Contributions to this Issue 



Austin Bailey, A.B., University of Kansas, 1915; Ph.D., Cornell 

 University, 1920; Instructor in Physics, Cornell University, 1915-18; 

 Signal Corps, U.S.A., 1918-19; Assistant Professor of Physics, Uni- 

 versity of Kansas, 1921-22; Department of Development and Re- 

 search, American Telephone and Telegraph Company, 192 2-. Dr. 

 Bailey's work while with the American Telephone and Telegraph 

 Company has been largely along the line of methods for making radio 

 transmission measurements and of long wave radio problems. 



Edmond Bruce, B.S., Massachusetts Institute of Technology, 

 1924. Radio service, U. S. Navy, 1917-19. Western Electric Com- 

 pany, 1924-25; Bell Telephone Laboratories, 1925-. Mr. Bruce has 

 been engaged in the development of short-wave radio receivers and field- 

 strength measuring equipment. More recently he has specialized in 

 directive antenna systems for short-wave radio communication. 



Karl K. Darrow, B.S., University of Chicago, 1911; University 

 of Paris, 1911-12; University of Berlin, 1912; Ph.D., University of 

 Chicago, 1917: Western Electric Company, 1917-25; Bell Telephone 

 Laboratories, 1925-. Dr. Darrow has been engaged largely in writing 

 on various fields of physics and the allied sciences. Some of his earler 

 articles on Contemporary Physics form the nucleus of a book entitled 

 "Introduction to Contemporary Physics." 



Glenn D. Gillett. Studied at Pomona College; Har^-ard College, 

 A.B., 1919; Harvard Engineering School, S.B. in E.E., 1921. Depart- 

 ment of Development and Research, American Telephone and Tele- 

 graph Company, 1922-29, engaged in studies of radio field strength 

 distribution and allied problems. Radio Development Group, Bell 

 Telephone Laboratories, 1929-. Mr. Gillett has worked principally 

 on common frequency broadcasting problems. 



ThOxMAS a. McCanx, B.E.E., Ohio State University, 1925. De- 

 partment of Development and Research, American Telephone and 

 Telegraph Company, 1925-. Mr. McCann's work is chiefly in connec- 

 tion with printing telegraph systems. 



W. B. Snow, A.B., Stanford University, 1923; E.E., 1925. Engi- 

 neering Department, Western Electric Company, 1923-24. Acoustical 

 research. Bell Telephone Laboratories, 1925-. Mr. Snow has been 



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