CONTRIBUTORS TO THIS ISSUE 705 



E. Peterson, Cornell University, 1911-14; Brooklyn Polytechnic, 

 E.E., 1917; Columbia, A.M., 1923; Ph.D., 1926; Electrical Testing 

 Laboratories, 1915-17; Signal Corps, U. S. Army, 1917-19. Bell 

 Telephone Laboratories, 1919-. Dr. Peterson's work has been largely 

 in theoretical studies of carrier current apparatus. 



Liss C. Peterson, E.E., Chalmers Technical Institute, Gothenburg, 

 1920; Technische Hochschule, Charlottenburg, 1920-21; Technische 

 Hochschule, Dresden, 1921-22; Signal Corps, Swedish Army, 1922-23. 

 American Telephone and Telegraph Company, 1925-30 ; Bell Telephone 

 Laboratories, 1930-. Mr. Peterson is engaged in the study of modula- 

 tion and other problems connected with high frequency carrier systems. 



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. 



M. E. Strieby, A.B., Colorado College, 1914; B.S., Harvard, 1916; 

 B.S. in E.E., M.LT., 1916; New York Telephone Company, Engineer- 

 ing Department, 1916-17; Captain, Signal Corps, U. S. Army, 

 A. E. P., 1917-19. American Telephone and Telegraph Company, 

 Department of Development and Research, 1919-29; Bell Telephone 

 Laboratories, 1929-. Mr. Strieby has been associated with various 

 phases of transmission work, more particularly with the development 

 of long toll circuits. At the present time, in his capacity as Carrier 

 Transmission Research Engineer, he directs studies of new and im- 

 proved methods of carrier frequency transmission over existing or new 

 facilities. 



L. A. Ware, B.E., Engineering College, University of Iowa, 1926; 

 M.S., University of Iowa, 1927; PhD., Physics Department, University 

 of low^a, 1930. Instructor in Physics, University of Iowa, 1926-29. 

 Bell Telephone Laboratories, 1929-. Dr. Ware's work has been chiefly 

 in connection with regenerative amplifier development. 



