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Scientific American, Vol. 16, No. 6 (1867) (1867)

leaf 3

An illustration from Scientific American, Vol. 16, No. 6 (1867), 1867, leaf 3
rom two of the most eminent iron testers, in in the operationsof the farm can well remember the weari- which the samples of iron rejected by the dockyard officials is claimed, can be used over and over again. ; some labor of dropping the corn from a bag suspended to the The device consists of… … Speculum Metal.—Copper, 6 ; tin, 2 ; and arsenic, 1 part: | the annoyance of seeing the corn come up in straggling blades, Bath Metal—Brass, 32; and zinc, 9 parts. some in and some between the hills, Allthisis obviated by simple implements like that shown in the engraving. We copper, 7; zinc, 3;…

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