Asks to borrow W. C. Hewitson’s book [British oology, 2 vols. (1831–44)].
CD is searching for reliable information on slight variations in the degree of perfection of nests of the same species of birds.
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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.
Asks to borrow W. C. Hewitson’s book [British oology, 2 vols. (1831–44)].
CD is searching for reliable information on slight variations in the degree of perfection of nests of the same species of birds.
Thanks WDF for information on blackbirds’ nests [see Natural selection, p. 505].
Problem of choosing from among the load of curious facts for chapter on "Instinct" [Natural selection, ch. 10; Origin, ch. 7] perplexes him.
Asks about behaviour of chicks in danger and whether crossed animals are wilder than either parent.