Book review: ‘The Correspondence of Charles Darwin, volume 22 • 1874’

Revising ‘Coral Reefs’ and ‘The Descent of Man’, continuing work on insectivorous plants, and a second dispute with St George Jackson Mivart.

Book review: ‘The Correspondence of Charles Darwin, volume 20 • 1872’

Publication of the final edition of ‘The Origin of Species’, and of ‘The Expression of the Emotions in Man and Animals’.