History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c18.s2.t1.5

v1.c18.s2.t1.5

For *‘ausadhāyaskṛti’* strongly heated pieces of thin Iron sheets are quenched in the decoction of *Tṛvrit* etc. drugs, kept in a boat shaped tub made of *Palāśa* wood repeatedly for twenty one times. There after Iron pieces should be kept in a *thālī* (wide mouth vessel) with the above liquid and heated over cow dung fire till the liquid reduces to 1/4th part and filtered. This filtrate may again be used for quenching hot iron sheets pieces repeatedly. In the end mix *Pippalyādi* powder one part, ghee and honey two parts each with the treated Iron in an Iron pot and keep it in secret place for sometimes. It is known as *‘Auṣadhāyaskṛti’*.