Detailed notes on secondary sexual differences in various species of birds and mammals.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Detailed notes on secondary sexual differences in various species of birds and mammals.
Has found EB’s MS most interesting and valuable. Fully half the facts were new to him; will probably use some.