Science amd Art. tising tool. ted by adjusting the stud, K’. venient and accurate. It also permits the the peculiar form shown, and is so made that Composition and Formation of Steel. Before a recent meeting of the Boston Nat- … lent wire for pianoforte strings, made of this panies, who have the invention in use; they accordingly. Fig. 2 shows a piece of wood of stuff, such as bed posts, car frames, &c., all kind of steel, as well as for cutting instru- all speak in the highest terms of its practical exactly alike, without…
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