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Scientific American, Vol. 20, No. 24 (June 1869) (1869)

leaf 4

An illustration from Scientific American, Vol. 20, No. 24 (June 1869), 1869, leaf 4
icker baskets in large vatsor tanks, and cover them with water, the temperature ofwhich must be from 120° to 140° Fall., and no more. 6. Skirn the fat as it forms from the top of the warm water,and it is then ready, after mixing with alkalies to be boiled,into soap. If the bones! unlbeenboiled, the… … rowing cut. The bottom plate which supports the bones is perforated liy small holes, andis surmounted by a pipe whichreaches above their surface inthe pan, so that when the waterin A begins to boil it runs outthrough the top of the pipe, B,and liowsoverand through themass of bones in a…

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