Sends CD "L’applicazione della teoria Darwiniana ai fiori ed agli insetti visitatori dei fiori" [Bull. Soc. Entomol. Ital. 2 (1870)]. Continues to support vitalism and teleology.

COG-N sends, at the request of the late Lord Brougham, a copy of his work, The book of nature and the book of man [1870].

Is glad CD liked Chamois hunting [in Bavaria (1853, 1860)].

Regrets CD’s poor health.

Sends his book, Transylvania [1865].

Sends monstrous oranges,

red grape leaves,

and a bean with blue fruits (a hybrid of Phaseolus vulgaris and a Dolichos species).

Thanks CD for his support and for his cautionary advice.

Will send his work on embryology of arthropods as soon as it is finished [Bau und Entwicklung der Arthropoden (1870)].

Is glad CD likes the proofs; looks forward to the appearance of his work.

Returns CD’s MS [of entomological section of Descent] marked with suggested alterations.

Suggests qualifications about rudimentary horn in female Onitis furcifer [See Descent 1: 372].

Sends additional data on colour differences in sexes of longicorn Coleoptera [See Descent 1: 367–8].

Suggests a modification of CD’s view of female coloration that would bring him "nearly into harmony" with Wallace.

Refers to "Devonshire Man"’s attack on him ["Professor Huxley’s last new theory", Pall Mall Gaz. 18 Jan 1870, p. 6]. His intention to answer – a waste, except for political bearing of Celt question ["Professor Huxley on Celts and Teutons", Pall Mall Gaz. 21 Jan 1870, p. 6].

Plans for his new book, Contributions to the theory of natural selection (1870), which will contain his papers on the subject.

JBI sends clipping about a hybrid between a deer and a cow, from the same parish as the one reported in 1868.

On the development of the mammae and the glands of the skin. R. A. v. Kölliker and Carl von Langer are the authorities [See Descent 1: 209].

Asks JC-B to return copy of Duchenne [Mécanisme de la physionomie humaine (1862)] and sends some notes "as your former notes were of such extreme interest to me".