A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c22.s4.2
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c22.s4.2
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v1.c22.s4.2
Hindu physicians generally procure the scales from the black-smith’s forge, which peel off the red-hot bars of iron, when they are struck on the anvil with an iron hammer. These are subjected to further roasting, sometimes as many as 500 times and powdered very fine.