Describes his views on vivisection. Cannot sign petition of F. P. Cobbe, with its attack on Rudolf Virchow.

Huxley strongly dissuades JDH from writing to Mivart because of his Presidency of Royal Society. JDH will hold his letter until he hears what Bentham says.

Is not inclined to restrain himself from expressing his opinion of Mivart. Huxley’s article in Academy.

Tyndall, T. A. Hirst and Spencer dissuade him from writing to Mivart, but he will let him feel his disapproval.

FMM discusses his reply to George Darwin’s article [see 9711].

Intends within a year to place his whole argument before CD when, he hopes, his difficulties connected with the origin of language will be carefully considered by CD.

JDH would be rash not to follow advice of his friends. [CD’s] wife and George oppose his writing to Mivart.

Thanks CD for his letter of 1 Jan 1875. Will send a paper on the genus Volvox ["Die Entwicklungsgeschichte der Gattung Volvox", Cohn Beitr. Biol. Pflanz. 1 (1875) Heft 3: 99–115].

Informs CD of his discoveries of the "house"-building capacity of Difflugia, one of the lowest forms of organism.

Sends CD his writing on Aldrovanda and Utricularia, which he is welcome to use in his forthcoming book [Insectivorous plants].

Has observed a Dionaea fertilised without insect aid.

StGJM’s article in the Quarterly Review [137 (1874): 40–77] contains wholly false and malicious accusations against CD’s son George. Since StGJM has refused to make any sort of retraction, CD will not hold any future communication with him.

CD has written to Mivart to say that he will never hold any communication with him in future.

Is on the eve of another row with the Office of Works about his application for assistance.

Is alarmed by the petitions against vivisection that are being circulated. Believes there is scope for reasonable legislation and would like to see eminent physiologists prepare a petition so that the science could be protected and animals saved from needless suffering.

Hopes JDH will beat Sir Douglas Galton.

Continues to work on insectivorous plants.

Wants references to facts quoted in Variation for an essay he is writing on origin of British cattle.

JDH wins over Douglas Galton and Lord Henry Lennox on assistant secretary for himself.

Has called on Murray and told him Quarterly Review had disgraced itself by attacking George and CD.

Astonished at JDH’s success versus Galton

and his attack on Murray is superb. Has written a formal letter to Mivart enumerating his offences.

Sends a letter from Anton Dohrn, which, if CD approves, will be printed with a list of all donors to the Naples Zoological Station. AGD-S has just returned from a visit to the Station and gives an account of its status. German government has made a grant.

Agrees with CD on vivisection. Will communicate with Burdon Sanderson and see what can be done.

Mivart’s wriggle.

Writes on behalf of Royal Society Polar Committee for suggestions concerning instructions to naturalists on new expedition.

Sends suggestions for observations on glacial phenomena that might be made on the [Polar] expedition [of H. M. S. Alert and Discovery, 1875–6].

Does CD think it desirable for EBT’s wife to produce a new English translation of A. E. Brehm’s work [Illustrirtes Thierleben (1864–7)]?