Contributors to this Issue 



H. J. McSkimin, B.S. in Electrical Engineering, University of Illinois, 

 1937; M.S. in Physics, New York University, 1940. Bell Telephone Labo- 

 ratories, 1937-. Engaged primarily in a study of electrical and electro- 

 mechanical properties of piezoelectric crystals. 



E. E. MoTT, Massachusetts Institute of Technology, B.S. 1927; M.S. 1928. 

 General Electric Company, 1926-28. Bell Telephone Laboratories, 1928-. 

 Mr. Mott has been engaged in telephone instruments research and devel- 

 opment, particularly in connection with various types of telephone receivers 

 and related devices. Since 1941 he has been engaged on war projects. 



A. M. Skellett, A.B., 1924, M.S., 1927, Washington University; Ph.D., 

 Princeton University, 1933; Instructor, 1927-28, Assistant Professor of 

 Physics, 1928-29, Un versity of Florida. Bell Telephone Laboratories 

 1929-. Dr. Skellett, formerly engaged in investigations pertaining to the 

 transatlantic radio telephone, is concerned with applications of electronic 

 and ionic phenomena. 



R. A. Sykes, Massachusetts Institute of Technology, B.S. 1929; M.S. 

 1930. Columbia University, 1931-1933. Bell Telephone Laboratories, Re- 

 search Department, 1930-. Mr. Sykes has been engaged in the applications 

 of quartz crystals to broad-band carrier systems as filter and oscillator 

 elements. Other work has included the application of coaxial lines as ele- 

 ments of filter networks and more recently the design and development of 

 quartz crystals for radio frequency oscillators. 



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