[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [The Positive Sciences of the Ancient Hindus](https://indike.org/pramana/ins.science.seal-1915) › c8.t3.2 # The Positive Sciences of the Ancient Hindus c8.t3.2 The Positive Sciences of the Ancient Hindus c8.t3.2 - **Language:** English ### [c8.t3.2](https://indike.org/pramana/ins.science.seal-1915.c8.t3.2) Of the \*Nirviṣas\*, non-venomous snakes, twelve varieties are mentioned, including Boidæ (अजगरा) and the Colubrine Dendrophis (वृक्षेशय). Of the \*Vaikaraṇja\* (hybrid) snakes, there are ten varieties, of which three are produced by the union of certain venomous species, and seven are secondary derivative forms. - [Previous: c8.t3.1](https://indike.org/pramana/ins.science.seal-1915.c8.t3.1) - [Next: c8.t3.3](https://indike.org/pramana/ins.science.seal-1915.c8.t3.3) - [Up: c8.t3](https://indike.org/pramana/ins.science.seal-1915.c8.t3) --- Source: [https://indike.org/pramana/ins.science.seal-1915.c8.t3.2](https://indike.org/pramana/ins.science.seal-1915.c8.t3.2) · Pramāṇa