[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) › c15.91 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c15.91 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c15.91 - **Language:** English ### [c15.91](https://indike.org/pramana/ins.science.ray-1956.c15.91) Minerals like sulphate of copper, sulphate of iron, realgar, orpiment and sulphur have been prescribed in combination with vegetable drugs for use as external application in many skin diseases. - [Previous: c15.90](https://indike.org/pramana/ins.science.ray-1956.c15.90) - [Next: c15.92](https://indike.org/pramana/ins.science.ray-1956.c15.92) - [Up: c15](https://indike.org/pramana/ins.science.ray-1956.c15) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c15.91](https://indike.org/pramana/ins.science.ray-1956.c15.91) · Pramāṇa