Contributors to this Issue 



J. R. Davey, B.S. in Electrical Engineering, University of Michigan, 1936. 

 During the war Mr. Davey was engaged in the development of H. F. radio 

 teletype systems, and has since been concerned with the development of 

 electronic telegraph circuits. 



H. T. Frhs, E.E., Royal Technical College, Copenhagen, 1916; Sc.D., 

 1938; Assistant to Professor P. D. Pedersen, 1916; Technical Advisor at the 

 Royal Gun Factory, Copenhagen, 1917-18; Fellow of the American Scandi- 

 navian Foundation, 1919; Columbia University, 1919. Western Electric 

 Company, 1920-25; Bell Telephone Laboratories, 1925-. Formerly as 

 Radio Research Engineer and since January 1946 as Director of Radio 

 Research, Dr. Friis has long been engaged in work concerned with funda- 

 mental radio problems. He is a Fellow of the Institute of Radio Engineers. 



Marion C. Gray, Edinburgh University, M.A., 1922; Bryn Mawr Col- 

 lege, Ph.D., 1926. Instructor in physics, Edinburgh University, 1926-27; 

 Research Assistant in Mathematics, Imperial College, London, 1927-30. 

 American Telephone and Telegraph Company, Department of Development 

 and Research, 1930-34; Bell Telephone Laboratories, 1934-. Dr. Gray has 

 been engaged mainly in mathematical work in the field of electromagnetic 

 theory. 



A. L. Matte, B.S. in Electrical Engineering, Massachusetts Institute of 

 Technology, 1909; Graduate Studies, M.I.T., 1912-13. New England 

 Investment and Securities Company, 1910-12; Detroit United Railways, 

 1913-18. American Telephone and Telegraph Company, Department of 

 Development and Research, 1918-34; Bell Telephone Laboratories, 1934-. 

 Mr. Matte has been engaged principally in transmission studies relating to 

 telegraphy. 



S. O. Rice, B.S. in Electrical Engineering, Oregon State College, 1929; 

 California Institute of Technology, 1929-30, 1934-35. Bell Telephone 

 Laboratories, 1930-. Mr. Rice has been concerned with various theoretical 

 investigations relating to telephone transmission theory. 



D. H. Ring, A.B., Stanford, 1929; Engineer, Stanford, 1930. Bell Tele- 

 phone Laboratories, 1930-. Mr. Ring has been engaged in radio research. 



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