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Scientific American, Vol. 67, No. 9 (August 1892) (1892)

leaf 7

An illustration from Scientific American, Vol. 67, No. 9 (August 1892), 1892, leaf 7
nsists in first taking a red, a yellow, and a to be made at the Villette gas works, and let us say plants, they all need considerable water to enable them blue negative of the object on plates specially sensi- just here that it was a perfect success. I to thrive, and so are always found in wet… … THE BALLOON AND ITS PARACHUTE. fScience Monthly, allel rays falling into it. © 1892 SCIENTIFIC AMERICAN, INC.

Munn · Patents · Plate · Scientific American · Compressed air · American supplement · Sealed proposals · Express money · Armor plate · Electric light · Natural gas · Horse power · Years ago

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