Hindu Achievements in Exact Science: A Study in the History of Scientific Development c16.21

c16.21

Gebir, the earliest Saracen (Spanish) chemist (eighth century), was familiar with Hindu *rasayana* (alchemy and metallurgy, the seventh division of the "science of life," called *Ayur-veda*). He called carbonate of soda "sagimen vitri" from the Hindu name *sajji matti*. He also knew *tutia*, the Hindu name of copper sulphate.⁷⁸