Asks about proportions of male to female insects.

Wants information on sex ratios in domestic animals. Can WBT help?

Is working on sexual selection and is interested in any anomalous sex ratios in lower animals and any sex-related characters.

Corrects some facts and gives further information on some points for the 2d ed. of Variation.

Specific distinctions among animals.

Cercopithecus of Africa contrasted with the Cebus of South America.

Notes on domestic fowls and their ancestors.

Slow growth of wild animals compared with domestic varieties.

Thanks for copy of Variation. Comments on it, especially on Pangenesis.

Requests information on published observations on the proportional number of males and females born to various domestic animals.

On the colours of sexes in Crustacea; the structure of male crabs.

WSD is delighted to hear that first edition [of Variation] has sold so well.

Has received a cheque from J. Murray for 30 guineas, double what was agreed upon. Sends a postal order for the five guineas CD sent him [see 5788].

CD is much interested in FB’s remarks in Land and Water on the apparent excess of male trout over females and asks for further information on other fish, birds, and domestic quadrupeds.

Is interested in the relative numbers of males and females of all animals; wants any instances of males, or females, being in excess.

Discusses [Fritz?] Müller’s confusion about ova and pseudova; JL’s Daphnia paper [Philos. Trans. R. Soc. Lond. 147 (1857): 79–100; see 1979] first demonstrated their structural identity.

Points out a misleading statement in Variation.

CD’s letter encourages Murray to proceed with a new edition of Variation; corrections will cost £176.

First notice has appeared in Pall Mall Gazette [7 (1868): 555].

On blind beetles [see Descent 1: 367].

Development of mandibles in Brentus.

Variability of sizes and colours in spiders; on proportion of sexes; courtship of spiders.

Asks whether mane in male of Macacus silenus protects it from bites or is merely ornamental.

Sends photo of four Fuegians, including Jemmy Button’s son.

Reports incident of two wild stallions on the Falklands acting together in an attempt to take a troop of mares from an introduced English horse [see Descent 2: 241].

Rejoices over news of Variation sales.

Pall Mall Gazette review [7 (1868): 555, 636, 652] is undoubtedly by G. H. Lewes [see 5951].

Dinner at Lyells’.

Dean Stanley favours a monument to Faraday in Westminster Abbey.

Perceval Wright is back from Seychelles and reports on plants he collected.

JEG and Nathusius on pigs.

Reference to JEG’s paper on African and Indian cats [Proc. Zool. Soc. Lond. (1867): 258–77, 874–6].

Requests entomological data on sexual selection, especially proportions of sexes.

Sends Queries about expression with note: "a great hobby of mine".

WSD expresses his willingness to do further translating for CD. Sends terms of remuneration.