A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c9.s1.180

v1.c9.s1.180

Chakrapáni bases his work on that of Vrinda, who again follows closely the order and the pathology of the Nidána of Mádhavkara.² It necessarily follows that Vrinda was a recognised authority at least one or two centuries before the time of Chakrapáni and that the former was preceded by the Nidána by at least as many centuries and thus we have internal evidence of the existence of the Nidána in the eighth century as the lowermost limit—a date which is further corroborated by the fact that the Nidána was one of the medical treatises translated by order of the Caliphs.