James A. Secord is the author of Controversy in Victorian Geology: The Cambrian-Silurian Dispute (Princeton, 1986), and Victorian Sensation: The Extraordinary Publication, Reception, and Secret Authorship of 'Vestiges of the Natural History of Creation' (Chicago, 2000), winner of the 2002 Pfizer Prize of the History of Science Society. He has edited Lyell's Principles of Geology for Penguin.