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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.
Has acquired some French frogs, Rana esculenta, which have mated with R. temporaria, but the spawn has not developed.
Asks whether anyone has successfully crossed frogs and toads.
In Variation CD claims there are no distinct races of carp, but AR says that in Germany a peculiar and constant variety of carp has been bred.