English naturalist and author (1809-1882) whose book explaining his theories of evolution, On the Origin of the Species by Means of Natural Selection (1859), takes a place among the most influential texts in the history of scientific thought. Bold ink signature, "Charles Darwin, Down, Kent, July 1st 1879, With Mr. Darwin's compliments," on an off-white 5 x 6.5 sheet of Down, Beckenham, Kent, Railway Station stationery. In fine condition. Accompanied by the original mailing envelope, addressed in Darwin's hand to a professor. Also includes an unsigned photograph of the influential evolutionary thinker.
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