http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f6-subject=Columbia River -- Commerce) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f6-subject%3DColumbia%20River%20--%20Commerce Results for your query: docsPerPage=100;f6-subject=Columbia River -- Commerce Thu, 01 Jan 1970 12:00:00 GMT Improvement of rivers and harbors: The Pacific Northwest. Mitchell, John H., 1835-1905 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