Showing 1–20 of 53 items
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.
Proportion of sexes in ruffs [see Descent 1: 306].
Colour display in linnets, songbirds. Courtship display of Australian pigeon at zoo.
Answers CD’s queries on difference in size of male and female Scottish deerhounds; female preference for larger males; details about ratio of sexes born. Quotes from letter of Archibald McNeill on difference in size of male and female Scotch deerhounds.
Raises a question about a statement in Orchids; his observations differ.
Replies to CD’s queries regarding sexual differences in gibbons’ voices, chameleon behaviour, and the occurrence of spurs in pheasants and peahens. Discusses sexual differences in structure and habit within certain bird species.
Answers CD’s question on whether any female birds regularly sing.
Sex ratios in cattle and sheep.
Reversion of tamed animals to wild behaviour.
Pairing habits of birds: polygamy among ducks and canaries.
Information on the proportion of sexes in fowls and other birds.
Answers CD’s objection [see 6121 and 6146] about sexual differences and protective colouring. Summarises his theory of colour in nature.
Measurements of the Bornean ape (Macacus inornatus, Gray). [See Descent 1: 151.]
BDW believes the coloration of species [of Anthocaris] provides a case of sexual selection.
The state of entomology in the U. S.; Darwinism now a common creed, especially among entomologists.
Has read Variation;
is preparing a monograph on Scotch deerhounds. Offers CD information on size of male and female deerhounds.
Might not the effect of human mother’s imagination on "character of offspring" support Pangenesis?
Reports another case of syndactylism.
Requests CD testimonial for Sherardian Professorship of Botany.
Replies to CD’s query on expression of emotions.
Encloses a testimonial for GWC [see 6162]. Feels himself poorly qualified to give a testimonial for a botanist and apologises for his brevity.
Asks about the ratio of male to female Lepidoptera.
Thanks CD for testimonial.
Sends his notes on Florent Prévost’s reference to the habits of the cuckoo.
Sends proofs of his fish paper.
Will observe modification of colour in fish.
Is studying the development of the axolotl.
Encloses notes in reply to CD’s queries on fishes.
