A History of Hindu Chemistry, vol. 1

Initiation into Discipleship—On the Laboratory—On Technical Terms—Tests for Killed Iron—Antimony from Stibnite—Certain Other Technical Terms—On Apparatus (the Yantras)—Dola Yantram—Svedani Yantram Svedani Yantram: a steaming apparatus—Pátaná Yantram Pátaná Yantram: an apparatus for sublimation or distillation—Adhaspátana Yantram Adhaspátana Yantram: a downward distillation apparatus—Dheki Yantram—Váluka Yantram (Sand-bath)—Lavana Yantram—Náliká Yantram—Tiryakpátana Yantram Tiryakpátana Yantram: a lateral distillation apparatus—Vidyádhara Yantram—Dhúpa Yantram—On the Ingredients for Crucibles, etc.—Vrintaka Crucible—Calcination, Roasting, etc.—The Metals—The Salts—The Alkalies—The Oils—The Fats—The Urines—The Acids—The Earth—The Poisons—The Solvents—On the Purification of Mercury—Fixation of Mercury—Incineration of Mercury . . . . . . . . . . 76

. . . . . . 133 Alum and Green Vitriol . . . . . . . . 146

ON METALS AND METALLURGY . . . 152

Zinc . . . . . . . . . . . . 156
De la formation des métaux original: "On the formation of metals" . . . . . . . 162
On the Essence of Minerals . . . . . . 169
Calamine—The Vitriols—Blue Vitriol . . . . . 169-171

ON GUNPOWDER, SALTPETRE AND THE MINERAL ACIDS

Gunpowder—Saltpetre—Mineral Acids . . . . . 174

KNOWLEDGE OF TECHNICAL ARTS AND DECLINE OF SCIENTIFIC SPIRIT . . 190

THE WASTAGE OF GOLD IN THE COURSE OF PREPARING JEWELRY IN BENGAL

Soldering—Filing and Cutting—The Chemical Operations of the Goldsmith: Cleansing, Colouring and Polishing