[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D.](https://indike.org/pramana/ins.science.ray-1902) › v1.c23 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c23: Appendix II A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c23 - **Language:** English ### Appendix II ### [v1.c23.1](https://indike.org/pramana/ins.science.ray-1902.v1.c23.1) Dhekī yantram. (See p. 123) ### [v1.c23.2](https://indike.org/pramana/ins.science.ray-1902.v1.c23.2) Vālukā yantram. (See p. 123) ### [v1.c23.3](https://indike.org/pramana/ins.science.ray-1902.v1.c23.3) Dolā yantram. (See p. 121) ### [v1.c23.4](https://indike.org/pramana/ins.science.ray-1902.v1.c23.4) Svedani yantram. (See p. 122) ### [v1.c23.7](https://indike.org/pramana/ins.science.ray-1902.v1.c23.7) Dhūpa yantram. (See p. 125) ### [v1.c23.8](https://indike.org/pramana/ins.science.ray-1902.v1.c23.8) Koshthí apparatus, for the extraction of zinc from calamine. (See p. 89) ### [v1.c23.9](https://indike.org/pramana/ins.science.ray-1902.v1.c23.9) Pātatnā yantram. (See p. 122). ### [v1.c23.10](https://indike.org/pramana/ins.science.ray-1902.v1.c23.10) Adhaspātana yantram. (See p. 122). ### [v1.c23.11](https://indike.org/pramana/ins.science.ray-1902.v1.c23.11) Vidyādhara yantram. (See p. 124). ### [v1.c23.12](https://indike.org/pramana/ins.science.ray-1902.v1.c23.12) Tiryakpātana yantram. (See p. 124). ### [v1.c23.13](https://indike.org/pramana/ins.science.ray-1902.v1.c23.13) From Ball's Economic Geology of India. (See p. 140-41). --- Source: [https://indike.org/pramana/ins.science.ray-1902.v1.c23](https://indike.org/pramana/ins.science.ray-1902.v1.c23) · Pramāṇa