http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f5-subject=Ohio. -- Geological Survey) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f5-subject%3DOhio.%20--%20Geological%20Survey Results for your query: docsPerPage=100;f5-subject=Ohio. -- Geological Survey Thu, 01 Jan 1970 12:00:00 GMT Annual report. Geological Survey of Ohio 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 Personnel of the first geological survey of Ohio. Whittlesey, Charles, 1808-1886 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