Interested in Barkly’s letter about Mauritius. Doubts non-volcanic origin. Urges collection of all forms of terrestrial life to determine whether they are of a former continent or "waifs and strays". He leans to latter view, as snakes and reptiles are different.

Huxley’s address wonderfully "brilliant", but it is a mistake to separate evolutionists from uniformitarians.

Bentham has come out "splendidly" on descent of species.