1. University of Pennsylvania, Oversize Ms. Codex 110 Title: Alchemical miscellany Place: England Date: [between 1400 and 1450]
2. University of Pennsylvania, Ms. Codex 699 Title: Summa aurea Author: William of Auxerre Place: France Date: [13--]
3. University of Pennsylvania, Oversize Ms. Codex 826 Title: De astronomia Author: Jabir ibn Aflah Place: France Date: [1300?]
4. University of Pennsylvania, Oversize Ms. Codex 827 Title: De improbatione concentricorum et epicyclorum Author: Henry of Langenstein Place: England Date: [between 1362 and 1399]