[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray](https://indike.org/pramana/ins.science.ray-1956) › c21.9 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c21.9 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c21.9 - **Language:** English ### [c21.9](https://indike.org/pramana/ins.science.ray-1956.c21.9) Verses 21-22 describe the preparation of crucibles from clay free from straw and rocky materials. - [Previous: c21.8](https://indike.org/pramana/ins.science.ray-1956.c21.8) - [Next: c21.10](https://indike.org/pramana/ins.science.ray-1956.c21.10) - [Up: c21](https://indike.org/pramana/ins.science.ray-1956.c21) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c21.9](https://indike.org/pramana/ins.science.ray-1956.c21.9) · Pramāṇa