http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;smode=advanced;subject=Silver mines and mining -- United States;subject-join=exact) http://norton.wrhs.org/collections/search?docsPerPage%3D100;smode%3Dadvanced;subject%3DSilver%20mines%20and%20mining%20--%20United%20States;subject-join%3Dexact Results for your query: docsPerPage=100;smode=advanced;subject=Silver mines and mining -- United States;subject-join=exact Thu, 01 Jan 1970 12:00:00 GMT Prospecting for gold and silver in North America. Lakes, Arthur, 1844- 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 Statistics of mines and mining in the states and territories west of the Rocky Mountains. United States Dept. of the Treasury., Raymond, Rossiter W. (Rossiter Worthington), 1840-1918 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 Report of J. Ross Browne on the mineral resources of the states and territories west of the Rocky Mountains. Browne, J. Ross (John Ross), 1821-1875, United States Dept. of the Treasury. 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