New Haven: Yale University Press, 1998. Octavo, paperback, illustrations.

Contemporaries of the modest and unassuming scientist Joseph Leidy (1823-91) revered him as the supreme consultant in questions relating to human anatomy, paleontology, protozoology, parasitology, anthropology, mineralogy, botany, and numerous other scientific fields. Leidy's achievements and the breadth of his scientific interests and knowledge were astonishing. He seemed, in short, to be the man who knew everything.