764 THE BELL SYSTEM TECHNICAL JOURNAL, MAY 1956 



concentrated on the design of magnetic drum digital data storage ap- 

 paratus and circuits. He is a member of the A.I.E.E., a senior member 

 of the T.R.E., and is a licensed professional engineer. 



M. B. Prince, A.B., Temple University, 1947; Ph.D., Massachusetts 

 Institute of Technology, 1951; Bell Telephone Laboratories, 1951-1956; 

 National Semiconductor Products, 1956-. Between 1949-51 he was a 

 research assistant at the Research Laboratory of Electronics at M.LT, 

 where he was concerned with cryogenic research. At Bell Telephone 

 Laboratories, Dr. Prince was concerned with the physical properties of 

 semiconductors and semiconductor devices and was associated with the 

 development of silicon devices, including the Bell Solar Battery and the 

 silicon power rectifier. Dr. Prince is a member of the LR.E., the Ameri- 

 can Physical Society, and Sigma Xi. 



Howard Reiss, B.A., New York University, 1943; Ph.D., Columbia 

 University, 1949; Instructor and Assistant Professor in Chemistry, 

 Boston University, 1949-51; Head of the Fundamental Research Sec- 

 tion, Celanese Corporation, 1951-52; Bell Telephone Laboratories, 

 1952-. Dr. Reiss is engaged in the theoretical chemistry of defects in 

 semiconductors. He is a member of the American Chemical Society, 

 the American Physical Society, Sigma Xi and Phi Lamda Upsilon. 



Baldwin Sawyer, B.E., Yale University, 1943; D.Sc, Carnegie Insti- 

 tute of Technology, 1952; Manhattan Project, University of Chicago, 

 1943-1946; Instructor and Research Associate in Physics, Carnegie In- 

 stitute of Technology, 1948-1951; Bell Telephone Laboratories, 1951- 

 Dr. Sawyer's first work at the Laboratories was on the development of 

 semiconductor devices, especially the silicon alloy junction diode. Since 

 1953 he has been in charge of a group at Allentown concerned with the 

 growth, measurement and characterization of germanium and silicon 

 crystals for use in semiconductor devices. He is a member of the Ameri- 

 can Physical Society, the American Institute of Mining and Metallurgi- 

 cal Engineers, Tau Beta Pi, Sigma Xi, and an associate of the LR.E. 



Donald E. Thomas, B.S. in E.E., Pennsylvania State University, 

 1929; M.A., Columbia LTniversity, 1932; Bell Telephone Laboratories, 

 1929-. Mr. Thomas specialized in the development of repeatei'ed sub- 

 marine cable systems until 1940 when he became engaged in the de\'elop- 

 ment of sea and airborne radar. In 1942 he entered military service where 

 he was active in electronic countermeasures research and development. 



