http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f70-subject=Amazon River Valley -- Discovery and exploration -- American) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f70-subject%3DAmazon%20River%20Valley%20--%20Discovery%20and%20exploration%20--%20American Results for your query: docsPerPage=100;f70-subject=Amazon River Valley -- Discovery and exploration -- American Thu, 01 Jan 1970 12:00:00 GMT Exploration of the valley of the Amazon: made under the direction of the Navy Department. Herndon, William Lewis, 1813-1857, Gibbon, Lardner., United States Navy Dept. 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