754 BELL SYSTEM TECHNICAL JOURNAL 



ing Department, American Telephone and Telegraph Company, 1911, 

 and Department of Development and Research, 191 1-. Mr. Young 

 has been in charge of Power Development work since 1911. 



S. B. Wright, M.E. in E.E., Cornell University, 1919; Department 

 of Development and Research, American Telephone and Telegraph 

 Company, 1919-. Mr. Wright has been engaged in transmission 

 development work on long distance voice frequency telephone circuits. 



H. C. Silent, E.E., Cornell University, 1921; Department of De- 

 velopment and Research, American Telephone and Telegraph Com- 

 pany, 1921-. Mr. Silent has been associated with the development 

 work on voice-operated switching devices, and spent some time in 

 England in connection with their application to the New York-London 

 telephone circuit. 



Walter A. Shewhart, A.B., University of Illinois, 1913; A.M., 

 1914; Ph.D., University of California, 1917; Engineering Department, 

 Western Electric Company and Bell Telephone Laboratories, 1918-. 

 Mr. Shewhart is making a special study of the application of probability 

 theories to inspection engineering. 



