Contributors to this Issue 



Sidney Darlington, Harvard University, B.S. in Physics, 1928; Massa- 

 chusetts Institute of Technology, B.S. in E.E., 1929; Columbia University, 

 Ph.D. in Physics, 1940. Bell Telephone Laboratories, 1929-. Dr. Darlington 

 has been engaged in research in applied mathematics, with emphasis on 

 network theory. 



Richard C. Eggleston, Ph.B., 1909 and M.F., 1910, Yale University; 

 U. S. Forest Service, 1910-1917; Pennsylvania Railroad, 1917-1920; First 

 Lieutenant, Engineering Div., Ordnance Dept., World War I, 1918-1919. 

 American Telephone and Telegraph Company, 1920-1927; Bell Telephone 

 Laboratories, 1927-. Mr. Eggleston has been engaged chiefly with problems 

 relating to the strength of timber and with statistical investigations in the 

 timber products field. 



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

 Technology, 1933; Ph.D., 1936. Bell Telephone Laboratories, 1936-. En- 

 gaged in study of vacuum tubes. 



S. O. Rice, B.S. in Electrical Engineering, Oregon State College, 1929; 

 California Institute of Technology, 1929-30, 1934-35. Bell Telephone Lab- 

 oratories, 1930-. Mr. Rice has been concerned with various theoretical 

 investigations relating to telephone transmission theory. 



J. M. Richardson, B.S., California Institute of Technology, 1941; Ph.D., 

 Cornell, 1944. Bell Telephone Laboratories, 1945-49. Dr. Richardson at 

 these Laboratories had been mainly associated with studies of ferroelectric 

 materials, noise contacts, and contact erosion. At present he is with the 

 Bureau of Mines at Pittsburgh. 



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