A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c10.t16.32
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c10.t16.32
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v1.c10.t16.32
"A young *butea frondosa* is to be cut to pieces and dried and finally reduced to ashes. The ash is to be lixiviated with four or six times its weight of water and strained (through linen) 21 times."²