X THE BELL SYSTEM TECHNICAL JOURNAL, 1952 



w 



Waveguides 



Generalized Telegraphist's Equations for Waveguides, 5. A. Schelkunof, pages 784- 

 801. 

 Wear Studies of Telephone Apparatus 



New Techniques for Measuring Forces and Wear in Telephone Switching Apparatus, 

 W. P. Mason and S. D. White, pages 469-503. 

 White, S. D. and Mason, W. P., New Techniques for Measuring Forces and Wear in Tele- 

 phone Switching Apparatus, pages 469-503. 

 Wilhelm, H. T., Impedance Bridges for the Megacycle Range, pages 999-1012. 

 Wilkinson, R. I. and Clos, Charles, Dialing Habits of Telephone Customers, pages 32-67. 

 Wiring and Wrapping Tools 



A New General Purpose Relay for Telephone Switching Systems, A . C. Keller, pages 

 1023-1067. 



Young, W. R., Jr., Comparison of Mobile Radio Transmission at 150, 450, 900, and 3700 

 Mc, pages 1068-1085. 



Zinn, M. K., Network Representation of Transcendental Impedance Functions, pages 

 378-404. 



Printed in U.S.A. 



