File:Darwin tree cut.png

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Description
English: Charles Darwin's 1837 sketch, his first diagram of an evolutionary tree from his First Notebook on Transmutation of Species (1837) on view at the the Museum of Natural History in Manhattan. Interpretation of handwriting: "I think case must be that one generation should have as many living as now. To do this and to have as many species in same genus (as is) requires extinction . Thus between A + B the immense gap of relation. C + B the finest gradation. B+D rather greater distinction. Thus genera would be formed. Bearing relation" (next page begins) "to ancient types with several extinct forms"
Date
Source http://www.english.uga.edu/nhilton/4890/darwin/DarwinTree.html
Author
Charles Darwin  (1809–1882)  wikidata:Q1035 s:en:Author:Charles Robert Darwin q:en:Charles Darwin
 
Charles Darwin
Alternative names
Charles Robert Darwin
Description British naturalist and author
Date of birth/death 12 February 1809 Edit this at Wikidata 19 April 1882 Edit this at Wikidata
Location of birth/death The Mount Down House
Authority file
creator QS:P170,Q1035

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current13:12, 5 March 2012Thumbnail for version as of 13:12, 5 March 2012620 × 612 (9 KB)ChrisTi (talk | contribs)

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