Male dotterels take care of young and are less brilliantly coloured than females.

Discussion of origin of domestic sheep races. Some comments on the yak and the wild ancestors of the llama and alpaca.

Pleased that CD approves his idea about caterpillars.

Thinks CD is right about selection in butterflies, but still believes protective adaptation has kept down colours of females.

Cannot yet see action of natural selection in forming the races of man.

He has promised Mark [coachman to R. W. Darwin and Susan] that CD will continue the payment of £20 a year after EAD’s death; the house is rent free.

Reports observations on fertility of orchids he has self-pollinated and crossed with pollen of other species.

Thanks for information about the dotterel.

CD had ascertained by dissection that the female of the carrion-hawk of the Falkland Islands is very much brighter coloured than the male. Has inquired about its nidification. Mentions other instances of female birds that are brighter and more beautiful than the males and suggests causes for this anomaly.

Much obliged for lecture [On some defects in public school education (1867)]. Would leave classics to those with zeal and taste for appreciation. Learned nothing at school except by reading and experimenting in chemistry.

Asks whether WBT can carry out poultry mating experiments for him.

Wishes to know the correct name for the British Museum’s specimen of an Abyssinian wolf described by Wilhelm Rueppell, Neue Wirbelthiere zu der Fauna von Abyssinien [1835–40] .

Observations on Ophrys plants and Thymus vulgaris. Encloses sketch of different forms of T. vulgaris [see Forms of flowers, p. 302].

On improving the educational system.

Grateful for addresses of informants, especially that of Rajah James Brooke.

Dispatch of queries on expression. Answers will make interesting appendix to his "Essay on man" [Descent].

Protective adaptation of female butterflies believed probable.

Believes in sexual selection as applied to man.

Has been hunting for an otter-hound for CD.

Hopes CD will visit his museum at the Horticultural [Society].

Sexual ornamentation of insects: coloration of Epicalia genus [of tropical S. American butterflies];

horned genera of lamellicorn beetles [see Descent 1: 370, 388].

Wallace brought CD’s question about gay-coloured caterpillars before the Entomological Society. Members now seeking explanations.

ARW responds to CD’s list of queries about expression. Suggests acquiring informants through publishing the queries in newspapers. His doubts about their importance.

Has submitted caterpillar question to Entomological Society.

Asks to be kept informed on gaudy caterpillars.

Problems of his work on man; scope and role of sexual selection.

Indulgence of interest in expression is simply a "hobby-horse". Will see whether he can get queries inserted in an Indian newspaper.

Requests CD’s subscription to his On systematic botany and zoology [1870]. "Progressive development" is a leading principle of his work.

Has been persuaded to accept BAAS Presidency.

On Charles Naudin’s discovery of seeds of Chamaerops fertilised by the date-palm.

Thanks CD for permission to translate Variation into Russian. The translation will be guided by his brother Alexander, a follower of Darwin,

whose articles on the affinity of ascidians and vertebrates he forwards.

Sends several plants with abortive anthers or bad pollen.