31. University of Pennsylvania, LJS 119 Title: Manuscript leaf from a collection of papal decretals Author: Catholic Church Date: 1300s.
32. University of Pennsylvania, Ms. Codex 88 Title: Dieta salutis Author: Guillaume de Lanicia Place: Šibenik Date: 1449-1453.
33. University of Pennsylvania, Oversize LJS 184 Title: Etymologiae Author: Isidore of Seville Place: Catalonia Date: [between 1265 and 1299]
34. University of Pennsylvania, LJS 232 Title: Trattato delle proportioni et proportionalità Author: Benedetto Varchi Date: 1539
35. University of Pennsylvania, LJS 271 Title: Niccolò di Giovanni Machiavelli receipt Author: Niccolò di Giovanni Machiavelli Date: 1531.
36. University of Pennsylvania, LJS 216 Title: Sphaera mundi Author: Johannes de Sacrobosco Place: Paris Date: [between 1256 and 1270]
37. University of Pennsylvania, LJS 265 Title: Ruralia commoda Author: Pietro de' Crescenzi Date: 1464
38. University of Pennsylvania, LJS 226 Title: Certain astrological and astronomical figures Place: England Date: [1410?]
39. University of Pennsylvania, LJS 215 Title: Scientific miscellany Author: Imbert Feutrier Date: 1511