Contributors to this Issue 



M. 'SI. Atalla, B.S., Cairo University, 1945; M.S., Purdue University, 

 1947; Ph.D., Purdue University, 1949; Studies at Purdue undertaken as 

 the result of a scholarship from Cairo University for four years of gradu- 

 ate work. Bell Telephone Laboratories, 1950-. For the past three years 

 he has been a member of the Switching Apparatus Development De- 

 partment, in which he is super\'ising a group doing fundamental research 

 work on contact physics and engineering. Current projects include 

 fundamental studies of gas discharge phenomena between contacts, 

 their mechanisms, and their physical effects on contact behavior; also 

 fundamental studies of contact opens and resistance. In 1950, an article 

 bj^ him was awarded first prize in the junior member category of the 

 A.S.INI.E. He is a member of Sigma Xi, Sigma Pi Sigma, Pi Tau Sigma, 

 the American Physical Society, and an associate member of the A.S.M.E. 



\ James M. Early, B.S., cum laude. New York State College of Fores- 

 try, 1943; M.S. and Ph.D. Ohio State University, 1948 and 1951. Bell 

 Telephone Laboratories 1951-. After teaching Electrical Engineering at 

 Ohio State L'^niversity for five years while studying for his Master's and 

 Ph.D. degrees. Dr. Early joined an electronic apparatus development 

 group, participating in the development of the junction transistor. At 

 present he is doing general theoretical work as well as development work 

 on high frequency junction transistors. Member of the I.R.E. and Eta 

 Kappa Nu. Associate of Sigma Xi. 



Walter T. Eppler, B.S., in E.E., Tufts College, 1927; Western 

 Electric Company, purchase of special machinery and development of 

 coil manufacture, 1927-1932; Crystal Golf Ball Company, Superin- 

 tendent of Manufacture, 1933-1936; New Haven Clock Company, 

 1936-1937; Western Electric Company, 1937-. In 1941, he engineered a 

 conveyorized dispatch control system for key assembly at the Kearny 

 plant. For the past six years, he has been engaged in cable sheath en- 

 gineering on Alpeth and Stalpeth cable. Member of New Jersey Society 

 of Professional Engineers. 



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