Flora of Cameroons shakes JDH’s faith in ability to explain past or present migrations. Sees need for a major novel explanation such as natural selection, glacial cold, or continental connections.
Lyell in a bad way about feud with Falconer.
JDH’s opinion of Wallace, Bates, J. E. Gray, Owen, Asa Gray, Lubbock, and Bentham.
Bentham’s Linnean Society address [see 4118].