http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f8-subject=Trenton Limestone) http://norton.wrhs.org/collections/search?docsPerPage%3D100;f8-subject%3DTrenton%20Limestone Results for your query: docsPerPage=100;f8-subject=Trenton Limestone Thu, 01 Jan 1970 12:00:00 GMT Stratigraphy, structure, and production history of the Trenton Limestone (Ordovician) and adjacent strata in northwestern Ohio. Wickstrom, Lawrence H., Gray, John D., Stieglitz, Ronald D. http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT