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Scientific American, Vol. 42, No. 23 (1880) (1880)

leaf 4

An illustration from Scientific American, Vol. 42, No. 23 (1880), 1880, leaf 4
quantities is being developed near Wellsville, in Allegany pass through disk, C (Fig. 2), in the receiving instrument at ence to the engraving. Two similar castings are pivoted a distant point, and are arranged in the same relative posi- County, about forty miles to the northeast of what is known… … This novel combination is the invention of Mr. Mark W. INSTRUMENT FOR TRANSMITTING AND RECORDING Marsden, of Connersville, Pa. IMAGES. s+ _____—_ New Brunswick Red Granite. ‘ A chemically prepared paper is placed between disks, C An inexhaustible supply of fine red granite, equal if not and D, for…

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