A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t10.27
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t10.27
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v1.c12.t10.27
Brick, red ochre, saline deposits, ashes, earth from ant-hills—these 5 kind of earth are recommended by the experts. 85