JDH too severe on Duke of Argyll.

Pities JDH on [BAAS] address [see 6099]; Huxley feels JDH will do well and will not pity him.

Thinks Huxley will give an excellent and original lecture on geographical distribution of birds.

Has been working hard on sexual selection and correspondence about it.

Mignonette is sterile with its own pollen but any two distinct plants are fertile together. It is utterly mysterious and not even Pangenesis will explain it.

On Lyell’s book [Principles, 10th ed.].

Wallace’s wonderful cleverness, but he is not cautious enough. CD differs from Wallace on birds’ nests and protection.

A. Murray’s miserable criticism of Wallace [J. Travel & Nat. Hist. 1 (1868): 137–45].