c Ame-|turpentime, but not before the fire. Thus In reducing the arsenious acid, two or three| tity, can be present, should the copper be co- rican, the exterior will have acoat of wax alone, vered with agray deposit, it must be dried and CHAPMAN’S ROTARY ENGINE. and shines like a mirror. Tallow ag… … as long, may show characteristically all the one another bya fluid. The absolute quan- ends, and revolving within an interior cylin- by the graver, the lines made by that instru- tity of electricity brought into circulation by physical peculiarities of an arsenical subli- der C C, so that a channel…
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