CONTRIBUTORS TO THIS ISSUE 841 



graph Company, 1921-. Mr. Green has been engaged principally in 

 work on Hne transmission problems and multiplex transmission systems. 



R. G. McCuRDY, B.S., University of California, 1913; Technical 

 staff, Joint Committee on Inductive Interference of the Railroad 

 Commission of California, 1913-16; American Telephone and Tele- 

 graph Company, Engineering Department, 1916-19; Department of 

 Development and Research, 1919- ; Noise Prevention Engineer, 1930. 

 Mr. McCurdy's work has been chiefly on problems of inductive coor- 

 dination of telephone and power circuits. 



W. H. Martin, A.B., Johns Hopkins University, 1909; B.Sc, 

 Massachusetts Institute of Technology, 1911; American Telephone 

 and Telegraph Company, Engineering Department, 1911-19; De- 

 partment of Development and Research, 1919-. Mr. Martin's work 

 has related particularly to transmission of telephone sets and local 

 exchange circuits, transmission quality and loading. 



E. B. Payne, B.S. in E.E., Mass. Inst, of Technology, 1917; Ar- 

 tillery Corps, U. S. Army, 1917-18; Engineering Department, Western 

 Electric Company, 1919-25; Bell Telephone Laboratories, 1925-. 

 Mr. Payne has been engaged in loading coil design and more recently 

 concerned with the development of wave filters and allied transmission 

 networks. 



L.iss 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 Tele- 

 phone Laboratories 1930-. Mr. Peterson's work has been concerned 

 mostly with problems relating to inductive interference. 



R. R. Williams, B.S., University of Chicago, 1907, M.S., 1908 

 Research Chemist, Bureau of Science, Philippine Islands, 1908-15 

 Bureau of Chemistry, LT. S. Department of Agriculture, 1915-18 

 Engineering Department, Western Electric Company, 1918-25; Bell 

 Telephone Laboratories, 1925-. Mr. Williams has done extensive 

 research work on submarine cable insulation. Since 1925, as Chemical 

 Director, he has been in charge of the Chemical Laboratories of the 

 Research Department of the Bell Telephone Laboratories. 



W. J. Williams, C.E., Rensselaer Polytechnic Institute, 1905; 

 Assistant Engineer with Dr. W. L. Robb, 1905-06; Instructor in 

 Physics and Electrical Engineering, R.P.I., 1906-15; Professor of 

 Electrical Engineering, R.P.I., 1915-. Mr. Williams is a Consulting 

 Electrical Engineer and has been Technical Adviser for the National 

 Electric Light Association since 1923, on work of the Joint Subcom- 

 mittee on Development and Research of the N. E. L. A. and Bell 

 System. 



