BSTJ 1: 1. July 1922: Philadelphia-Pittsburgh Section of the New York-Chicago Cable. (Pilliod, James J.) (1922)
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are of considerable magnitude, it is obvious that differentmethods of providing facilities, if available, must sooner or laterbe given serious consideration. The conditions between Phila-delphia and Pittsburgh and in general along all of the cable routesshown on Fig. 1 are now, or are expected… … Fig. 4—Section of New York-Boston Main Line Showing Wires Heavily Loaded withIce. November 28, 1921 and of the methods available for providing long-distance telephonefacilities, which in general are aerial wire and cable, it has been decidedthat for relief in these sections the cable method will…
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