21. Free Library of Philadelphia, Lewis E 167 Title: Tractatus moralis de virtutibus Author: William Perault Place: England and France Date: 1385-1399
22. Free Library of Philadelphia, Lewis E M 26:4-5 Title: Legal treatise Place: Bologna Date: 1300-1325
23. Free Library of Philadelphia, Lewis E M 26:7 Title: Legal treatise Place: Bologna Date: 1300-1325