Image from page 180 of "Bell telephone magazine" (1922)
Title: Bell telephone magazine
Contributing Library: Prelinger Library
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r100 population. In all communitiesof less than 50,000 population, theUnited States shows a total tele-phone development of more than 17per 100 inhabitants. In this respect,Sweden, Switzerland, and Canadarank next in the order named with de-velopments of 14, II and 10, respec-tively. No one city in the UnitedStates embraces more than seven per-cent of the countrys telephones. Yet,the three large urban centers of NewYork, Chicago and Los Angeles to-gether had far more telephones thanthe largest telephone system in theworld outside of the United States.A telephone network larger thanthat of Norway serves the 831 thou-sand people of the San Franciscoexchange area, so that the measureof telephone development for thismetropolis is 44.48 telephones foreach 100 people, a figure surpass-ing that of any other large metro-politan telephone exchange area inthe world. Two telephones for 1.35billion people in the world of 1876!Almost one telephone for every twopeople in the San Francisco of 1947 1
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The New Bell Telephone From the Scientific American of October b, 1877 Our large engraving . . . affordsan excellent idea of how the instru-ment is used, and also of about theextent of circuit over which it isknown to be capable of successful op-eration. We suppose the closed wirecircuit to extend from New York toNewark, thence to Paterson andYonkers, and back to New York, adistance of about 50 miles air line, orsome 70 miles by railway. The fig-ure marked New York may be con-sidered as a public speaker deliveringa lecture to be heard in the townsmentioned. He talks into one tele-phone while he holds another to hisear, in order, for example, to hear theapplause, etc., of his auditory; or hemay be maintaining a discussion or debate, and he then hears his adver-sarys replies or interruptions. Now,at Newark there is simply a reporter,who takes down the speech phonog-raphically; the words pass on throughthat telephone and reach Paterson.Here we show two persons, each witha telephone, the
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