A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t2.53
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t2.53
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v1.c12.t2.53
Rub calamine with turmeric, the chebulic myrobalans, resin, the salts, soot, borax and one fourth its weight of semicarpus anacardium, and the acid juices. Smear the inside of a tubulated crucible with the above mixture and dry it in the sun and close its mouth with another inverted over it, and apply heat. When the flame issuing from the molten calamine changes from blue to white, the crucible is caught hold of by means of a pair of tongs and its mouth held downwards and it is thrown on the ground, care being taken not to break its tubulure.¹ The essence possessing the lustre of tin which is dropped is collected for use.