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Darwin Correspondence Project

Second species sketch

MS-DAR-00006-000-00103.jpg

Darwin's draft outline of Species Theory, sent to Asa Gray in 1857
http://cudl.lib.cam.ac.uk/view/MS-DAR-00006/103
Darwin's draft outline of Species Theory, sent to Asa Gray in 1857
CUL DAR 6: 51-56
Cambridge University Library

Darwin finishes an expanded sketch of his species theory, first drafted in 1842

July 1845
1845-07-15