21. University of Pennsylvania, LJS 456 Title: Secretum secretorum Place: Andalusia Date: A.H. 797 (1394)
22. University of Pennsylvania, LJS 457 Title: Logica parva Author: Paul of Venice Place: Perugia Date: 1475.
23. University of Pennsylvania, LJS 460 Title: Elements Author: Euclid Place: Egypt Date: A.H. 502 (1108-1109)
24. University of Pennsylvania, LJS 463 Title: Medical miscellany Author: Heinrich Stegmüller Place: Buchau Date: 1443.
25. University of Pennsylvania, LJS 466 Title: Laṭāʼif al-kalām fī aḥkām al-aʻwām Author: Muḥammad Ḥusaynī Date: A.H. 852 (1448)
27. University of Pennsylvania, Oversize LJS 473 Title: L'arte del navegare Place: Venice Date: 1464-1465.
28. 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)
29. University of Pennsylvania, Oversize LJS 47 Title: De institutione musica Author: Boethius Place: France Date: 1490
30. University of Pennsylvania, LJS 49 Title: Tashrīḥ-i Manṣūrī Author: Manṣūr Ibn-Muḥammad Ibn-Aḥmad Place: Persia Date: A.H. 813 (1411)