A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c11.t16.3
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c11.t16.3
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v1.c11.t16.3
"For the purification of silver, the crucible is best made of two parts of the ashes of *schrebera swietenoides*, and one part each of brick dust and earth."¹