Comments on Rodwell’s discussion of the “struggle for life” with reference to languages and G. H. Lewes’s article in the Cornhill Magazine (Lewes 1860, pp. 445–7). Comments on Rodwell’s account of horses affected by mildewed pasturage, and asks for more information about his white cat.

Observations on his white blue-eyed cat. There is no sign of deafness.

Apropos of ch. 5 of Origin, tells of blind rats found when a Roman bridge was excavated.