41. University of Pennsylvania, LJS 492 Title: Medical miscellany Place: Spain Date: [between 1425 and 1475]
42. University of Pennsylvania, LJS 493 Title: Physics Author: Aristotle Date: between 1150 and 1175.
43. University of Pennsylvania, Oversize LJS 501 Title: Bāriʻ fī aḥkām al-nujūm Author: Haly Abenragel Place: England Date: [approximately 1320]
44. University of Pennsylvania, LJS 502 Title: De mysteriis Author: Ambrose Date: between 1075 and 1125?
45. University of Pennsylvania, LJS 54 Title: Cartulary Author: Magister Contarinus Place: Padua Date: [between 1227 and 1237]
48. University of Pennsylvania, LJS 61 Title: Writs Author: Richard II of England Place: London Date: 1407-1427