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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.
CD has previously received information on colours of greyhounds. Now asks whether breeders rear all puppies, and, if not, do they selectively rear more males or females?
CD requests WW to ask a large breeder of greyhounds whether the increase in litters requires that some puppies be destroyed. If so, is it sufficient to destroy merely the small and weak? Would this result in more males or females being destroyed?
CD once used the Field to tabulate ratios of female to male births in greyhounds (110: 100).
WW’s information accords with other accounts lately received. CD had formed an erroneous opinion on the subject.
Breeders normally destroy weak and puny puppies in large litters, but would keep females if only one or two.
On proportion of sexes in litters of greyhounds.
