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 462 Title: Algorismus Author: Alexander of Villedieu Place: Spain Date: [between 1300 and 1350]
3. University of Pennsylvania, LJS 465 Title: Poem Author: Ibn Luyun Place: Spain Date: [13--?-14--?]
4. Boston Public Library, MS q Med.79 Title: Miscellany of works of logic and philosophy : in Latin / Place: Spain Date: between 1325 and 1375].