Rationalizing Epidemics is a superb work of scholarship. By contextualizing his deep and thorough research in original documents within the larger literature on the history and nature of epidemics, Jones has produced a profound account of how epidemics are social and cultural phenomena, not just biological. This book will be of great interest to scholars of American Indian history and the history of medicine, and with its engaging and accessible writing style, it promises to be a book that students and the general public will appreciate as well.