http://www.rssboard.org/rss-specification 720 XTF Search Results (f4-type=Artwork;f5-associated-Lesson=Gamma Ray Impact;f6-subject=Armillary sphere) http://ecuip-xtf.lib.uchicago.edu/xtf/search?f4-type%3DArtwork;f5-associated-Lesson%3DGamma%20Ray%20Impact;f6-subject%3DArmillary%20sphere Results for your query: f4-type=Artwork;f5-associated-Lesson=Gamma Ray Impact;f6-subject=Armillary sphere Thu, 01 Jan 1970 12:00:00 GMT Oronce Fine, De mundi sphaera (Paris, 1542). http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/aristotle-solar-system/aristotle-solar-system.dc.xml Illustration of Oronce Fine, Astronomy personified and an armillary sphere. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/aristotle-solar-system/aristotle-solar-system.dc.xml Thu, 01 Jan 1970 12:00:00 GMT