History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.s4.56

v1.c13.s4.56

lead bath for manufacturing the iron beams, although from their description the specific purpose of the use of molten lead mixed with Borax is not very clear. Nagarjuna (Biswas 1981) is considered to be the father of Indian Alchemical Science, and according to Bose et al. (1971) and Filliozat (1951) his work is dated to 1st century A.D. and not 10th century A.D. as estimated by Alberuni. *Rasa Ratna Samuccaya* (8-12 century A.D.) has described variety of crucibles (Musa), Yantra and furnaces for the manufacture of Ayurvedic medicines.