Contributors to this Issue 



E. C. Wente, A.B., University of Michigan, 1911 ; S.B. in Electrical 

 Engineering, Mass. Inst, of Technology, 1914; Ph.D., Yale University, 

 1918; instructor in physics and mathematics. Lake Forest College, 

 1911-12; Engineering Department, Western Electric Company, 

 1914-16, 1918-24; Bell Telephone Laboratories, 1924-. Mr. Wente 

 has worked principally on general acoustic problems and on the 

 development of special types of acoustic devices. 



E. H. Bedell, S.B., Drury College, 1924; University of Missouri, 

 1924-25; Bell Telephone Laboratories, Inc., 1925-. Since coming to 

 the Laboratories Mr. Bedell has studied various acoustic problems, 

 notably those of an architectural character. 



John R. Carson, B.S., Princeton, 1907; E.E., 1909; M.S., 1912; 

 Research Department, Westinghouse Electric and Manufacturing 

 Company, 1910-12; instructor of physics and electrical engineering, 

 Princeton, 1912-14; American Telephone and Telegraph Company, 

 Engineering Department, 1914-15; Patent Department, 1916-17; 

 Engineering Department, 1918; Department of Development and 

 Research, 1919-. Mr. Carson is well known through his theoretical 

 transmission studies and has published extensively on electric circuit 

 theory and electric wave propagation. 



Paul P. Coggins, Harvard University, A.B. in Mathematics, 

 1920, A.M. in Physics, 1921; Department of Development and 

 Research, American Telephone and Telegraph Company, 1921-27. 

 Statistician, New Jersey Bell Telephone Company, October 192 7-. 

 Up to October 1, 1927, Mr. Coggins dealt with the application of the 

 mathematical theory of probabilities, including sampling theory, to 

 various telephone problems. 



W. J. Shackelton, B.S. in E.E., University of Michigan, 1909; 

 Western Electric Company, Manufacturing and Installation Depart- 

 ment, 1909-10; Bell Telephone Laboratories, 1910-. Mr. Shackel- 

 ton's principal activities have been in connection with the design of 

 loading coils and the development of methods of high frequency 

 measurement. 



J. G. Ferguson, B.S., University of California, 1915; M.S., 1916; 

 research assistant in physics, 1915-16; Bell Telephone Laboratories, 



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