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Scientific American, Vol. 55, No. 7 (August 1886) (1886)

leaf 8

An illustration from Scientific American, Vol. 55, No. 7 (August 1886), 1886, leaf 8
diameter upward. The constant demand for these and full of perforations. These cylinders are of dif- beautiful objects, which has at all times been greater ferent curvatures, according to the size of the crystal to than the supply, warrants the belief that their value be ground. Powdered emery and… … The occurrence of rock crystal in nature is almost United States, where that it is the labor and skill required in their cutting, unlimited, but the more beautiful crystals, so highly labor is so much bet- LABGE JAPANESE CBYSTAL BALL instead of the rarity of the material employed. Mr. prized in the…

Patented · Munn · Contained · Crystal · Scientific American · Iron · Cent solution · Upper disk · Rock crystal · Express money · American supplement · Crystal balls · Cold hammering · Address munn · Side beams

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