[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.c12.t3.4 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t3.4 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t3.4 - **Language:** English ### [v1.c12.t3.4](https://indike.org/pramana/ins.science.ray-1902.v1.c12.t3.4) Sulphur is of three kinds: that of the first quality resembles the beak of a parrot; that of the second quality is yellow; whereas the white variety is the worst. Another authority says: there are four kinds of sulphur according as it is of white, yellow, red and black colour respectively......the black variety is rare.¹ 12-15 - [Previous: v1.c12.t3.3](https://indike.org/pramana/ins.science.ray-1902.v1.c12.t3.3) - [Next: v1.c12.t3.5](https://indike.org/pramana/ins.science.ray-1902.v1.c12.t3.5) - [Up: v1.c12.t3](https://indike.org/pramana/ins.science.ray-1902.v1.c12.t3) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v1.c12.t3.4](https://indike.org/pramana/ins.science.ray-1902.v1.c12.t3.4) · Pramāṇa