Book review: ‘The Correspondence of Charles Darwin, volume 23 • 1875’

Revising ‘The Movements and Habits of Climbing Plants’ • Writing ‘Insectivorous Plants’ • Beginning research on ‘The Effects of Cross and Self Fertilisation in the Vegetable Kingdom’ • Getting involved in the vivisection debate • The death of Charles Lyell

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’.

Book review: ‘The Correspondence of Charles Darwin, volume 19 • 1871’

A busy year for Darwin: ‘The Descent of Man’ published, with another book on the way, and the final edition of ‘The Origin of Species’.