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Scientific American, Vol. 36, No. 5 (February 1877) (1877)

leaf 6

An illustration from Scientific American, Vol. 36, No. 5 (February 1877), 1877, leaf 6
en the casting is taken from lost without any corresponding benefit to the grain, which we make the core box in three pieces, the object being to the mould, the projecting wires are chipped off, and that re- turn up the end pieces, A A, in the lathe, the manner of pro- never improves after the… … Sulphur 0*10 Cnchona 0 50 Strychnia 4*00 form is obtained; whereas in paring and shaping, the bend- " sulphate 6|70 cedure being as follows : We get out the two pieces marked " nitrate 0*25 ler acetate 10*00 Coppe] ing by hand, though the operation be ever so skillfully per- A A, and square up the…

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