Summary

Visiting arrangements.

Summary

Results of CD’s examination of data subvert JB’s former inferences. Will send abstracts from the data for his paper on colour of hair of single and married women 35 to 45 years old ["On the supposed increasing prevalence of dark hair in England", Anthropol. Rev. 1 (1863): 310–12].

Summary

Apologises for and explains the delay in supplying Haeckel with sponge specimens.

Mentions some of the interesting crustacean specimens he has received from the Porcupine cruise off the West of Ireland.

Summary

Gives the definition of ‘distal’ and explains what ‘thrips’ are. Suggests that LR uses his descretion in his translation of Orchids about certain descriptive phrases such as ‘saddle-formed’, but suggests he use them each at least once.

Declines offer to look over LR’s translation.

Summary

Asks whether the wild boar in India is polygamous.

Summary

Suggests Englishmen who might provide sponge specimens.

Summary

Sexual differences in Labidocera darwinii, in Entomostraca, and Myriapoda.

Summary

Encloses letter from W. B. Dawkins concerning "our old savage progenitors with their ground-down teeth".

Summary

Huxley has shown him the jaws of an Anoplotherium brought from the Gallegos by R. O. Cunningham.

Saw Hallett’s wheat crops at Brighton; results of his selection very striking.

Huxley is assembling his Darwiniana papers for republication.

Has written a crushing reply to Richard Congreve ["The scientific aspects of positivism", Fortn. Rev. n.s. 5 (1869): 653–70] and JDH feels "infantine" beside him.

Comments on Sabine’s being offered and accepting K.C.B.

Summary

On the antennae of Labidocera.

Size of sexes in Entomostraca.

Summary

Replies to JDH on Hallett; doubts that already improved varieties do not vary in other respects.

The North British Review article [see 6841] is worth reading "scientifically"; it made CD feel small.

Awaits JDH’s decision on affinities of Drosophyllum and Drosera.

Is curious to see proportion of males to females in recent census in India.

Summary

Polygamous breeding habits of the Indian wild boar. [See Descent 1: 267.]

Summary

Offers TSC specimens of parasitic worms collected by CD in S. America.

Summary

Thanks for two copies of Teoria Darwiniana, one of which has been sent to the Royal Society.

Summary

Immature male spiders usually resemble in colour the females of their species of the same age. In some species colours of sexes differ when mature.

Summary

Did not intend to imply that Hallett said variation stopped, but that it arrives at a point where further accumulation in direction sought is so slow as to result practically in fixity of type – but not absolute fixity.

Duke of Argyll has requested JDH to superintend publication of a flora of India. JDH thinks he [Argyll] is paying him off for his kick at natural theology.

Willy [Hooker] returning from New Zealand.

A unique character in Drosophyllum.

Sees no reason for CD to contribute to Ross and Faraday memorials.

Summary

Faraday memorial is an exception.

George [Darwin] has convinced CD that North British Review article is by P. G. Tait [see 6841].

Surprised that leaves of Drosophyllum are always rolled backwards at their tips, but did not know it was unique character.

Summary

Reports on a family of cats observed locally in which some members are six-toed.

Summary

Encloses results of several more years of observation on conjugal selection and hair coloration.

Summary

Declares himself CD’s defender; but he is a "teleologist".

Sends CD three more papers.

His research confirms his faith and belief in variability of species.