History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.s2.t3.59
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.s2.t3.59
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v1.c13.s2.t3.59
Percy (1861) and Tylecote (1962) have mentioned that in Sikkim evidence of old copper working has been found and there powdered ore was mixed with cow dung, balled and roasted. Then the roasted ore was melted with charcoal in a shaft furnace to produce copper. At Khetri also similar process was in practice as quoted in Gleaning in Science (1831) and by Anon Brook(1964).