History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c35.2
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c35.2
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c35.2
*Vrintaka Crucible* :—A crucible of the shape of the brinjal (*Solanum melongena*) to which is attached a tubular end, expanding towards its mouth like the flower of *Datura stramonium*, and which is either twelve or eight digits in length, is suitable for the extraction of the essence of calamine and other readily fusible minerals. 23-24