[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) › v2.c35.53 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c35.53 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c35.53 - **Language:** English ### [v2.c35.53](https://indike.org/pramana/ins.science.ray-1902.v2.c35.53) The causal relation, then, like the relation of genus to species, is a natural relation of concomitance (व्याप्तिः स्वाभाविकः सम्बन्धः—Váchaspati) which can be ascertained only by the uniform and uninterrupted experience of agreement in presence and agreement in absence, and not by deduction from a certain a priori principle like that of Causality or Identity of Essence. - [Previous: v2.c35.52](https://indike.org/pramana/ins.science.ray-1902.v2.c35.52) - [Next: v2.c35.54](https://indike.org/pramana/ins.science.ray-1902.v2.c35.54) - [Up: v2.c35](https://indike.org/pramana/ins.science.ray-1902.v2.c35) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v2.c35.53](https://indike.org/pramana/ins.science.ray-1902.v2.c35.53) · Pramāṇa