Ray, Prafulla Chandra History of Chemistry in ancient and medieval India incorporating the history of Hindu Chemistry Prafulla Chandra Ray; edited by P. Ray - Calcutta Indian Chemical Society 1956 - 494p. ill. 24cm Includes index Subjects--Topical Terms: History--IndiaChemistry--India--History Subjects--Geographic Terms: India--History Dewey Class. No.: 954 / RAY