Michael H. Shank is Professor of the History of Science at the University of Wisconsin, Madison. He is the author of 'Unless You Believe, You Shall Not Understand': Logic, University, and Society in Late Medieval Vienna (1988); the editor of The Scientific Enterprise in Antiquity and the Middle Ages: Readings from Isis (2000); the coeditor, with Peter Harrison and Ronald L. Numbers, of Wrestling with Nature: From Omens to Science (2011); and the author of numerous articles in edited collections and scholarly journals.