1208 THE BELL SYSTEM TECHNICAL JOURNAL, SEPTEMBER 1954 



electron d3aiamics and solid state physics research. His current work is 

 in the applied physics of solids. Member of the American Institute of 

 Phj^sics and Fellow of the American Physical Society. 



Laurence R. Walker, B.Sc. and Ph.D., McGill University, 1935 

 and 1939; University of California, 1939-41. Radiation Laboratory, 

 INIassachusetts Institute of Technology, 1941-1945; Bell Telephone 

 Laboratories, 1945-. Dr. AValker has been primarily engaged in research 

 on microwave oscillators and amplifiers. At present he is a member of 

 the physical research group concerned with the applied physics of solids. 

 Fellow of the American Physical Society. 



