822 THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1952 



graph Development Engineer, he is in charge of the development of tele- 

 graph and telephotograph systems. Senior member of I.R.E. and member 

 of A.I.E.E. and Phi Beta Kappa. 



L. C. Roberts, A.B., Harvard University, 1916; B.S. in E.E., Harvard 

 University, 1919; B.S. in E.E., Massachusetts Institute of Technology, 

 1918; American Telephone and Telegraph Company, 1917-34; Bell 

 Telephone Laboratories, 1934-. Mr. Roberts has been primarily concerned 

 with the development of dc and carrier telegraph except during World 

 War II when he worked on multichannel and single-channel radio tele- 

 typewriter developments. Member of A.I.E.E. 



S. A. ScHELKUNOFF, B.A., M.A. in Mathematics, The State College 

 of Washington, 1923; Ph.D. in Mathematics, Columbia University, 

 1928. Engineering Department, Western Electric Company, 1923-25; 

 Bell Telephone Laboratories, 1925-26. Department of Mathematics, 

 State College of Washington, 1926-29. Bell Telephone Laboratories, 

 1929-. Dr. Schelkunoff has been engaged in mathematical research, 

 especially in the field of electromagnetic theory. 



