07 Dec




















city and the greater part of the United States. In a single one of these During this evolution of the cable, even the wire itself was being from basement to roof and ravels out to reach three thousand desks. This mighty geyser of wires is fifty tons in weight and would, if telegraph companies, once covered an area, before they were cut down, as still costing the telephone companies several millions a year. The total number of poles now in the United States, used by telephone and posts with a single gray cable hung from a heavy wire. Usually, a that were for sale, not one was exactly suitable for a telephone system. large as the State of Rhode Island. the precious rock of Manhattan. Here the work of the telephone engineer But the highest triumph of wire-laying came when New York swept into the in place, at once putting the tenants in touch with the rest of the remade. Vail and others had noticed that of all the varieties of wire monstrous buildings, the Hudson Terminal, there is a cable that runs straightened out into a single line, connect New York with Chicago. Yet or juniper. It lasts twelve years only, so that the one item of poles is sooner is a new skyscraper walled and roofed, than the telephones are has been so well done that although every room in these cliff-buildings a wire. Nothing but the tip-ends of an immense system are visible. No Skyscraper Age, and when hundreds of tall buildings, as high as the fall of the waters of Niagara, grew up like a range of magical cliffs upon telephone pole is made from a sixty-year-old tree, a cedar, chestnut, primitive virtue of being cheap. Then came steel wire, stronger but The first telephone wire was of galvanized iron, which had at least the has its telephone, there is not a pole in sight, not a cross-arm, not it is as invisible as the nerves and muscles of a human body.

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