Proportions of sexes in birds as reported by bird-catchers.
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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.
Proportions of sexes in birds as reported by bird-catchers.
George Rolleston’s son was born with a scar on his knee exactly where GR cut himself with a knife years before his marriage. Gives several other examples of inherited mutilation.
Instinct in birds; nest-building.
Inheritance of acquired characters.
Observations on root-climbers. Variegated and arborescent varieties of Hedera.
[CD’s notes are for his reply, 6165.]
Starlings find new mates readily. Nesting in threes common.
Recognition of song by birds.
Plumage of canaries; changes in plumage with successive moults.
Coloration of linnets.
Sexual behaviour of black hen bullfinch.
South Down sheep: variability in colouring and patterning of lambs compared with constancy of adult coat.
Loss of juvenile colouring in South Down sheep.
Describes the unusual appearance of a horse whose mother had previously borne a foal by a quagga. The effect of one mating on the subsequent pregnancy of another mating is explained by JJW using Pangenesis.
On behaviour of birds when frightened and when threatening.
Purple Cytisus grafted onto yellow stock produces some yellow flowers.
Mutations in rabbits.
Cites case of variegated leaf form of one plant apparently spreading to a neighbour.
On mutations in rabbits.
Cytisus case is not a double graft.
Aggressive behaviour of birds of prey.
On variegated leaves; a feature not inherited consistently.
Hostility of birds toward others with same colour;
nuptial plumage.
Spiza cyanea and Spiza ciris.
Hybrid Motacilla.
Case of female duck leaving mate to pair with male of another species.