Comments on Hooker's list – very good, but Orchids and Primula paper have too indirect a bearing to be worth mentioning. The Eozoon is a very important fact and to a much lesser degree the Archaeopteryx. Müller's Für Darwin  perhaps the most important contribution. Darwin has forgotten to mention Bates on variation and Hooker's Arctic paper ["Distribution of Arctic plants", Trans. Linn. Soc. Lond. 23 (1862): 251–348] in new edition of Origin. Now finds that Owen claims to be originator of natural selection.
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