Summary

Agrees to help determine the sex ratios in domestic animals.

Summary

Is much obliged that WBT will undertake tabulation of sex ratios in racehorses, greyhounds, and cattle.

Summary

Slashing article on Variation in Athenæum.

Discussion of relationships of various pigs.

Summary

Returns Anthropological Review.

Asks to borrow Desmarest on Crustacea [Considérations générales sur la classe des crustacés (1825)].

Has been reading JL’s address to the Entomological Society [Trans. R. Entomol. Soc. Lond. 3d. ser. 5 (1865–7): cxiii–cxxxi].

Would like to hear JL’s conclusion for or against Pangenesis.

Summary

Encloses information on sex ratios in thoroughbred horses.

Summary

Has looked through BDW’s papers and finds heaps of facts on sexual differences. Asks questions on sexual differences in particular species.

Summary

Mentions review [of Variation] in the Athenæum [15 Feb 1868, pp. 243–4].

Comments on adaptive utility of the right hand, an organ still undergoing specialisation.

Summary

Thanks for Nathusius [Die Racen des Schweines (1860)].

CD will call on JEG to hear his views on specific differences of pigs.

Does not know who has "cut me up so severely" in the Athenæum but suspects "your great man in the Museum" [Richard Owen].

Summary

JEG’s paper on pigs is being printed [Proc. Zool. Soc. Lond. (1868): 17–49].

Colouring in horses.

Summary

Sends data from J. G. Jeffreys on the form of shells of the sexes of Mollusca. [See Descent 1: 324, 326.]

Summary

Will gladly supply any information he can. Sends Registrar General’s reports; will inquire about the animals.

Summary

CD thanks BJS for photographs of Jemmy [Button]’s son

and for the curious case about stallions, which leads him to ask whether BJS has observed that horses when fighting try especially to bite each other’s necks.

Does he know anything about male seals fighting?

Summary

Asks for information on coloration and proportions of sexes in butterflies and moths for his work on sexual selection.

Summary

Wants to know how the colour of the eye of the peacock’s tail is produced, whether it depends upon colouring matter in the feathers or reflection, and whether any varying structural change will account for the series of colours surrounding it.

Summary

Proportion of sexes in spiders; coloration.

Summary

Has put question of proportion of sexes in insects to the Entomological Society. Quotes H. T. Stainton and F. Smith. Cites some cases mentioned by other members.

Is reading Variation; does not quite understand Pangenesis.

Summary

Discusses the flowers of, and cross- and self-fertilisation in, certain aquatic plants. Gives cases of dichogamy and perfect self-fertility.

Summary

CD in utter confusion about differences between J. O. Westwood and HWB on division of certain insects. Asks if HWB will homologise certain families for him, telling him which terms would be most generally understood.

Asks also about differences on sound-producing organs of Achetidae Gryllidae.

Summary

Encloses letter (not found) from Australian friend responding to CD’s queries on expression.

Summary

Coloration of blind beetles.

Sizes of sexes in Taphroderes.