Tomorrow is the anniversary of German physiologist and surgeon Kaspar Friedrich Wolff, born in 1733. Considered the founder of embryology Wolff issued in 1759 called revolutionary work Theoria generationis , which challenged the prevailing theory that each organism develops from a homunculus - or a tiny version of an adult - inside a seed or semen. Wolff proposed that groups of cells, initially non-specialized, differentiated into various tissues, organs and systems. The idea that plants and animals are composed of cells was still controversial, and Wolff's findings were shunned for more than 50 years. But he finally did get a measure of recognition. The body of Wolff, an embryonic structure in animals that develops in the kidney, is named after him
[Source:RoyPorterEd The Biographical Dictionary of Scientists (Oxford University Press, ed. 2, 1994).]
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