Contributors to this Issue 



Frank R. Dickinson, B.S., Union College, 1927. Bell Telephone 

 Laboratories, 193 1-. Mr. Dickinson has been primarily concerned with 

 the development of carrier telephony and is currently working on the L3 

 carrier system. During World War II he was engaged in the development 

 of airborne radar bombsights. Member of Eta Kappa Nu. 



H. F. Dodge, S.B., Massachusetts Institute of Technology, 1916; 

 Instructor, Electrical Engineering, 1916-17; A.M., Columbia Univer- 

 sity, 1922; Engineering Department, Western Electric Company, 1917- 

 25; Bell Telephone Laboratories, 1925-. Mr. Dodge was associated with 

 the development of submarine detection apparatus, telephone trans- 

 mitters and electro-acoustic devices until 1924. He then joined the newly 

 organized Quality Assurance Department and as Quality Results En- 

 gineer has been concerned with the development and application of 

 sampling inspection methods, quality control techniques, and quality 

 rating plans based on statistical methods. His group is also responsible 

 for the preparation of Laboratories Inspection Practices. Consultant to 

 Secretary of War, 1942-44. Shewhart Medal, American Society for 

 Quality Control, 1949. Award of Merit, American Society for Testing 

 Materials, 1950. Member of American Society for Testing Materials; 

 Fellow of American Society for Quality Control, American Statistical 

 Association, and Institute of Mathematical Statistics. Chairman of the 

 American Standards Association Committee Zl on Quality Control, 

 the American Society for Testing Materials Committee E-11 on Quality 

 Control of Materials, and the Standards Committee of the American 

 Society for Quality Control. Co-author with H. G. Romig of Sampling 

 Inspection Tables (John Wiley and Sons, 1944). Member of editorial 

 board of Industrial Quality Control. 



R. D. Ehrbar, B.E., Johns Hopkins University, 1937. Bell Telephone 

 Laboratories, 1937-. Mr. Ehrbar is in charge of equipment design and 

 field operations related to the development of the L3 coaxial system. 

 During World War II he worked on radar development for the Signal 

 Corps. Member of the Institute of Radio Engineers and Tau Beta Pi. 



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