Brajendranath Seal states in his book, Positive Sciences Of The Ancient
Hindus (Shri Jainendra Press, 1985, pp. 64-65), that for more than a thousand
years India dominated the markets of the East through three breakthroughs in the
practical application of Chemistry to industry: the preparation of color-fast
dyes, the extraction of blue pigment from the indigo plant, and the chemical
hardening of steel. He refers to ancient Hindu sources that detail a process for
making a powder which, if inhaled, would produce sleep, and a process of
preparing a stick so that it would produce light without fire.
Seal offers evidence that the ancient Hindu chemists anticipated the fundamental ideas of modern atomic theory.
About the Author:
Seal, (Acharya) Brajendra Nath (1864-1938); philosopher, was born on 3 September 1864 at Kolkata's Rammohan Saha Lane. His father, Mahendra Nath Seal, was a reputed lawyer at Calcutta High Court. Brajendra Nath lost both his parents early in life and was brought up by his maternal uncle, Radharaman Nath. After completing his BA at Calcutta's General Assembly's Institution (later to be known as Scottish Church College) he became a lecturer there. In 1884 he obtained his MA degree in Mental and Moral Philosophy, standing first in first class. In 1910 he got his PhD degree from Calcutta University for his thesis on 'Mechanical, Physical and Chemical Theories of Ancient Hindus'.
Brajendra Nath taught at a number of colleges and also served as a principal. He was the first Indian principal at Coochbihar Victoria College (subsequently renamed Acharya Brajendra Nath Seal College). He served as the main professor of Philosophy at Calcutta University from 1912 to 1921. From 1921 to 1930 he was the vice-chancellor of Mysore University. He also headed the King George V Chair of Mental and Moral Science at Calcutta University (later named the Brajendra Nath Seal Chair of Mental and Moral Science).