Abstract :
Saratoga Springs, N. Y., June 26, 1925 W. C. Peterman: This paper treats of a phase of communication that apparently has not kept pace with the advances in other methods of communication. Numerous inquiries have been directed in recent years about the cause of this apparent lack of progress in the field of cable telegraphy. As a matter of fact, a very considerable progress has been made in the past 10 or 15 years. The improvements in this period, principally in the terminal apparatus, repeating apparatus and operating methods, resulted in a substantial increase of speed and a reduction cf operating cost. There were, among others, the introduction of a successful relay to automatically connect two. cable sections, the development of an amplifier suitable for cable conditions, and the improvement in the design and use of artificial cables for duplexing.
