Hybrids of Phasianus versicolor breed freely between themselves as well as with common pheasants. Has been assured that hybrids between mallards and pintails are sometimes fertile inter se.
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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.
Hybrids of Phasianus versicolor breed freely between themselves as well as with common pheasants. Has been assured that hybrids between mallards and pintails are sometimes fertile inter se.
[T. Bell Salter’s?] "hybrid" Epilobium a false claim.
Admires Huxley’s response to Falconer [see 1904].
Tristan da Cunha plant list, requested by CD, supports JDH’s position [on continental extension?].
Chilean plants not exceptional.
JDH considers parallels between Australian Alps and European plants strong evidence for multiple creations.
Has reduced 20 Cyrena species to geographical varieties of one species, Cyrena fluminalis. Hooker is reducing Indian flora at the rate of 19 to 1.
Recommends W. H. Harvey’s Seaside book [1849] and Charles Pickering’s Races of man [1850].
Lists Lusitanian shells with wide ranges beyond that geographical province.
Antiquity and elevation of land mass is more important than latitude for the distribution of shells.
Responds to CD’s questions about the geographical distribution of freshwater fishes.