31. University of Pennsylvania, LJS 455 Title: Fawāʼid al-ḥabīb. Zinjār al-ḥukamāʼ Author: Abu ʻAbd Allāh Muḥammad ibn al-Bahāʼ Place: Egypt Date: [1400?]
32. University of Pennsylvania, LJS 456 Title: Secretum secretorum Place: Andalusia Date: A.H. 797 (1394)
33. University of Pennsylvania, LJS 459 Title: Secretum secretorum Place: Mosul Date: [between 1193 and 1211]
34. University of Pennsylvania, LJS 460 Title: Elements Author: Euclid Place: Egypt Date: A.H. 502 (1108-1109)
35. 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)
36. University of Pennsylvania, LJS 465 Title: Poem Author: Ibn Luyun Place: Spain Date: [13--?-14--?]
37. University of Pennsylvania, LJS 467 Title: Hādhā min Khawāṣs al-manāzil wa-hiya fī al-maghrib anwāʼ Place: North Africa Date: [13--?-15--?]
38. University of Pennsylvania, LJS 474 Title: Sharḥ al-Jaghmīnī Author: Qāḍī Zāda al-Rūmī Date: [between 1600 and 1799?]
39. 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)
40. University of Pennsylvania, Oversize LJS 481 Title: Ḥaṭṭ al-niqāb ʻan wujūh aʻmāl al-ḥisāb Author: Aḥmad ibn Ḥusayn Ibn al Qunfudh Place: Morocco Date: [between 14--? and 16--?]