21. University of Pennsylvania, Oversize LJS 447 Title: Masālik al-abṣār fī mamālik al-amṣār Author: Chihab al-Umari Place: Aleppo Date: 1710.
22. University of Pennsylvania, LJS 456 Title: Secretum secretorum Place: Andalusia Date: A.H. 797 (1394)
23. University of Pennsylvania, LJS 457 Title: Logica parva Author: Paul of Venice Place: Perugia Date: 1475.
24. University of Pennsylvania, LJS 458 Title: Abscondita naturae : collecta ab diversis philosophorum et medicorum voluminibus / Author: Marco Girolamo Vida Place: Cremona Date: 1545.
25. University of Pennsylvania, LJS 460 Title: Elements Author: Euclid Place: Egypt Date: A.H. 502 (1108-1109)
26. University of Pennsylvania, LJS 463 Title: Medical miscellany Author: Heinrich Stegmüller Place: Buchau Date: 1443.
27. University of Pennsylvania, LJS 464 Title: Taḥṣīl al-munā fī sharḥ Talkhīṣ Ibn al-Bannāʼ Author: Abū ʻAbd al-Raḥmān Yaʻqūb ibn Ayyūb Mawāhidī Place: Granada Date: A.H. 849 (1445)
28. University of Pennsylvania, LJS 466 Title: Laṭāʼif al-kalām fī aḥkām al-aʻwām Author: Muḥammad Ḥusaynī Date: A.H. 852 (1448)
30. University of Pennsylvania, Oversize LJS 473 Title: L'arte del navegare Place: Venice Date: 1464-1465.