Contributors to this Issue 



A. Eugene Anderson, B.Sc. in E.E., Ohio State University, 1939; 

 M.Sc, Ohio State University, 1939. U. S. Army, 1942-46. Bell Telephone 

 Laboratories, 1939-. Mr. Anderson is concerned with the development 

 of semi-conductor devices, including the transistor. In the past he has 

 been engaged in microwave electron tube and electron beam tube de- 

 velopment. Member of I. R. E., Tau Beta Pi, Sigma Xi, Eta Kappa Nu, 

 and Sigma Pi Sigma. 



Arthur C. Keller. B.S., Cooper Union, 1923; M.S., Yale University, 

 1925; E.E., Cooper Union, 1926; Columbia University, 1926-30; Western 

 Electric Company, 1917-25; Bell Telephone Laboratories, 1925-. Special 

 Apparatus Development Engineer, 1943; Switching Apparatus Develop- 

 ment Engineer, 1946; Assistant Director of Switching Apparatus De- 

 velopment, 1949; Director of Switching Apparatus Development, 1949-. 

 Mr. Keller's experience in the Bell System includes development and de- 

 sign of telephone instruments ; development of systems and apparatus for 

 recording and reproducing sound; and, during World War II, the de- 

 velopment, design, and preparation for manufacture of sonar systems 

 and apparatus. His department, in addition to being responsible for a 

 number of military projects, is responsible for the fundamental studies of 

 switching apparatus and the development, design, and preparation for 

 manufacture of electromagnetic and electromechanical switching appara- 

 tus for telephone systems. Member of the American Physical Society, 

 A. I. E. E., Acoustical Society of America, I. R. E., S. M. P. T. E., and 

 the Yale Engineering Association. Representative for Bell Telephone 

 Laboratories in the Society for Experimental Stress Analysis. For his 

 contributions to the Navy during World War II, he received awards from 

 the Bureau of Ships and the Bureau of Ordnance. 



Samuel P. Morgan, Jr., B.S., California Institute of Technology, 

 1943; M.S., Cahfornia Institute of Technology, 1944; Ph.D., California 

 institute of Technology, 1947. Bell Telephone Laboratories, 1947-. A 

 research mathematician, Dr. INIorgan specializes in electromagnetic the- 

 ory. He has been particularly concerned with problems of wave guide and 

 coaxial cable transmission. Member of the American Phj^sical Society, 

 Tau Beta Pi, and an associate member of Sigma Xi. 



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