Robert G. Weyant, Professor of Psychology at the University of Calgary and former Dean of the Faculty of Arts and Science, received his B.A. from Lafayette College, his M.A. from Kent State University, and his Ph.D. from the University of Iowa. His area of research is the history of psychology, especially in the eighteenth century. He is editor of a facsimile edition of Condillac’s Essay on the Origin of Human Knowledge and has published a number of articles on the history of psychology.