This collection of essays demonstrates the width of Darwin's interests and ability as a biologist.
List of plates; Preface; 1. The movement of plants in response to light P. R. Bell; 2. Palaeontology and evolution J. Challenor; 3. Natural selection J. B. S. Haldane; 4. Developments in the study of animal communication P. Marler; 5. Cross- and self-fertilization in plants H. L. K. Whitehouse; 6. Buffon, Lamarck and Darwin: the originality of Darwin's theory of evolution J. S. Wilkie; Notes and references.