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Scientific American, Vol. 19, No. 3 (1868) (1868)

leaf 7

An illustration from Scientific American, Vol. 19, No. 3 (1868), 1868, leaf 7
crewed. Each half of the It took a long time to discover a means by which the disper- steamboats, sleeping cars, etc., adding much to the comfort bub is funished with wedge-shaped radial projections, B, sion of light, when it passes through the lenses of optical in- of the traveling public, which,… … of sufficient importance to repay analysis. The engravings present very plainly the peculiarities of Ee the device. The rims may ke made of good cast or malleable MILITARY TELEGRAPHS, iron, or gun metal. The back band—that nearest the stock The Military Telegraph system now used in the U.S. Army of…

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