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Scientific American, Vol. 30, No. 14 (April 1874) (1874)

leaf 4

An illustration from Scientific American, Vol. 30, No. 14 (April 1874), 1874, leaf 4
device is folded up, the cannot too strongly urge them to give it a trial.—Land and currents alternately positive and negative, which operated a boards connecting the trusses may be secured between the Water. Morse receiver having a polarized armature. steps of the front part, A, serving thereby as… … cylinders will support about 60 lbs. 4, 1873. For further particulars re- A NEW MAGNETO-ELECTRICAL INSTRUMENT. The cylinders of this material are the garding sale of State rights, etc., ad- cheapest, most efficient, and most durable means yet invent- account of its light weight, simplicity, and…

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