A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s14.22
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s14.22
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v2.c32.s14.22
One part of gold and four parts of zinc are to be melted together and the alloy roasted in a closed crucible . . . . the process repeated with the addition of alkalies . . . . gold of a reddish yellow colour will thus be generated. 11-17