[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.c11.t4 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c11.t4: Tamrayoga (lit. Powder of Copper Compound) A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c11.t4 - **Language:** English ### Tamrayoga (lit. Powder of Copper Compound) ### [v1.c11.t4.1](https://indike.org/pramana/ins.science.ray-1902.v1.c11.t4.1) “ Take a thin leaf of Nepalese copper and embed it in powdered sulphur. The substances are to be placed inside a saucer-shaped earthen-ware vessel and covered with another. The rims are luted with sugar or powdered rice-paste. The apparatus is heated in a sand-bath for three hours. The copper thus prepared is pounded and administered with other drugs.” --- Source: [https://indike.org/pramana/ins.science.ray-1902.v1.c11.t4](https://indike.org/pramana/ins.science.ray-1902.v1.c11.t4) · Pramāṇa