41. University of Pennsylvania, LJS 474 Title: Sharḥ al-Jaghmīnī Author: Qāḍī Zāda al-Rūmī Date: [between 1600 and 1799?]
42. 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)
43. 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--?]
44. University of Pennsylvania, Oversize LJS 486 Title: Kitāb Alghāz fī al-lughah al-ʻArabīyah Place: Egypt Date: A.H. 720 (1320)
45. University of Pennsylvania, LJS 495 Title: Kharīdat al-ʻajāʼib wa farīḍat al-gharāʼib Author: Sirāj al-Dīn Abū Ḥafṣ ʻUmar Ibn al-Wardī Date: [between 1450 and 1550?]
46. University of Pennsylvania, LJS 49 Title: Tashrīḥ-i Manṣūrī Author: Manṣūr Ibn-Muḥammad Ibn-Aḥmad Place: Persia Date: A.H. 813 (1411)
48. University of Pennsylvania, CAJS Rar Ms 125 Title: Ḥadīth Author: Ibrāhīm ibn ʻAlī Qalqashandī Date: A.H. 921 (1515)
49. University of Pennsylvania, CAJS Rar Ms 126 Title: Shifāʼ fī taʻrīf ḥuqūq al-Muṣṭafá Author: Qadi Ayyad Date: A.H. 831 (1428)
50. University of Pennsylvania, CAJS Rar Ms 132 Title: Devotional book Date: [between 1800 and 1899?]