The editors would like to thank the Donner Foundation, the Draeger Foundation, and the Government of Canada for their timely and generous support of this study. The study was initiated by the editors as part of the research program of the Center of Canadian Studies at the Paul H. Nitze School of Advanced International Studies, The Johns Hopkins University, Washington, D.C., and the emerging affiliated program in North American Studies. Particular appreciation goes to Dr. Barbara G. Doran for the final editing of the entire manuscript. In addition to the individuals acknowledged in each of the chapters, the editors thank those scholars who helped guide the project at various times with constructive criticism and discussion: Tom Barnes, Robert Bothwell, Reuven Brenner, David Calleo, Colin Campbell, Benjamin Ginsberg, Judith Goldstein, Peter Katzenstein, Allan Kornberg, Jonathan Lemco, Seymour Martin Lipset, Charles Lipson, Charles Pearson, Richard Rosecrance, and Sidney Weintraub.