States he has "misgivings about the definiteness of species". Believes there is some inherent tendency for plants to originate varieties. Cross-fertilisation is likely in most cases but sees difficulties with plants like Adlumia.
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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.
States he has "misgivings about the definiteness of species". Believes there is some inherent tendency for plants to originate varieties. Cross-fertilisation is likely in most cases but sees difficulties with plants like Adlumia.
Important issue at stake with new flora calculations: evidence that species are only strongly marked varieties. Planning large-scale survey.
Thanks for rabbit.
Are there dun-coloured ponies in Shetlands? Are they striped?
Delighted that JSH is coming to Down. Sends correct train time.
Tabulation of varieties goes on; very important as it shows the branching of forms. Mentions his principle of divergence.
Invites JL to dine and meet J. S. Henslow.
Asks JL not to call as he has a "very old friend" [J. S. Henslow] coming to visit him.
Yesterday visited poultry show at Crystal Palace.
Is looking forward to returning home [from Moor Park hydropathic establishment]. News of other patients and the books she is reading. Although feeling well, cannot walk much.