Theodor Schwann (December 7, 1810 in Neuss, Prussia - January 11, 1882, in Cologne) was a German physiologist, histologist and cytologist. Among his many contributions to biology there was the development of cell theory, the discovery of Schwann cells in the peripheral nervous system, the discovery and study of pepsin, the discovery of the organic nature of yeast and the invention of the term metabolism. Wikipedia
The definitive Wikipedia entry for Theodor Schwann. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Theodor_Schwann
Theodor Schwann (1810-1882), German physiologist, was born at Neuss in Rhenish Prussia on the 7th of December 18 o. His father was a man of great mechanical talent ; at first a goldsmith, he afterwards founded an important printing establishment. Schwan www.1911encyclopedia.org/Theodor_Schwann