Summary

On hearing of CD’s work with Drosera, tells of his experiment showing extreme sensitivity of the iris of a dog’s eye to atropine. [See Insectivorous plants, p. 173.]

Summary

Has read THF’s article on Coronilla [see 9400] – "a very curious case"; is troubled by C. emerus.

Summary

Invites TB to visit. Wants to make his acquaintance.

Summary

Thiselton-Dyer’s announcement of his inability to continue as JDH’s private secretary is a blow. He will now be doing original work. JDH is glad of that but the loss of his help is great.

Summary

Spottiswoode is pressing for an answer to invitation to GHD to lecture at the Royal Institution. GHD is having MS of the paper he has written sent to CD, so that CD can advise whether he should accept the invitation.

Summary

Thanks JDH for his and Huxley’s countering of the false attack on George [Darwin] by Mivart. Encloses a note to Mivart on which he asks JDH’s opinion.

Summary

Has "given the slip" to Nepenthes, but is setting a plant up in an enclosure for special observation.

Has some splendid Sarracenia and will perform any miracle regarding them CD puts him up to.

Charmed with CD’s account of Pinguicula. Would like to try whether Lychnis has the same use of viscid fluid.

Has written for English Utricularia for CD.

Summary

Hooker is greatly overworked at Kew and is trying to get the Government to provide some help. CD hopes THF will take an interest in the matter and forwards a copy of JDH’s application for an assistant.

Summary

Sends queries [on proofs of Descent, 2d ed.]. Will be finished, except for the index, in two days.

Is now less satisfied than formerly with his statistics on cousin marriage.

[Enclosure is a copy by GHD of J. S. Mill’s statement about Origin (Logic 2: 18 n.).]

Summary

After taking advice he has decided to write an explicit denial and short account of his essay and send it to the Quarterly Review.

Summary

Encloses a letter [from Huxley about his invitation to lecture at Edinburgh]. Has done his best to dissuade Huxley from accepting the burden.

JDH’s depression in bereavement.

Summary

Discusses paper on volcanoes by J. W. Judd.

Comments on volcanoes of the S. American Cordillera.

Mentions paper by T. F. Jamieson ["Glacial period in N. Britain", Q. J. Geol. Soc. Lond. 30 (1874): 317–18].

Summary

Sends a draft of his letter to the editor of the Quarterly Review [137 (1874): 587–9], answering Mivart’s charges. Encloses draft of CD’s letter to John Murray, urging publication of GHD’s defence, with George’s amendments.

Summary

Describe the Pinguicula species found at Mürren. Have found seeds on some. Their large roots seem to indicate that they do not get much animal food.

Summary

Thanks for fibrin. Drosera and Pinguicula dissolve it thoroughly.

Summary

Farrer has taken the case to Northcote. JDH’s letter will show how overworked he is.

Summary

Thanks JF for copy of Cosmic philosophy [1874].

Summary

Returns historical sketch [of GHD’s "cousin paper"?] with comments. "For Heavens sake put a sentence in some conspicuous place that your results seem to indicate that consanguineous marriage, as far as insanity is concerned, cannot be injurious in any very high degree."

Summary

Is sorry to hear the news about the cousin question – a real misfortune.

Congratulates GHD on being nearly finished with work on Descent.

Summary

Heavily correcting sheets for Coral reefs, 2d ed. [1874]. Offers to pay extra printer’s charges.