who wrote the book entitled the history of hindu chemistry
Prafulla Chandra Ray Acharya Sir Prafulla Chandra Ray also spelled Prafulla Chandra Rây CIE (Bengali: প্রফুল্ল চন্দ্র রায় Praphulla Chandra Rāy; 2 August 1861 – 16 June 1944)[1] was a Bengali chemist, educator and entrepreneur.[2]