History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c16.s6.20
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c16.s6.20
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v1.c16.s6.20
(iii) Use of manganese both as decolouriser and as a tinctorial agent starts in the beginning of Christian era.