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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.
Sends a sample of seeds of Onobrychis sativa and Poterium muricatum, plants that show mimicry.
Suggests that mimicry of sainfoin by burnet plants is an adaptation against farmers’ weeding.
Comments on and corrections for chapter 13, "Mammals", of Descent.
Retention of horns by female deer with fawn [see Descent, 2d ed., p. 503].
Observations on habits of caribou and deer in Newfoundland.
Suggests nightingale egg coloration evolved from white to olive for protection.
Argues that coloration of eggs is a protective adaptation.
A geologist friend leaving for Nevada offers to investigate any questions CD may have for this region.
Nesting plumage of common chaffinch resembles adult winter plumage of female brambling.
Praise for and detailed comments on Expression.
Two cases of coloration in animals – one from sexual selection, the other helping to procure prey [see Descent, 2d ed., pp. 542–3].
Insists that suckling babies pound and scratch mothers’ breasts. Perhaps CD’s evidence to the contrary comes from ladies, who only expose small portion of bosom, as opposed to working-class women.