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

Thanks for the drawing.

E. Claparède’s review [of Theory of natural selection, Rev. Cours Sci. 7 (1870): 564–71] is weak.

Looks forward [to Descent] with fear of being "crushed under a mountain of facts!"

On a good criticism of ARW’s views [North Am. Rev. (1870)].

Problems of establishing a permanent residence.

His Presidential Address for Entomological Society will answer A. Murray on geographical distribution of Coleoptera.