A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t3.19
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t3.19
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v1.c12.t3.19
Alum is to be macerated in the bile of the ox one-hundred times and then its essence is to be extracted by distillation¹—a very secret process, not to be divulged. 65