http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f183-subject=Natural history -- Great Plains) http://norton.wrhs.org/collections/search?docsPerPage%3D100;f183-subject%3DNatural%20history%20--%20Great%20Plains Results for your query: docsPerPage=100;f183-subject=Natural history -- Great Plains Thu, 01 Jan 1970 12:00:00 GMT Lewis and Clark, pioneering naturalists. Cutright, Paul Russell, 1897- 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