1. University of Pennsylvania, LJS 26 Title: Algorismus Author: Johannes de Sacrobosco Place: Italy Date: [between 1225 and 1275]
2. University of Pennsylvania, Oversize LJS 25 Title: Metaphysics Author: Aristotle Place: Italy Date: [1275-1299?]
4. University of Pennsylvania, LJS 236 Title: Thesaurus pauperum Author: John XXI Place: Italy Date: [1450-1499?]
6. University of Pennsylvania, LJS 225 Title: Litterarum simulationis liber Author: Michele Zopello Place: Rome Date: [between 1455 and 1458]
7. University of Pennsylvania, LJS 23 Title: De natura rerum Author: Thomas of Cantimpré Place: France Date: [between 1250 and 1275]
8. University of Pennsylvania, Oversize LJS 24 Title: Medical miscellany Author: Isaac Israeli ben Solomon Place: Paris Date: [between 1225 and 1275]
9. University of Pennsylvania, Oversize LJS 184 Title: Etymologies Author: Isidore of Seville Place: Catalonia Date: [between 1265 and 1299]
10. University of Pennsylvania, LJS 216 Title: Sphaera mundi Author: Johannes de Sacrobosco Place: Paris Date: [between 1256 and 1270]