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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.
Otto Staudinger’s catalogue shows prices of female Lepidoptera to be higher than those of males.
Submits lists of insects [missing] for correspondent to check whether brightly coloured. Wants to determine whether there is any relation between bright colouring, whether in both sexes or one alone, and an unequal number of males and females.
On proportion of sexes;
coloration of sexes in Lepidoptera.
Sexual attraction of female Saturnia carpini.
