XTF Search Results (docsPerPage=100;expand=subject;f1-subject=Ohio River Valley -- Commerce;smode=advanced;subject=Railroads -- United States;subject-join=exact)

http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;expand=subject;f1-subject=Ohio River Valley -- Commerce;smode=advanced;subject=Railroads -- United States;subject-join=exact) http://norton.wrhs.org/collections/search?docsPerPage%3D100;expand%3Dsubject;f1-subject%3DOhio%20River%20Valley%20--%20Commerce;smode%3Dadvanced;subject%3DRailroads%20--%20United%20States;subject-join%3Dexact Results for your query: docsPerPage=100;expand=subject;f1-subject=Ohio River Valley -- Commerce;smode=advanced;subject=Railroads -- United States;subject-join=exact Thu, 01 Jan 1970 12:00:00 GMT On the railway connections of Philadelphia with the central West: Letters of Prof. Edward D. Mansfield to Job R. Tyson. Mansfield, Edward Deering, 1801-1880 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