CHAPTER III

CHEMISTRY IN THE BOWER MS.

The Alkalies—Fumes of Horn—Kshārataila Kshārataila: an alkaline oil—Formula for Hair-Dye—Rasáyana Defined—The Doctrine of Bitumen—A Linctus—Formulæ for Eye-ointment . . . . 52

CHAPTER IV

CHEMISTRY IN THE VAGBHATA

Preparations of Gold, Silver, Copper, Iron and Lead—Preparation of Alkali and Caustic Alkali—Use of Mercury . . . 55

THE TRANSITIONAL PERIOD

CHEMISTRY IN THE SIDDHA YOGA OF VRINDA AND CHAKRAPANI

CHAPTER I

Preparations in which Sulphide of Copper and Æthiops Mineral Æthiops Mineral: a black sulphide of mercury Figure—A collyrium—A process of Killing Iron Killing: the process of incinerating or calcining metals to make them fit for medicinal use . . . 58

CHAPTER II

BLACK SULPHIDE OF MERCURY (KAJJALI) OR ÆTHIOPS MINERAL

Támrayoga Támrayoga: a copper-based medicinal powder—Process of Killing Iron—Mandura Mandura: rust of iron or Rust of Iron—Recipe for a Soap to be used as a Depilatory—Preparation of Caustic Alkali . . . . . . 61