21. University of Pennsylvania, Oversize LJS 478 Title: Kitāb fī istīʻāb al-wujūh al-mumkinah fī ṣanʻat al-asṭurlāb Author: Al-Biruni Date: A.H. 625 (1228)
22. University of Pennsylvania, Ms. Codex 1649 Title: Kāmil al-sināʻah al-tibbīyah Author: 'Ali ibn al-'Abbas al-Majusi Place: Catania Date: [circa 1443-1452]