Book excerpt: Widdis (geography, U. of Regina) combines descriptive exposition, quantitative tabulation, and structural analysis to cast new light on the settlement of the western parts of North America. Going beyond aggregate census data, he determines the geographical and social origins of migrants, the distance and direction of migration corridors, and geographical destinations in both the US and Canada. He finds that Anglo-Canadians were a much more diverse population than is generally supposed. Canadian card order number: C98-900675. Annotation copyrighted by Book News, Inc., Portland, OR