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Scientific American, Vol. 33, No. 2 (1875) (1875)

leaf 7

An illustration from Scientific American, Vol. 33, No. 2 (1875), 1875, leaf 7
rep»ated washings. plows at present cannot work to a depth of over four inches Jove The elastic forces hidden in the rubber threw him The first prize of $750 is offered for a method which will and a half without requiring changing in some manner, and give plaster casts the power of resisting… … culars address the inventor, Mr. H. N. terial should have the color of plaster; DALTON’S GANG PLOW SPRING. £3 Dalton, Pacheco, Contra Costa county, a yellowish tint, or any warmer tint, may Cal. be allowed, but the evenness of the color is indispensable. of a flying squirrel. The chief drawback to…

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