A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c13.s1.9
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c13.s1.9
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v1.c13.s1.9
“BEHAR.—Captain Sherwill in 1846¹ stated that a small quantity of alum was manufactured from slates obtained in the district of Shahabad; these rocks, it is believed, belonged to the Bijigrah pyritous shales of the Kaimur group of the Vindhyan series.