590 THE BELL SYSTEM TECHNICAL JOUHXAL, MARCH 1957 



meiit, design of transmission equipment for the armed forces, and toll 

 transmission systems. He served as a technical observer with the U. S. 

 Armj^ in the European theater. He is now Systems Development En- 

 gineer at the IMerrimack Vallej' Laboratory with responsibility for voice 

 frequenc}'^, broadband carrier, short haul carrier and rural carrier sys- 

 tems. ]\Iember of the A.I.E.E. 



John R. Pierce, B.S., 1933, M.S., 1934 and Ph.D., 1936, California 

 Institute of Technology; Bell Telephone Laboratories, 1936-. Director 

 of Research in Electrical Communications at Bell Telephone Labora- 

 tories. He has specialized in the development of electron tubes, micro- 

 w^ave research, electronic devices for military applications, and com- 

 munications circuits. Dr. Pierce has been granted 55 patents and is the 

 author of three books. For his research leading to the development of 

 the beam traveling wave tube, he was awarded the 1947 INIorris Lieb- 

 mann jMemorial Prize of the L R. E. He was voted the "Outstanding 

 Young Electrical Engineer of 1942" by Eta Kappa Nu. Member of 

 National Academy of Sciences, British Interplanetary Society, A.I.E.E., 

 Sigma Xi, Tau Beta Pi and Eta Kappa Xu. Fellow of American Physical 

 Society and I.R.E. 



John H. Rowen, B.E.E., 1948 and M.Sc, 1951, Ohio State Univer- 

 sity. Mr. Rowen worked at the Antenna Laboratory of the Ohio State 

 University Research Foundation in Columbus, 0. from 1948 to 1951. 

 He joined Bell Telephone Laboratories in 1951, shortly after being 

 awarded his master's degree. Since then J\Ir. Rowen has specialized in 

 the applied physics of solids, and the development of microwave ferrite 

 devices. He is a member of the Solid State Device Development Depart- 

 ment at the Murra}' Hill Laboratory. Mr. Rowen is a member of the 

 Institute of Radio Engineers and of Eta Kappa Nu. 



Harold Seidel, B.E.E., 1943, College of the City of New York; 

 :\I.E.E., 1947 and D.E.E., 1954, Polytechnic Institute of Brooklyn; 

 Microwave Research Institute of Polytechnic Institute of Brooklyn, 

 1947; Arma Corp., 1947-48; Federal Telecommunications Laboratories, 

 1948-53; Bell Telephone Laboratories, 1953-. He has been concerned 

 with general electromagnetic problems, especially regarding wave-guide 

 applications, and with analj'sis of microwave ferrite devices. Member of 

 Sigma Xi and I.R.E. 



Milton Sobel, B. S., 1940, College of the City of New York; M.A., 

 1946 and Ph.D., 1951, Columbia I^niversity; U. S. Census Bureau, stat- 



