[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) › c34.6 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c34.6 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c34.6 - **Language:** English ### [c34.6](https://indike.org/pramana/ins.science.ray-1956.c34.6) \*Adhaspatana Yantram\* :—A modification of the above apparatus in which the bottom of the upper vessel is smeared with the substance, the vapour or essence thereof condensing into the water of the lower one. Heat is applied on the top of the upper vessel by means of the fire of dried cow-dung cakes (Fig. 30 B). - [Previous: c34.5](https://indike.org/pramana/ins.science.ray-1956.c34.5) - [Next: c34.7](https://indike.org/pramana/ins.science.ray-1956.c34.7) - [Up: c34](https://indike.org/pramana/ins.science.ray-1956.c34) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c34.6](https://indike.org/pramana/ins.science.ray-1956.c34.6) · Pramāṇa