http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f6-format=Book;f7-subject=Imprints, Early American To 1820;f8-subject=Vaccination) http://catalog.wrhs.org/collections/search?docsPerPage%3D100;f6-format%3DBook;f7-subject%3DImprints,%20Early%20American%20To%201820;f8-subject%3DVaccination Results for your query: docsPerPage=100;f6-format=Book;f7-subject=Imprints, Early American To 1820;f8-subject=Vaccination Thu, 01 Jan 1970 12:00:00 GMT Two letters relative to the Vaccine Institution, addressed to the members of the Hon. the General Assembly of Maryland. Smith, James, 1771-1841, Maryland General Assembly. http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Small pox destroys, vaccination saves, the lives of thousands. Addington, John. http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT