http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-realSubject=Animals;f5-realSubject=Children's songs;f6-realSubject=Farms) https://cylinders.syr.edu/xtf/search?docsPerPage%3D100;f4-realSubject%3DAnimals;f5-realSubject%3DChildren's%20songs;f6-realSubject%3DFarms Results for your query: docsPerPage=100;f4-realSubject=Animals;f5-realSubject=Children's songs;f6-realSubject=Farms Thu, 01 Jan 1970 12:00:00 GMT Old McDonald had a farm. https://cylinders.syr.edu/xtf/view?docId=metsmods/belfer_cylinders.80050.metsmods.xml https://cylinders.syr.edu/xtf/view?docId=metsmods/belfer_cylinders.80050.metsmods.xml Thu, 01 Jan 1925 12:00:00 GMT