Contributors to this Issue 



H. W. Bode, A. B., Ohio State University, 1924; M.A., 1926; Ph.D., 

 Columbia University, 1935. Bell Telephone Laboratories, 1926-. 

 Dr. Bode has been engaged in the study of transmission networks, such 

 as wave filters, attenuation equalizers, and phase correctors. 



James A. Carr, B.S. in Electrical Engineering, Virginia Polytechnic 

 Institute, 1919; Instructor in Electrical Engineering at Massachusetts 

 Institute of Technology, 1920. American Telephone and Telegraph 

 Company, Development and Research Department, 1921 27; Bell 

 Telephone Laboratories, 1927-. Mr. Carr has been engaged prin- 

 cipally in outside plant development work. 



Karl K. Darrow, B.S., University of Chicago, 1911 ; University of 

 Paris, 1911-12; University of Berlirt, 1912; Ph.D., University of 

 Chicago, 1917. Western Electric Company, 1917-25; Bell Telephone 

 Laboratories, 1925-. Dr. Darrow has been engaged largely in writing 

 on various fields of physics and the allied sciences. 



C. O. Gibbon, B.S., Purdue University, 1914; M.S., Massachusetts 

 Institute of Technology, 1917; M.E.E., Harvard University, 1917; 

 Electrical Engineering Laboratory Assistant, Massachusetts Institute 

 of Technology and Harvard University, 1917-18. American Tele- 

 phone and Telegraph Company, Department of Operation and En- 

 gineering, 192 1-. First engaged in work on telegraph matters, Mr. 

 Gibbon has since 1925 been occupied principally with problems per- 

 taining to local transmission and in the preparation of engineering 

 data for the transmission design of the exchange plant. 



F. V. Haskell, B.S. in Electrical Engineering, Worcester Poly- 

 technic Institute, 1926. New York Edison Company, 1926-29. 

 Bell Telephone Laboratories, 1929-. Mr. Haskell has been engaged 

 principally in aerial systems work. 



Arthur W. Horton, Jr., A.B., Princeton University, 1920; E.E., 



Princeton University, 1922. Western Electric Company, Engineering 



Department, 1922-25; Bell Telephone Laboratories, 1925-. Mr. 



Horton has been engaged in work relating to the application of voice 



operated devices in the toll telephone plant and in studies of toll 



transmission. 



324 



