31. University of Pennsylvania, Ms. Coll. 591 Folder 21 DS ID: DS1774 Title: Liber aggregatus in medicinis simplicibus Author: Serapion the Younger Date: ca. 1300.
32. University of Pennsylvania, Ms. Coll. 591 Folder 8 DS ID: DS1799 Title: Dieta salutis Author: Guillaume de Lanicia Date: 1300s.