The history of Oregon, geographical and political : embracing an analysis of the old Spanish claims, the British pretensions, the United States title : an account of the present condition and character of the country and a throrough examination of the project of a national railroad, from the Atlantic to the Pacific ocean / by George Wilkes ; to which is added a journal of the events of the celebrated emigrating expedition of 1843, containing an accunt of the route from Missouri to Astoria, a table of distances, and the physical and political description of the territory and its settlements by a member of the recently organized Oregon legislature ; with an appendix, containing the treaties, diplomatic correspondence and negotiations between Spain, Russia, Great Britain, and the United States, in relation to the North West Coast.