http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f8-subject=Coal mines and mining -- Pennsylvania -- History) http://norton.wrhs.org/collections/search?docsPerPage%3D100;f8-subject%3DCoal%20mines%20and%20mining%20--%20Pennsylvania%20--%20History Results for your query: docsPerPage=100;f8-subject=Coal mines and mining -- Pennsylvania -- History Thu, 01 Jan 1970 12:00:00 GMT Coal & coke research packet for southwestern Pennsylvania. Morris, Jean Sansenbaugher, 1927- 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