http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-subject=United States -- Exploring expeditions;f5-subject=Mississippi River -- Sources) http://norton.wrhs.org/collections/search?docsPerPage%3D100;f4-subject%3DUnited%20States%20--%20Exploring%20expeditions;f5-subject%3DMississippi%20River%20--%20Sources Results for your query: docsPerPage=100;f4-subject=United States -- Exploring expeditions;f5-subject=Mississippi River -- Sources Thu, 01 Jan 1970 12:00:00 GMT Summary narrative of an exploratory expedition to the sources of the Mississippi River, in 1820: resumed and completed, by the discovery of its origin in Itasca Lake, in 1832. By authority of the United States. With appendices, comprising ... all of the official reports and scientific papers of both expeditions. Schoolcraft, Henry Rowe, 1793-1864 http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT