The Empire of the St. Lawrence: A Study in Commerce and PoliticsOriginally published in 1937 as "The Commercial Empire of the St. Lawrence, 1760 1850" and re issued in its present form in 1956, Donald Creighton's study of the St. Lawrence became an essential text in Canadian history courses. This, his first book, helped establish Creighton as the foremost English Canadian historian of his generation. In it, he examines the trading system that developed along the St. Lawrence River and he argues that the