http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f70-subject=Earth -- Rotation -- Measurement) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f70-subject%3DEarth%20--%20Rotation%20--%20Measurement Results for your query: docsPerPage=100;f70-subject=Earth -- Rotation -- Measurement Thu, 01 Jan 1970 12:00:00 GMT Significance of the ether-drift experiments of 1925 at Mount Wilson. Miller, Dayton Clarence, 1866-1941 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