Many thanks to those who have helped me in the course of writing this book. I would like to express my wholehearted appreciation to my disser tation supervisor, Dr. Augustine Brannigan, for his support and guidance. His advice and suggestions have immeasurably improved my doctoral dissertation on which this book is based. I want to especially to thank Dr. Frank Atkins for introducing me to co-integration and error-correction methods, as well as Dr. R. Wanner for his advice on various statistical issues and for his constant support and encouragement.
I also wish to acknowledge the assistance I received by the staff of the Provincial Archives of Alberta, the Provincial Archives of Saskatchewan, and the Glenbow Museum, where I did the research for this book. The Provincial Archives of Saskatchewan and the Glenbow Museum also kindly granted me permission to use their collections of photographs of the Provincial Police for this book. This research was made possible by a research grant from the Social Sciences and Humanities Research Council of Canada (SSHRCC). The author also gratefully acknowledges the financial support of the Alberta Historical Resources Foundation, which made the publication of this book possible.
I am grateful to Elaine Grandin and Mark Baron for their friendship and encouragement while I was in Calgary and for their assistance in proofreading drafts of this book. In the preparation of this book, I have also benefited from excellent suggestions by two anonymous reviewers to whom I would like to express my gratitude. I would also like to thank Tiffany Neil for her excellent assistance in editing the bibliography and charts, and in creating the index. Finally I must express my appreciation to my editors at the University of Calgary Press, John King and Peter Enman, for their patience in answering my various questions and for their many valuable editorial suggestions.