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Scientific American, Vol. 48, No. 9 (1883) (1883)

leaf 7

An illustration from Scientific American, Vol. 48, No. 9 (1883), 1883, leaf 7
d, the upper halves of the sections In summing up, the Republécan says: Coal was produced wires must be laid urderground, and the question now is as of pipe are laid and the trench filled, in other sections of the State of which no returns could be to the best way of doing it. A. noted enterprise… … wires. ink must not be put on too thick. One of the objections to the pipes The glass is printed with this ink, WIRE. now in use for underground wires and then dusted over with finely pulverized Syrian asphalt and is, that the cable inserted from any heated in a sheet iron muffle until the ink and…

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