1. University of Pennsylvania, LJS 198 Title: De simplicibus Author: Arnaldus de Villa Nova Place: Spain Date: [between 1350 and 1380]
2. University of Pennsylvania, LJS 426 Title: Qānūn fī al-ṭibb Author: Avicenna Place: Iran Date: [between 1375 and 1399?]
3. University of Pennsylvania, LJS 439 Title: Book on the configuration of the orb Author: Dunash ibn Tamim Place: Seville Date: [13--?]
4. University of Pennsylvania, LJS 462 Title: Algorismus Author: Alexander of Villedieu Place: Spain Date: [between 1300 and 1350]
5. University of Pennsylvania, Oversize LJS 501 Title: Bāriʻ fī aḥkām al-nujūm Author: Haly Abenragel Place: England Date: [approximately 1320]
7. University of Pennsylvania, Oversize Ms. Codex 1226 Title: Ordo judicarius Author: Egidio Foscarari Place: Italy Date: [between 1300 and 1350]
8. University of Pennsylvania, Oversize Ms. Codex 20 Title: Summa dictaminis Author: Thomas of Capua Place: Italy Date: [13--]
9. University of Pennsylvania, Oversize Ms. Codex 615 Title: De planctu naturae Author: Alain de Lille Place: Bohemia Date: [1365]
10. University of Pennsylvania, Oversize Ms. Codex 721 Title: Oculus sacerdotis Author: William of Pagula Place: England Date: [1390-1425]