cur- munication is constantly maintained between the train, This relay, a very important part of the apparatus, is rent originates, is placed by Mr. Phelps at apointequi running at times about 40 miles an hour, and a main intended, of course, to serve a certain purpose. In its distant from the… … containing the conductor is brought up to with- trouble whatever in hearing the signals, as they Fig. 4.-PHEIPS' NEW RECEIVING RELAY. come out clear and distinct, being readily un- in an inch or two of the intersecting rails, and the conductor, forsaking'its wooden protector derstood from the…
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