368 THE BELL SYSTEM TECHNICAL JOURNAL, MARCH 1954 



5 ACKNOWLEDGMENTS 



In carrying the development work described in this paper, I was helped 

 considerably by fellow engineers as well as men at various supervisory 

 levels of the Western Electric Company. In particular, I would like to 

 thank R. I. Neel for assistance in gathering experimental data at the 

 initial stages of this work, W. T. Eppler for his active part in confront- 

 ing operation of the system with production line conditions, and D. T. 

 Robb for encouragement and help given me during the development 

 work and in preparation of this paper. A special credit for providing a 

 mass of laborious statistical data concerning accuracy of the method in 

 actual manufacturing conditions belongs to J. L. O'Toole of Bell Tele- 

 phone Laboratories' group at Kearny. 



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