History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c37.s1.2
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c37.s1.2
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c37.s1.2
"Take five palas of saltpetre, one pala of sulphur and one pala of charcoal, prepared from the wood of *Calotropis gigantea*