11. University of Pennsylvania, Oversize Ms. Codex 763 Title: Metaphysics Author: Aristotle Place: Germany Date: [14--]
12. University of Pennsylvania, Ms. Codex 765 Title: Organon Author: Aristotle Place: Italy Date: [between 1450 and 1499]
13. Free Library of Philadelphia, Lewis E 15 Title: Organon Author: Aristotle Place: Italy Date: 1285-1299
14. Free Library of Philadelphia, Lewis E 53 Title: Miscellany Author: John de Breton, Adam of Bockenfield, Aristotle, and John de Seccheville Place: Italy Date: 1250-1280