A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s7.6
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s7.6
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v2.c32.s7.6
Take 1 part of bell-metal, 2 parts of silver, 4 parts of steel (?) * * * these to be fused with tin and borax ;—by this process will be made silver which will pass current for commercial purposes.