[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) › v2.c32.s3.15 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s3.15 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s3.15 - **Language:** English ### [v2.c32.s3.15](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s3.15) Sulphur, gairika, kshiti, khechara (mica), añjana, kaṅkushtha:—these are the uparasas. Cf. Vol. i, p. 89. - [Previous: v2.c32.s3.14](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s3.14) - [Next: v2.c32.s3.16](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s3.16) - [Up: v2.c32.s3](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s3) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v2.c32.s3.15](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s3.15) · Pramāṇa