[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) › c40.s3.10 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c40.s3.10 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c40.s3.10 - **Language:** English ### [c40.s3.10](https://indike.org/pramana/ins.science.ray-1956.c40.s3.10) These compound forms, as before, are supposed to exercise their specific energies actively. Others again hold that the \*mahabhutas\*—\*tejas\*, \*ap\* and \*earth\* alone are compounded by a process named : \*trivrit-karana\* (triplication). Thus T = t₂ (ap₁. e₁), Ap = ap₂. (t₁. e₁), E = e₂. (t₁. ap₁). - [Previous: c40.s3.9](https://indike.org/pramana/ins.science.ray-1956.c40.s3.9) - [Next: c40.s3.11](https://indike.org/pramana/ins.science.ray-1956.c40.s3.11) - [Up: c40.s3](https://indike.org/pramana/ins.science.ray-1956.c40.s3) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c40.s3.10](https://indike.org/pramana/ins.science.ray-1956.c40.s3.10) · Pramāṇa