21. University of Pennsylvania, LJS 198 Title: De simplicibus Author: Arnaldus de Villa Nova Place: Spain Date: [between 1350 and 1380]
22. University of Pennsylvania, LJS 115 Title: Summa de poenitentia Author: Raymond of Penyafort Date: between 1225 and 1275.
24. University of Pennsylvania, LJS 172 Title: Tabulae directionum et profectionum Author: Regiomontanus Date: 1476
25. University of Pennsylvania, Oversize LJS 224 Title: Expositio in libros Posteriorum Aristotelis Author: Paul of Venice Place: Verona Date: [between 1425 and 1475]
26. University of Pennsylvania, Oversize LJS 280 Title: Decretales Gregorii IX Author: Catholic Church Place: France Date: [between 1250 and 1299]
27. University of Pennsylvania, LJS 300 Title: Calendarium and ephemerides. Author: Regiomontanus Place: Lambach Date: [circa 1500]
29. University of Pennsylvania, LJS 342 Title: Copies of documents relating to water rights in Milan. Author: Duchy of Milan Place: Milan Date: [after 1444]
30. University of Pennsylvania, LJS 347 Title: De consolatione philosophiae Author: Boethius Place: England Date: [between 1300 and 1350?]