Testimonial in support of WBT’s application for curatorship of the Hartley Institution.
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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.
Testimonial in support of WBT’s application for curatorship of the Hartley Institution.
WBT’s "too kind and flattering" article on Orchids.
Can WBT help get an answer to a query on ducks?
Has heard of a case of special sterility in cattle, in which a particular pair are sterile, but the individuals are both fertile with others.
CD interested in hybrid sterility and encloses his preliminary MS. Outlines experiments to test for existence of sterility in breeds of poultry and pigeons.
Experiments on dimorphism have led him to change in part his opinion as given in Origin, and he is now asking pigeon and poultry fanciers for any examples of special selective sterility [i.e., a particular pair are sterile when crossed, but each individual is fertile with others] and hopes to investigate its inheritance.
Has WBT ever heard of a case of the regeneration of monstrous (extra) toe on fowls?
Inquires about a curious pigeon reported at the Philoperisteron [pigeon fanciers’ club].
Does not believe in regeneration of monstrous toe.
Pigeon and poultry experiments.
Peculiar pigeon at Philoperisteron [pigeon fanciers’ club].
Hoped to meet CD at the Linnean Society to discuss pigeon and poultry breeding experiments.
Discusses experiments that WBT will undertake to investigate whether particular pigeon and poultry crosses produce sterile hybrids.
Progress of pigeon and poultry breeding experiments. No loss of fertility observed yet.
Blue-eyed cats and deafness.
WBT progressing with breeding experiments for CD.
CD making quicker progress with Variation.
Encloses a cutting from the Field: C. R. Bree on zebra-striped asses.
Sends MS on fowls for WBT’s inspection.
Sends paper on mimetic analogy [Intellect. Obs. 6 (1864): 307–13].
Mongrel experiments are progressing, but he has observed no signs of sterility.
CD working on Variation; he will soon want corrected fowl MS [Variation, ch. 7].
WBT’s breeding experiments produced no sterility.
Would like his fowl skulls back.
Breeding experiments seem to show mongrels are just as fertile as pure breeds.
Wants his fowl MS.
Will shortly return WBT’s skulls.
Asks for return of page about pigeon crossing.
Will return page on pigeons.
Has concluded his crossing experiments and found no trace of hybrid sterility or loss of fertility.
The Field is publishing a series of papers on different pigeon varieties [24 (1864): 366, 395, 459; 25 (1865): 115, 139, 155, 228, 258].
Asks for WBT’s help in arranging for woodcuts to illustrate pigeon chapters of Variation.
Encloses some poultry feathers.
Will read over and return CD’s MS on fowls. Has been delayed by an eye injury.