778 THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1951 



J. T. Maupin, B.S. in E.E., University of Kentucky, 1947. U. S. Air Force, 

 1943-46. Bell Telephone Laboratories, 1947-. Except for one year in the 

 School for Communication Development Training, Mr. Maupin has been 

 engaged in research and development work on telephone cables. 



J. R. Pierce, B.S. in Electrical Engineering, California Institute of Tech- 

 nology, 1933; Ph.D., 1936. Bell Telephone Laboratories, 1936-. Dr. Pierce 

 has been engaged in the study of vacuum tubes. 



William J. Pietenpol, University of Colorado, B.S. in Electrical Engi- 

 neering, 1943; Radio Corporation of America, Lancaster, Pennsylvania, 

 1943^6. Ohio State University, 1946-49; Ph.D., 1949. Bell Telephone 

 Laboratories, 1950-. Dr. Pietenpol is engaged in Transistor development. 



H. H. Schneckloth, B.S. in Electrical Engineering, University of Minne- 

 sota, 1925. Western Electric Company, 1917-18; Northwestern Bell Tele- 

 phone Company, 1918-29; American Telephone and Telegraph Company, 

 Department of Development and Research, 1929-34; Bell Telephone Labo- 

 ratories, 1934-. Mr. Schneckloth 's work was in the manufacturing, mainten- 

 ance, and equipment engineering phases of telephone switching prior to 

 1929. Since then he has been engaged in switching systems engineering and 

 planning work. 



Thomas Shaw, S.B., Massachusetts Institute of Technology, 1905. Ameri- 

 can Telephone and Telegraph Company, Engineering Department, 1905-19; 

 Department of Development and Research, 1919-33. Bell Telephone Labora- 

 tories, 1933-48. Mr. Shaw's active telephone career was mainly concerned 

 with loading problems in telephone circuits, including the transmission and 

 economic features of the loading apparatus. The article now being published 

 was started shortly before his retirement in 1948. 



Robert Lee Wallace, Jr., University of Texas, B.A. in Physics and 

 Mathematics, 1936; M.A., 1939; Harvard University, 1939-45; Special 

 Research Associate in the field of military communications, 1941-45. Bell 

 Telephone Laboratories, 1946-. Mr. Wallace has been concerned with 

 problems in magnetic recordings and with Transistors. 



