Contributors to this Issue 



Leonard Gladstone Abraham, B.S., 1922, M.S., 1923, University 

 of Illinois. American Telephone and Telegraph Company, Depart- 

 ment of Development and Research, 1923-34; Bell Telephone Labora- 

 tories, 1934-. Mr. Abraham has been engaged in transmission de- 

 velopment work on toll telephone systems. 



Austin Bailey, A.B., University of Kansas, 1915; Ph.D., Cornell 

 University, 1920; Instructor in Physics, Cornell University, 1915-18; 

 Signal Corps, U. S. A., 1918-19; Assistant Professor of Physics, 

 University of Kansas, 1921-22. American Telephone and Telegraph 

 Company, Department of Development and Research, 1922-34; Bell 

 Telephone Laboratories, 1934-. Dr. Bailey's work has been largely 

 along the line of methods for making radio transmission measurements 

 and of long-wave radio problems. 



F. A. GiFFORD, B.S., Tufts College, 1920. General Electric Com- 

 pany, Lynn, Massachusetts, 1920-22; American Radio and Research 

 Corporation, Medford, Massachusetts, 1922; New England Telephone 

 and Telegraph Company, Engineering Department, Boston, 1922-. 

 Mr. Gifford has been engaged on various types of telephone engineer- 

 ing work, devoting a large part of his time during the past four years 

 to problems in connection with the Boston Marine Radio Telephone 

 Service. 



Earl B. Hansen, B.S. in Electrical Engineering, University of 

 California, 1920. Pacific Telephone and Telegraph Company, 1920 

 to present date. Latterly, Mr. Hansen's duties have been in the field 

 of toll transmission. 



H. E. Haring, B.S,, Franklin and Marshall College, 1916; M.A., 

 Princeton University, 1917. Assistant Chemist, Ordnance Depart- 

 ment, U. S, Army, 1917-19; Associate Chemist, U. S. Bureau of 

 Standards, 1919-28; Electrochemist, Victor Talking Machine Com- 

 pany, 1928-29; Bell Telephone Laboratories, 1929-. Since 1919 Mr. 

 Haring has been engaged in electrochemical research in connection 

 with storage batteries and other electrochemical apparatus, electro- 

 deposition, and corrosion. 



H. R. Huntley, B.S., University of Wisconsin, 1921. Wisconsin 

 Telephone Company, Engineering Department, 1917-30; American 



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