It is not true that all the fossil cave bears are of the same species.
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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.
It is not true that all the fossil cave bears are of the same species.
CD is glad there is to be an American edition of Origin printed from the corrected 2d English edition.
CD is sending some books by carrier. Requests that he be given the 1st and also the 10th editions of Vestiges of creation [1844, 1853], and also the 2d edition of Baden Powell’s Unity of worlds [1856]. "No other editions will be of any service." [See Origin (1861), "Historical sketch".]