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Scientific American, Vol. 35, No. 12 (1876) (1876)
leaf 9
equal parts. tubes containing rarefied gas. The distance and brilliancy GAUGAIN’S ELECTRIC VALVE. of the strata depends on the nature and pressure of the gas, a distance of 13°6 inches. Under these conditions the edge In Fig. 2 is represented a singular phenomenon yet ur- the dimensions of the… … puts on a beautiful and silvery whiteness. Powdered mag: same direction, wherever may be the points of attachment nesia may be used dry for articles slightly tarnished, but if of the poles of the coil. very dirty it must be used wet and then dry © 1876 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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