Submitted by PeterPavement on Wed, 04/26/2017 - 12:51
Darwin writes a 32-page outline of his ideas on species change, known as 'the pencil sketch'
May 1842
1842-05-15
Submitted by PeterPavement on Wed, 04/26/2017 - 12:51
Darwin writes a 32-page outline of his ideas on species change, known as 'the pencil sketch'
Darwin Correspondence Project
Cambridge University Library
West Road
Cambridge
CB3 9DR
UK
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