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Scientific American, Vol. 69, No. 14 (1893) (1893)

leaf 2

An illustration from Scientific American, Vol. 69, No. 14 (1893), 1893, leaf 2
lock of coal, weighing fourteen tons, shows little hut with a thatched roof. It carries a good sized a section of a vein in the Hocking Valley which is 15 sail, and for a rudder there is only a paddle. Near doubly interesting, and it was constantly surrounded feet 3 inches in thickness. itis a… … pared with the dimensions of the beau- miner at work with his pick upon the tiful new twin screw propellers the Cam- seam, with lumps of coal scattered about be rowed or sailed, and in either case is managed by pania and the Lucania, which have been completed this and the mine car in the…

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