Contributors to this Issue 



I. E. Fair, B.S. in Electrical Engineering, Iowa State College, 1929. 

 Bell Telephone Laboratories, Radio Research Department, 1929-. Mr. 

 Fair has been engaged in the study of piezoelectric crystals and crystal os- 

 cillators. 



C. W. Harrison, B.S. in Electrical Engineering, Purdue University, 

 1938; M.S., Lehigh L^niversity, 1940. Bamberger Broadcasting Service, 

 1939-41; Bell Telephone Laboratories, 1941-. Engaged in the develop- 

 ment of communication circuits. 



E. D. SuxDE, B.S., Haugesund, Norway, 1922; E.E., Darmstadt, Ger- 

 many, 1926. American Telephone and Telegraph Company, 1927-33; 

 Bell Telephone Laboratories, 1933-. Mr. Sunde has been engaged in 

 studies of interference in telephone circuits from power lines and railway 

 electrification and is now concerned with studies of protection of the tele- 

 phone plant against lightning damage. 



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