[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) › c34.11 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c34.11 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c34.11 - **Language:** English ### [c34.11](https://indike.org/pramana/ins.science.ray-1956.c34.11) Place the crucible containing chemicals inside a mass of sand and apply heat by means of cow-dung cakes. This is known as the \*Bhudhara Yantram.\* - [Previous: c34.10](https://indike.org/pramana/ins.science.ray-1956.c34.10) - [Next: c34.12](https://indike.org/pramana/ins.science.ray-1956.c34.12) - [Up: c34](https://indike.org/pramana/ins.science.ray-1956.c34) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c34.11](https://indike.org/pramana/ins.science.ray-1956.c34.11) · Pramāṇa