Born Nov. 30, 1768, in Żnin, Poland; died May 12, 1838, in Vilnius. Polish chemist and physician.
Sniadecki studied in Kraków, Pavia, and Edinburgh. From 1797 to 1822 he was a professor of chemistry at the University of Vilnius. He is the author of the first university chemistry textbook in Polish (two vols., 1800). The book reflected the anti-philogistic views of A. L. Lavoisier. In his book Theory of Organic Beings (three vols., 1804–38), Sniadecki set forth ideas on the cyclic movement of elements in nature and on the exchange of substances in organisms.