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Scientific American, Vol. 44, No. 21 (May 1881) (1881)

leaf 13

An illustration from Scientific American, Vol. 44, No. 21 (May 1881), 1881, leaf 13
Sftxtutiilt %mmtm. [May 21, 1881. 332 … New York, N. Y. nifying power is equal to a Si micro- ■ scope. As a compass, it is worth more than the price of the combination, and DO YOU WANT TO BECOME A TELEGRAPH OPERATOR it makes a neat and novel watch charm WANTED, Sample, oy mail, nickel-plated 35c. Send 25 cents for Illustrated Instruction…

Patented · Ammonia · Gamgee · Silk · Patents · Scientific American · Inches · Trade catalogs · Liquid ammonia · Silk culture · Floor beams · Professor gamgee · Steam engine · High pressure · Low pressure · Induction coil

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