[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.c21.9 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c21.9 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c21.9 - **Language:** English ### [v1.c21.9](https://indike.org/pramana/ins.science.ray-1902.v1.c21.9) true in an earthen pot, cover it with another pot, face to face, lute the two together with layers of clay and cloth. The pots so luted are then placed on fire, and heated for four days, after which they are opened, and the white camphor-like deposit in the upper part is collected for use."¹ - [Previous: v1.c21.8](https://indike.org/pramana/ins.science.ray-1902.v1.c21.8) - [Next: v1.c21.10](https://indike.org/pramana/ins.science.ray-1902.v1.c21.10) - [Up: v1.c21](https://indike.org/pramana/ins.science.ray-1902.v1.c21) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v1.c21.9](https://indike.org/pramana/ins.science.ray-1902.v1.c21.9) · Pramāṇa