124 BELL SYSTEM TECHNICAL JOURNAL 



2. "New Key West-Havana Carrier Telephone Cable," H. A. Affel, W. S. Gorton 



and R. W. Chesnut, Bell Sys. Tech. Jour., April 1932. 



3. "Carrier Telephone Systems for Toll Cables," C. W. Green and E. I. Green. 



Presented at the 1938 Winter Convention of the A. I. E. E. Published in 

 this issue of the Bell System Technical Journal. 



4. "Crystal Channel Filters for the Cable Carrier System," C. E. Lane. Presented 



at the 1938 Winter Convention of the A. I. E. E. Published in this issue of 

 the Bell System Technical Journal. 



5. "Magnetic Generation of a Group of Harmonics," E. Peterson, J. M. Manley and 



L. R. Wrathall, Electrical Engineering, August 1937. 



