1. University of Pennsylvania, Oversize LJS 25 Title: Metaphysics Author: Aristotle Place: Italy Date: [1275-1299?]
2. University of Kansas, MS C189 Title: Philosophy Author: Porphyry and Aristotle Place: Italy Date: [between 1301 and 1400]
3. University of Pennsylvania, Oversize Ms. Codex 760 Title: Nicomachean Ethics Author: Aristotle Place: Italy Date: [14--]
4. University of Pennsylvania, Ms. Codex 765 Title: Organon Author: Aristotle Place: Italy Date: [between 1450 and 1499]