Frederick Burkhardt (1912–2007), the founder of the Darwin Correspondence Project, was President of Bennington College, Vermont (1947–57), and President of the American Council of Learned Societies (1957–74). Before founding the Darwin Correspondence Project in 1974, he was already at work on an edition of the papers of the philosopher William James. He received the Modern Language Association of America's first Morton N. Cohen Award for a Distinguished Edition of Letters in 1991, the Founder's Medal of the Society for the History of Natural History in 1997, the Thomas Jefferson Gold Medal of the American Philosophical Society in 2003 and a special citation for outstanding service to the history of science from the History of Science Society in 2005. James A. Secord has served as Director of the Darwin Correspondence Project since 2006. He is also Professor of History and Philosophy of Science at the University of Cambridge and a Fellow of Christ's College. Besides his work for the Darwin Project, his research focuses on the history of science from the late eighteenth to the early twentieth centuries. His book, Victorian Sensation: The Extraordinary Publication, Reception, and Secret Authorship of Vestiges of the Natural History of Creation (2000) won the Pfizer Prize of the History of Science Society. He has recently written on scientific conversation, scrapbook-keeping and public scientific displays.

'How much one learns about Charles Darwin the man, and not just the scientist, as one reads through these volumes. We are all hugely indebted to the editors of the Darwin Correspondence Project.' Michael Ruse, Quarterly Review of Biology

• List of Illustrations; List of Letters; Introduction; Acknowledgments; List of Provenances; Note on Editorial Policy; Darwin/Wedgwood Genealogy; Abbreviations and Symbols; The Correspondence; Appendixes: I. Translations; II. Chronology; III. Diplomas and Testimonials; IV. Presentation List for Movement in Plants; V. Reviews of Movement in Plants; VI. Alfred Russel Wallace Memorial; Manuscript Alterations and Comments; Biographical Register and Index to Correspondents; Bibliography; Notes on Manuscript Sources; Index.