Summary

On variegated leaves; a feature not inherited consistently.

Summary

Difference between sexes of Ibis rubra; change in plumage.

Summary

Congratulations on success of CD’s son [George].

Summary

Petition Cambridge University that candidates for an Honour degree may be relieved from the obligation of passing an examination in Greek.

Summary

Insists that he, not Le Couteur, was the first to recognise and exploit variation within wheat varieties. Disturbed he was not acknowledged in Variation.

Summary

Preference of stallions for hybrid mares.

Summary

Abstract growing to inordinate length.

Writing in support of S. Passell as assistant at Linnean Society.

Summary

Forwards a letter from John Horner of Market Drayton, Shropshire, concerning £2000 he considers due to him from CD under the terms of the will of Sarah Bayley.

Summary

Sexual differences in coloration. Sexual selection versus natural selection as explanations. ARW continues to argue against sexual selection, saying that natural selection, in keeping the female dull for protection, would account for differences in sexual colouring more effectively than inheritance and partial transmission of sexually selected male colours. Colours of female birds of paradise. Protective coloration. Disagrees with CD on coincidence of hidden nests and bright colours of females.

Summary

Observations on hybrids from crossed cabbage varieties.

Summary

Reminds WBDM of his promise of information about the quartz boulders and an iceberg with fragment of rock seen in southern ocean.

Sends other questions [on separate sheet (missing)] which WBDM will think ridiculous, but all bear on plants and animals under domestication.

Summary

Thanks GGS for calculation [to determine the chances of the same peculiarity recurring in a family, see Variation 2: 5]

Summary

Thanks for rabbit.

Are there dun-coloured ponies in Shetlands? Are they striped?

Summary

TH believes that the progeny of hybrid crosses, in which a domesticated or "artificial" race is involved, tend to resemble the more "natural" of their parents [see Natural selection, p. 486].

Provides some information on local hybrid domestic geese [see Natural selection, p. 439] and pigeons.

Summary

Thanks for "rich and valuable" letter [missing].

Has read TR’s paper in Gardeners’ Chronicle ["Seedling fruits – plums", (1863): 27] – "a treasure to me".

Questions about seedling peaches that approach almonds.

Asks whether TR has ever observed varieties of plants growing close to other varieties for several generations without being affected by crossing.

Summary

Thanks WDF for information on blackbirds’ nests [see Natural selection, p. 505].

Problem of choosing from among the load of curious facts for chapter on "Instinct" [Natural selection, ch. 10; Origin, ch. 7] perplexes him.

Asks about behaviour of chicks in danger and whether crossed animals are wilder than either parent.

Summary

Is attempting to get skins of poultry from all quarters of the world. Wants to inspect poultry collections.

Summary

Would like to borrow WBT’s collection of fowls’ skulls.

Asks for WBT’s opinion of G. Ferguson, the author of a poultry book [Ferguson’s illustrated book of domestic poultry].

Summary

Has finished correcting Primula paper [see 4332].

Has presented paper on monoecious spikes of maize [Edinburgh New Philos. J. 2d ser. 19 (1864): 213–20].