http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-subject=United States Exploring Expedition, -- (1838-1842)) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f4-subject%3DUnited%20States%20Exploring%20Expedition,%20--%20(1838-1842) Results for your query: docsPerPage=100;f4-subject=United States Exploring Expedition, -- (1838-1842) Thu, 01 Jan 1970 12:00:00 GMT Reply of Col. Abert and Mr. Markoe to the Hon. Mr. Tappan, of the United States Senate. Abert, John James, 1788-1863, National Institute for the Promotion of Science https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT