics," Proc. L R. E., 18, 1185-1192, July, 1929. 



17. R. A. Heising, J. C. Schelleng, and G. C. Southworth, "Some measurements 



of short-wave transmission," Proc. 1. R. E.., 613, 649, October, 1926. 



18. J. C. Schelleng, "Some problems in short-wave telephone transmission," Proc. 



I. R. E., 18, 913, June, 1930. 

 19 R. K. Potter, "Transmission characteristics of a short-wave telephone circuit," 

 Proc. I. R. E., 18, 581, April, 1930. 



20. H. W. Nichols and Lloyd Espenschied, "Radio extension of the telephone 



system to ships at sea," Proc. I. R. E., 193-243, June, 1923. 



21. A. E. Harper, "Directional distribution of static," Proc. I. R. E., 17, 1214- 



1225, July, 1929. 



22. W. Wilson and L. Espenschied, "Radiotelephone service to ships at sea," Jour. 



A. I.E. E., 49, 542, July, 1930. 



23. T. G. Miller, "Transoceanic telephone service — general aspects," Jo7tr. A. I. 



E. E., 49, 107, February, 1930. 

 24 Ralph Bown, "Transoceanic telephone service — -short-wave transmission," Jour. 

 A. I.E. E., 49, 385, May, 1930. 



25. A. A. Oswald, "Transoceanic telephone service — -short-wave equipment," Jour. 



^. 7. £. £., 49, 267, April, 1930. 



26. F. A. Cowan, "Transoceanic telephone service — short-wave stations," Jour. 



A. I. E. E. (forthcoming). 



27. P. Craemer, "Der Weltfernsprechverkehr," E. T. Z., 50, 959-963, July, 1929. 



28. P. Craemer, "The geographical implications of the world telephone network," 



Paper No. 206, World Engineering, Congress, Tokio, 1929. 



29. E. H. Shaughnessy, "Rugby radio station," Jour. P. 0. E. E., 19, 373-382, 



January, 1927; El. Rev., 98, 753-756, May 7, 14, 21, 1926; Elect., 96, 468-469, 

 April 23, 1926. 



30. A. G. Lee, "Transatlantic telephony," Jour. Tel. & Tel., 13, 92-93, February, 



1927; Jour. P. 0. E. E., 19, 74-75, April, 1926; Jour. Tel. & Tel, 12, 150-151, 

 April, 1926. 



31. R. V. Hansford, "London-New York telephone circuit," Jour. P. 0. E. E., 20, 



55-64, April, 1927. 



32. T. F. Purves, "Ship and shore telephony," Electrician, 104, 516-517, April 25, 



1930. 



33. T. F. Purves, "Ship-shore radiotelephony," El. Rev. (London), 106, 865-866, 



929-930, May 9-16, 1930. 



34. A. S. Angwin, "Ship-and-shore terminal equipment," Electrical Communication, 



9, 56-61, July, 1930. 



35. T. F. Purves, "Inaugural address," Jour. I. E. E., 68, No. 396, pp. 1-16, Decem- 



ber, 1929. 



