CONTRIBUTORS TO THIS ISSUE 245 



and Electronics Department, he has continued his research on vacuum 

 tubes, particularly those used in the microwave region. He is a Fellow 

 of the Institute of Radio Engineers and of the Physical Society in 

 London. 



Charles A. Lee, B.E.E., Rensselaer Polytechnic Institute, 1943; 

 Ph.D., Columbia University, 1953; Bell Telephone Laboratories, 1953-. 

 When Mr. Lee joined the Laboratories he became engaged in research 

 concerning solid state devices. In particular he has been developing 

 techniques to extend the frequency of operation of transistors into the 

 microwave range, including work on the diffused base transistor. During 

 World War II, as a member of the United States Signal Corps, he was 

 concerned with the determination and detection of enemy counter- 

 measures in connection with the use of proximity fuses by the Allies. 

 He is a member of the American Physical Society and the American 

 Institute of Physics. He is also a member of Sigma Xi, Tau Beta Pi 

 and Eta Kappa Nu. 



John R. Pierce, B.S., M.S. and Ph.D., California Institute of Tech- 

 nology 1933, 1934 and 1936; Bell Telephone Laboratories, 1936-. Ap- 

 pointed Director of Research — Electrical Communications in August, 

 1955. Dr. Pierce has specialized in Development of Electron Tubes and 

 Microwave Research since joining the Laboratories. During World War 

 li II he concentrated on the development of electronic devices for the 

 [I Armed Forces. Since the war he has done research leading to the develop- 

 ;j ment of the beam traveling- wave tube for which he was awarded the 

 h 1947 Morris Liebmann Memorial Prize of the Institute of Radio Engi- 

 [li neers. Dr. Pierce is author of two books: Theory and Design of Electron 

 Ij Beams, published in second edition last year, and Traveling Wave Tubes 

 il (1950). He was voted the ''Outstanding Young Electrical Engineer of 

 [| 1942" by Eta Kappa Nu. Fellow of the American Physical Society and 

 J the I.R.E. Member of the National Academy of Sciences, the A.I.E.E., 

 I Tau Beta Pi, Sigma Xi, Eta Kappa Nu, the British Interplanetary So- 

 il ciety, and the Newcomen Society of North America. 



C. F. QuATE, B.S., University of Utah 1944; Ph.D., Stanford Uni- 

 i versity 1950; Bell Laboratories 1950-. Dr. Quate has been engaged in 

 rj research on electron dynamics — the study of vacuum tubes in the 

 ;| microwave frequency range. He is a member of I.R.E. 



I David Slepian, University of Michigan, 1941-1943; M.A. and Ph.D., 

 li Harvard LTniversity, 1946-1949; Bell Telephone Laboratories, 1950-. Dr. 



