Concern over Wallace’s book [Contributions to the theory of natural selection (1870)] and its apparent backsliding from Darwinian theory. HWB suggests that only CD is capable of criticising the book.

HWB hopes not too much was made over his few comments on man in M. F. Somerville’s book [Physical geography, revised ed. (1870)].

Encloses A. R. Wallace’s reply [in which he says he will undertake revision of Descent if CD wishes]. HWB says this shows that Wallace is unaware of the scope of revision; suggests need for well-defined terms.

Books CD requested have been packed and sent.

He will present CD with the classified catalogue [of Royal Geographical Society].

He has not learned whereabouts of Thomas Staley.

Notes that Mr[s] Barber’s communication [forwarded by CD] will be published because of more striking than usual facts ["Notes on … larva and pupa of Papilio nireus", Trans. R. Entomol. Soc. Lond. (1874): 519–21].

Encloses Thomas Belt’s address.