[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D.](https://indike.org/pramana/ins.science.ray-1902) › v1.c9.2 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c9.2 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c9.2 - **Language:** English ### [v1.c9.2](https://indike.org/pramana/ins.science.ray-1902.v1.c9.2) Colophon—The Rasas—Abhra—Vaikránta—Copper Pyrites—Vimala—Silájatu—Sasyaka—Extraction of Copper—Chapala—Rasaka—Extraction of Zinc—The Uparasas or Inferior Rasas—Sulphur—Gairika—Kásisa—Tuvarí—Tálaka—Manassila—The Añjanas—The Common Rasas—Navasára and other Rasas—The Gems—Vajram—General Process of Reducing Gems to Ashes—On Metals—Gold—Silver—Copper—Iron—Tin—Lead—Brass—Bell-Metal, &c.—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—Pátaná Yantram—Adhaspátana Yantram—Dheki Yantram—Váluka Yantram (Sand-bath)—Lavana Yantram—Náliká Yantram—Tiryakpátana Yantram—Vidyádhara Yantram—Dhúpa Yantram—On the Ingredients for Crucibles, &c.—Vrintaka Crucible—Calcination, Roasting, &c.—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 - [Previous: v1.c9.1](https://indike.org/pramana/ins.science.ray-1902.v1.c9.1) - [Next: v1.c9.3](https://indike.org/pramana/ins.science.ray-1902.v1.c9.3) - [Up: v1.c9](https://indike.org/pramana/ins.science.ray-1902.v1.c9) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v1.c9.2](https://indike.org/pramana/ins.science.ray-1902.v1.c9.2) · Pramāṇa