1. University of Pennsylvania, LJS 191 Title: Commentary on the Ephemerides of Regiomontanus Author: Bartholomäus Mariensüss Date: 1496
3. University of Pennsylvania, Oversize LJS 16 Title: Speculum historiale Author: Vincent of Beauvais Date: 1400
4. University of Pennsylvania, LJS 229 Title: Commentaries on Aristotle and Porphyry Place: Provence Date: [between 1450 and 1499]
5. University of Pennsylvania, Oversize LJS 211 Title: Roger Bigod deed Author: Roger Bigod, 2nd Earl of Norfolk Date: ca. 1201-1205.
6. University of Pennsylvania, Oversize LJS 124 Title: Speculum historiale Author: Vincent of Beauvais Date: ca. 1400.
7. University of Pennsylvania, Oversize LJS 189 Author: Zayn al-Din Gorgani Place: Persia Date: [between 1300 and 1399?]
8. University of Pennsylvania, LJS 26 Title: Algorismus Author: Johannes de Sacrobosco Place: Italy Date: [between 1225 and 1275]
9. University of Pennsylvania, LJS 220 Title: Recueil de diverses recettes médécinales Place: France Date: [between 1475 and 1490]
10. University of Pennsylvania, Oversize LJS 20 Title: Carta executoria de hidalguia a pedimiento Author: Spain Date: 1578
11. University of Pennsylvania, Oversize LJS 278 Title: De materia medica Author: Pedanius Dioscorides Place: Deccan Date: A.H. 1004 (1595) or 1054 (1645)
12. University of Pennsylvania, Oversize LJS 25 Title: Metaphysics Author: Aristotle Place: Italy Date: [1275-1299?]
14. University of Pennsylvania, LJS 236 Title: Thesaurus pauperum Author: John XXI Place: Italy Date: [1450-1499?]
16. University of Pennsylvania, LJS 225 Title: Litterarum simulationis liber Author: Michele Zopello Place: Rome Date: [between 1455 and 1458]
17. University of Pennsylvania, Oversize LJS 231 Title: Statutum habelle communum et terrarum Barge Date: 1346
18. University of Pennsylvania, Oversize LJS 177 Title: Paludi Pontine Place: Italy Date: [1586-1760?]
19. University of Pennsylvania, LJS 188 Title: Ynstruction of the ephimeredes Author: Johannes Schöner Date: 1540
20. University of Pennsylvania, LJS 23 Title: De natura rerum Author: Thomas of Cantimpré Place: France Date: [between 1250 and 1275]
22. University of Pennsylvania, LJS 195 Title: Medical miscellany Place: Germany Date: [between 1450 and 1499]
23. University of Pennsylvania, Oversize LJS 19 Title: Carta executoria de hidalguia a pedimiento Author: Spain Date: 1553
25. University of Pennsylvania, Oversize LJS 24 Title: Medical miscellany Author: Isaac Israeli ben Solomon Place: Paris Date: [between 1225 and 1275]
27. University of Pennsylvania, Oversize LJS 212 Title: Manuscript leaf from expense records Date: 1380.
28. University of Pennsylvania, Oversize LJS 255 Title: De casibus virorum illustrium Author: Giovanni Boccaccio Date: 1425-1475
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: Diaeta salutis Author: Guillaume de Lanicia Place: Šibenik Date: 1449-1453.
33. University of Pennsylvania, Oversize LJS 184 Title: Etymologies 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
42. University of Pennsylvania, LJS 194 Title: Geometry Author: Sylvester II Place: Austria Date: [between 1125 and 1175]
43. University of Pennsylvania, LJS 267 Title: De ludo schacchorum seu de moribus hominum et officiis nobilium ... etc Date: 1409
45. University of Pennsylvania, LJS 198 Title: De simplicibus Author: Arnaldus de Villa Nova Place: Spain Date: [between 1350 and 1380]
46. University of Pennsylvania, LJS 115 Title: Summa de poenitentia Author: Raymond of Penyafort Date: between 1225 and 1275.
49. University of Pennsylvania, Oversize LJS 174 Title: Alphonsine tables Place: Prague Date: 1401-1404.
50. University of Pennsylvania, Oversize LJS 254 Title: Buch von den probierten Kü̈̈nsten Author: Franz Helm Date: 1562
52. University of Pennsylvania, LJS 172 Title: Tabulae directionum et profectionum Author: Regiomontanus Date: 1476
53. University of Pennsylvania, Oversize LJS 239 Title: Pattern-book of bridles, bits and straps Date: 1560
54. University of Pennsylvania, Oversize LJS 266 Title: La generacion de Adam Place: France Date: [between 1440 and 1460?]
55. University of Pennsylvania, Oversize LJS 224 Title: Expositio in libros Posteriorum Aristotelis Author: Paul of Venice Place: Verona Date: [between 1425 and 1475]
59. Conception Abbey and Seminary, CA 19 Title: Decretals of Gregory IX, commentary on Place: undetermined
60. Conception Abbey and Seminary, CA 35 Title: Meteorologica Author: Aristotle Place: France Date: s. XIV, 1300-1399
68. Conception Abbey and Seminary, CA 20 Title: Collectarium Place: Switzerland Date: s. XII, 1100-1199
78. Conception Abbey and Seminary, CA 34 Title: De vita contemplativa Author: Julianus Pomerius Place: Italy Date: s. XV, 1400-1499
86. Conception Abbey and Seminary, CA 11 Title: Sacramentary Place: Switzerland Date: s. XII, 1100-1199