246 BELL SYSTEM TECHNICAL JOURNAL 



deal with the performance of an actual circuit. The results of these trials 

 will be reported in a separate paper. 



Acknowledgements 



The work which has been discussed in this report of necessity involved 

 the combined efforts of many individuals. In addition to those already 

 mentioned, practically every other member of the staffs of the Deal and 

 Holmdel Radio Laboratories has made valuable contributions to the work, 

 as have also many in other departments of the Bell Telephone Laboratories. 



The development of the components of the New York-Boston circuit has 

 been under the direction of Mr. Gordon N. Thayer. 



In particular, we wish to acknowledge the support and stimulating advice 

 of Dr. R. Bown under whose general direction the work progressed. 



