Discusses at length CL’s criticisms of natural selection.

Comments on possible former connection between the Galapagos and South America.

Discounts survival of mammals on atolls.

Discusses reptile origin of mammals.

Discounts development of a mammal on an island and the descent of mammals from a bird.

The antiquity of islands.

Comments on bats of New Zealand. Geographical distribution of seals. Discusses Amblyrhynchus.

Glad CL will read his MS on origin of dogs [Variation 1: 15–43].

Regrets he has nothing that he could contribute to the Field and cannot spare the time to work out anything on bees’ cells.

CD has a low opinion of British entomologists.

Lyell’s ingenious difficulties with natural selection show he is in earnest.

Asks JDH to observe beetles and variation of stripes in mules on his Syrian tour.

Discusses Spiranthes. Did AGM see dipterous insects insert proboscis?

Asks for information about Epipactis.

Describes fertilisation of Orchis pyramidalis.

Has received moth with pollen from O. pyramidalis.

Asks that Fraser’s Magazine for July or the review from it on Origin (Hopkins 1860) be sent to Asa Gray.

Thanks JDH for agreeing to observe coats of asses and mules in Middle East.

Asks for observations on vigour of plants as JDH ascends mountains.

Ad hominem article in Athenæum [review of John Tyndall, Glaciers of the Alps, 1 Sept 1860, pp. 280–2].

Reports extensive experiments on Drosera.

Observations on orchid anatomy.

Etty [Henrietta Darwin] much improved.

Reference to his "hobby of striped asses".

Sceptical of JBI’s "curious stories" on spirit-tapping: "believe nothing one hears & only half of what one sees".

Believes CD’s argument against special creation based on absence of terrestrial mammals on islands isolated before Pliocene era is very strong. However, the absence means Cetacea and bats have not modified towards terrestrial existence. There is similar lack of development of bats and rodents in Australia. Constancy among land shells of Madeira over long period shows that the majority of their species are immutable: a minority of "metamorphic" species maintains the overall number of true species while extinction removes many. Emphasis on the role of extinction discomfits CD’s opponents since the power of generation of new species ought to keep pace. Mentions Ammonite deposits with reference to CD’s comments on their apparent sudden extinction [Origin, pp. 321–2]. Perhaps absence of transmutation on slowly subsiding atolls indicates the slow rate of selective change.

Orders one copy of the issue of the Atlantic Monthly for last August (but not worth sending to America for) and two copies of the issue for next October.

Has received second part of AG’s Atlantic Monthly article ["Darwin on the origin of species", 6 (1860): 109–16, 229–39], and would like to have it reprinted in England with the first part.

Regrets no reviewer has touched upon embryology, which he feels provides one of his strongest arguments.

Sends Asa Gray’s review [of Origin]. Asks THH’s advice on getting it reprinted in England.

Hooker’s expedition to Syria.

Disgraceful review of Tyndall’s book in Athenæum.

Asks whether GG can provide a few fresh specimens of Goodyera.

Going to sea-side for Etty’s health.

Asks JBI further questions about a striped donkey he had reported to CD.

Requests observations on Drosera and Dionaea,

and asks DO to look up Buchanan and Wight on insectivorous plants ["Conspectus of Indian Utricularia", Hooker’s J. Bot. 1 (1849): 372–4].

Additional response, at length, to CL’s criticisms of natural selection. Comments on failure of rodents to develop in Australia. Argues that most species become extinct and do not develop. Discusses variability, especially variability of rudimentary organs. Extinction among ammonites. Survival of Ornithorhynchus. Descent of marsupials and placentals. Emphasises embryological argument for descent of species.

Asks for any published reference providing account of the movement of the viscid hairs or leaves of Drosera lunata, an Indian Drosera which Lindley cites in Vegetable kingdom, p. 433.

Thanks for reference to Annales des Sciences Naturelles.

Requests DO observe rate at which Australian Drosera closes.

On detection of nitrogen in organic fluids.

The family will move to sea-side because of his daughter Henrietta’s health. When they return he will be glad to send Leonard twice a week for tutoring. Frank is in a low form at school but is doing very well.

Cases of monstrosities becoming transmissible.

Comments on passages in Origin on the blindness of the tucu-tucu (Ctenomys) and Mammoth Cave rats.

Has received a batch of S. African specimens which contain many of the Atlantic genera he found in Madeira and the Canaries.