Contributors to this Issue 



F. L. Riiouiis, S.B., Massaclui^cits Institute of Technology, 1892; 

 American Bell Telephone Company; Outside Plant Engineer, Ameri- 

 can Telephone and Telegraph Company, 1900-19; Outside Plant 

 Development Engineer, 1919 — . Mr. Rhodes has had an active part 

 in the development and standardization of materials, apparatus and 

 practices employed in the underground and overhead wire plant 

 of the Bell S\stcm. He has written many articles, among which 

 may be mentioned those on "The Telephone" in the EncNclopedia 

 Americana and Nelson's Encyclopedia. 



Gkorgk Crisson, M.E., Stevens Institute of Technolog\-, 190G; 

 instructor in Electrical Engineering, 1900-10. American Telephone 

 and Telegraph Company, Engineering Department, outside plant 

 division, 1910-14; transmission and protection division, 1914-19; 

 De\elo[)ment and Research Department, transmission development 

 division, 1919—. 



\V. II. II.\Ki)i:.\, B.E.E., University of Michigan, 1912; Engineering 

 Department, American Telephone and Telegraph Company, 1912- 

 1919; Department of Operation and Engineering, 1919 — . Mr. 

 Harden has been engaged in the development of transmission main- 

 tenance testing methods and in the preparation of routines and 

 practices rer|uire(l for ai3[)l\ing these nielhods in the telephone plant. 



K. S. Joii.xsoN, A.B., Harvard University, 1907; Graduate School 

 of Applied Arts and Sciences, 1907-09; Engineering Department of 

 the American Telephone and Telegraph Company, 1909-13; Engi- 

 neering Department, Western Electric Co., Inc., 1913-24; Bell Tele- 

 phone Laboratories, Inc., 1925 — . Mr. Johnson's work has related 

 especially- to the theoretical aspects of telephone and telegraph trans- 

 mission. 



TiMOTiiv E. SiiE.\, S.M., Massachusetts Institute of Technology-, 

 1919; instructor in Electrical Engineering and Physics, 1918 20; 

 Manufacturing Deixtrtment, Western Electric Comi:)any, 1920-21; 

 luigineering Deiiarlment, 1921 24; .Apparatus Development Depart- 

 ment, Boll Telephone Laboratories, 1925 — . Mr. Shea has been 

 principall)' engaged in the development of electric wave filters and 

 allied apparatus. 



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