Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 39
t Enlarging Came-ra.—A gentleman of the name of Palmerhas long been engaged upon the construe-tion of an instrument to permit the copy-ing of any object, or series of objects, uponeither a larger or smaller scale than the vol. rv. no. i, 4 original. He has at length succeeded inthe most perfect and… … artaric Acid—is com-posed of four parts carbon,five parts oxygen and twoparts of hydrogen. It isfound in the fruit of manyplants, more especially inthe erape, in combinationwith potassa, and is manufactured inlarge quantities from the bi-tartrateof potassa, a crystalline substance onthe sides of…
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