The origin of On The Origin of Species: Darwin's research notes scribbled in 730 books from his own library go online

Darwin had 1,480 books in his library, of which 730 contain a wealth of scrawled notes, providing clues to his thoughts as he wrote On The Origin Of Species.

Source: http://www.dailymail.co.uk/sciencetech/article-2007170/The-origin-On-The-Origin-Species-Darwins-research-notes-scribbled-730-books-library-online.html?ITO=1490

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