The Athenæum article [review of Variation, 15 Feb 1868, pp. 243–4] is a disgrace.

WSD will keep CD’s queries about Hemiptera in mind. Secondary sexual characters are certainly more marked in exotic than in British species.

Thanks EW for information [on expression] about Australians.

Has read CD’s inquiry about proportional numbers of males and females born to domestic animals [see 5863] and outlines his theory regarding the factors determining the sex of offspring.

Found [Variation] full of interest. Has not yet made up his mind about Pangenesis; wants to hear what can be said against it.

Proportion of sexes in butterflies; discussion of subject at meeting of Entomological Society, London.

Attraction of males by female Lasiocampa quercus. [see Descent 1: 311–12.]

Sends a preliminary reply to CD’s query [5890]. Ten males to one female among captured micro-Lepidoptera. Six females to four or five males in those he has bred. HTS is aware this is diametrically opposed to information from [Alexander] Wallace and Bates, but the true proportion of sexes can only be ascertained by breeding.

Notes on sexual differences in British Hemiptera.

Is obliged for note on right-handedness. The subject is a very curious one, but CD has never attended to it and can give no additional facts.

Thanks WBT for tabulation of sex ratios in racehorses.

Discusses factors possibly influencing the sex of caterpillars. Is gathering information on sex ratios in insects and would welcome any cases in which males seem to outnumber females.

RT’s argument about the Lasiocampa strikes him as very good; asks for any similar cases. Wonders whether male butterflies may serve more than one female.

Comments on J. O. Westwood’s entomological nomenclature.

Discusses the organs for stridulation in Orthoptera [see Descent 1: 352ff].

On numerical proportions of sexes in insects; coloration. Dimorphism in dragonflies (Agrion) in which usual coloration is reversed in sexes [see Descent 1: 362–4].

Wallace seems to ride his hobby too hard.

Asks LJ which British birds are polygamous. His query relates to the possession by the male of secondary sexual characters.

CD is also interested in the numerical proportion of the sexes in birds.

Asks about the use of the horns in male lamellicorn or coprophagous beetles.

Reports work on sexual selection. Problems with the relative numbers of the two sexes and polygamy. Asks ARW’s help with several questions on polygamous birds.

Sends corrections [for French edition of Variation].

Thanks HWB for bringing "the question of sexes" before the Entomological Society. Feels he will come to some conclusion by comparison of numerous observations.

It appears Pangenesis "will expire unblessed and uncursed by the world".

Sends sheets of second issue [of Variation] with errata and changes to be made.

Refers to a favourable review,

and a contemptuous one in Athenæum written, he thinks, by Richard Owen [see 5931].

CD’s queries on expression.

Sends photo of a native Australian.

Has sent his translations [of parts of Theodor Piderit, System der Mimik und Physiognomik (1867)].

Fritz Müller’s Für Darwin [1864] would sell if well translated. WSD would be glad to undertake it.