1. University of Pennsylvania, Ms. Codex 17 Bookmark DS ID: DS1445 Title: Liber de spiritu et anima Place: Italy Date: 1463.
2. University of Chicago, Codex Ms. 1264 Bookmark DS ID: DS16902 Title: De anima Author: Francesco Piccolomini Place: Italy Date: M.D.L.x.x.x.i. [1581