Francis Darwin - Definition

Sir Francis Darwin, F.R.S. (August 16th 1848 - 19th September 1925) was the botanist son of Charles Darwin. He was elected a Fellow of the Royal Society on the June 8, 1882.

Francis Darwin worked with his father on experiments dealing with plant movement, specifically phototropism. Their experiments showed that the coleoptile of a young grass seedling directs its growth toward the light by comparing the responses of seedlings with covered and uncovered coleoptiles. These observations would later lead to the discovery of auxin.

External links

• Project Gutenberg Books (http://onlinebooks.library.upenn.edu/webbin/gutbook/author?name=Darwin%2C%20Francis)

	Topics relating to Charles Darwin
	Family: Erasmus Darwin (grandfather) - Josiah Wedgwood (maternal grandfather) - Emma Darwin (wife) - William Darwin; Anne Darwin; Etty Darwin; George Darwin; Elizabeth Darwin; Francis Darwin; Leonard Darwin; Horace Darwin; Charles Waring Darwin (children) - Francis Galton (cousin)
	Contributions to evolutionary biology: Evolution by means of natural and sexual selection.
	Books: The Voyage of the Beagle - The Origin of Species - The Descent of Man and Selection in Relation to Sex
	Named in honour of Darwin: Darwin Medal - Darwin, Australia - Charles Darwin University, Darwin College, Cambridge