Page:A History of Hindu Chemistry Vol 1.djvu/181

Rh frog, sulphide of antimony and the seed hyperanthera morunga."

[The first five articles are interpreted as meaning the calces thereof.]

"Among the constituents we have, pearl, sulphur, powder of iron, copper and silver."

[The text does not precisely say whether the metals are to be used as such or as killed by being roasted with sulphur. The Hindu physicians however always take them in the latter sense.]

"A thin iron plate is to be made red hot and plunged into the decoction of the myrobalans, cow's urine, the solution of "the salts", the solution of the alkali extracted from the ash of butea frondosa; i.e. made red hot and plunged into one of the above liquids at a time. When the iron becomes black like collyrium it is to be powdered. * * *