The completion of a book, like the launching of a ship, affords an opportunity to thank the many people who have made it all possible.I wish to thank Philip Scranton and my doctoral advisor Walter Licht, who helped me prepare my doctoral thesis and the book manuscript. Michael Frisch, Michael Katz, Bruce Weindruch, and Jonathan Zeitlin have provided critical support and advice. I have spent many hours with my friends and fellow historians Jeff Kerr-Ritchie, Donna Rilling, and Harold VanLonkhuyzen discussing ideas, draft chapters, and research problems. Lys Ann Shore has been a superb editor and guided the manuscript safely into port. Gerry Krieg and Roger Whiteside helped me prepare maps and illustrations. Special thanks to
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.