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Scientific American, Vol. 14, No. 9 (November 6, 1858) (1858)

leaf 7

An illustration from Scientific American, Vol. 14, No. 9 (November 6, 1858), 1858, leaf 7
ew draws out the upper end, and The arm, D, attached to the lever, A, meshes tion of another piece of stuff. The tool, G, is the honor is due is M. Gersham; and this atthe same time makes a firm bearing when into the rack, E, and holds the rest inits pro- the roughing tool that prepares the stuff… … understand that they are not only good, but The mode and materials employed by M. have the additional recommendation of being Gersham to prepare this amalgam are as fol- lows :—He takes twenty, thirty, or thirty-six —————__2 +9) _____ parts of pure copper, which is obtained by Seals Gas Generator.…

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