Contributors to this Issue 



Ralph Bown, M.E., 1913, M.M.E., 1915, Ph.D., 1917, Cornell 

 University, Captain Signal Corps, U. S. Army, 1917-19; Department of 

 Development and Research, American Telephone and Telegraph 

 Company, 1919-. Mr. Bown has been in charge of work relating to 

 radio transmission development problems. He is a Past President of 

 the Institute of Radio Engineers. 



John R. Carson, B.S., Princeton, 1907; E.E., 1909; M.S., 1912; 

 American Telephone and Telegraph Company, 1914-. Mr. Carson 

 is well known through his theoretical transmission studies and has 

 published extensively on electric circuit theory and electric wave 

 propagation. 



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 earlier 

 articles on Contemporary Physics form the nucleus of a recently pub- 

 lished book entitled "Introduction to Contemporary Physics" (D. 

 Van Nostrand Company). A recent article has been translated and 

 published in Germany under the title "Einleitung in die Wellen- 

 mechanik." 



William Fondiller, B.S., College of the City of New York, 1903; 

 E.E., Columbia University, 1909; M.A., Columbia University, 1913; 

 Engineering Department, Western Electric Co., Inc., 1909-25; Bell 

 Telephone Laboratories, Inc., 1925-. Mr. Fondiller's work has re- 

 lated to the development of transmission apparatus, such as loading 

 coils, filters, transformers, etc. and is now Assistant Director of Ap- 

 paratus Development of Bell Telephone Laboratories, Inc. In this 

 capacity he is responsible for the design of telephone apparatus and 

 investigations of materials. 



Norman R. French, A.B., University of Maine, 191-i; A.M., 1916; 

 Instructor, Physics Department, University of Maine, 1914-16; In- 

 structor, Princeton University, 1916-17; General Staff, A.E.F., 1917- 

 18; Commanding Officer, Flash and Sound Ranging Sections, Army 

 Engineers' School, A.E.F., 1918; American Telephone and Telegraph 

 Company, Department of Development and Research, 1919-. Mr. 

 French's work has related chiefly to loading, submarine cables and 



transmission quality. 



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