History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c27.s1.41
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c27.s1.41
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c27.s1.41
Calamine is to be heated and plunged seven times into the juice expressed from the seeds of lemon, or immersed in the urine of man or of horse, or in sour gruel or sour milk, and thus purified. 154-155