http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f5-subject=Altitudes -- United States) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f5-subject%3DAltitudes%20--%20United%20States Results for your query: docsPerPage=100;f5-subject=Altitudes -- United States Thu, 01 Jan 1970 12:00:00 GMT Results of spirit-leveling, fiscal year 1900-'01. Wilson, Herbert Michael, 1860-1920, Renshawe, J. H. (John Henry), 1852-, Douglas, Edward Morehouse, 1855-1932, Goode, Richard Urquhart, 1858-1903, United States Geological Survey. 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