Contributors to This Issue 



Wallace A. Depp, B.S. in Electrical Engineering, University of Illinois, 

 1936; M.S. 1937. Bell Telephone Laboratories, 1937-. Mr. Depp has 

 been primarily engaged in the development of gas filled tubes. 



Frederick S. Goucher, A.B., Acadia University, 1909; A.B., Yale Uni- 

 versity, 1911; M.A.Yale, 1912; Ph.D. in physics, Columbia University, 1917; 

 D.Sc. (Hon.), Acadia University, 1934, Engineering Department, Western 

 Electric Co., 1917-18; Research, University College, London, 1919; Research 

 Laboratories, General Electric Co., Ltd., England, 1919-26; Bell Telephone 

 Laboratories, 1926-. In the Physical Research Department engaged in a 

 fundamental study of contacts with reference to carbon microphones and 

 switching apparatus, and during the war in the development of switching 

 devices used in radar. 



Robert E. Graham, B.S. in E.E., Purdue University, 1937. Mr. Graham 

 joined the technical staff of the Bell Telephone Laboratories in 1937, and 

 has since been engaged in television research. During the war period he 

 worked on radar and automatic tracking problems. 



J. R. Hayxes, B.S. in physics, University of Kentucky, 1930. Bell Tele- 

 phone Laboratories, 1930-. In the Physical Research Department engaged 

 in contact studies and during the war the development of switching devices 

 used in radar. 



E. Peterson, Cornell University, 1911-14; Brooklyn Polytechnic, E.E., 

 1917; Columbia University, M.A., 1923, Ph.D., 1926; Lecturer in Electrical 

 Engineering, 1934-40. Electrical Testing Laboratories, 1915-17; Signal 

 Corps, U. S. Army, 1917-19; Western Electric Company, Engineering De- 

 partment, 1919-25; Bell Telephone Laboratories, 1925-. Dr. Peterson's 

 work has dealt with non-linear circuits and circuit elements. 



Snyder C. Rappleye, War Alumnus, Cornell University, 1919; New York 

 Telephone Company, 1921-1923; Traffic Division of Operation and Engi- 

 neering Department, American Telephone and Telegraph Company since 

 1923. Recently Mr. Rappleye has been working on intertoll trunk engineer- 

 ing methods. 



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