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Scientific American, Vol. 32, No. 12 (1875) (1875)

leaf 3

An illustration from Scientific American, Vol. 32, No. 12 (1875), 1875, leaf 3
mechanism. It prints, country yielded about half that weight. The residue is an folds, pastes, and binds the paper inside of a cover, which it impalpable pulverulent gray powder, composed, in round also prints; and delivers the numbers, thus completed, at the numbers, of 70 per cent mineral and 30… … much pressure, for with too much of that gas the flame is pectations entertained for them, although it is hoped that Fig. 3.—Crystals obtained by evaporating a drop of snow water. white instead of blue, and therefore less photogenic. more favorable results will be obtained when improvements tains…

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