41. University of Pennsylvania, LJS 387 Title: al-Qāmūs al-muḥīṭ Author: Fairuzabadi Place: Iran Date: [between 1350 and 1450?]
42. University of Pennsylvania, LJS 388 Title: Mulakhkhaṣ fī al-hayʼah Author: Jaghmini Place: Iran Date: A.H. 786 (1384)
44. University of Pennsylvania, LJS 392 Title: Tafsīr al-Taḥrīr Author: Nizam al-Din al-Nisaburi Place: Iran Date: A.H. 813 (1411)
45. University of Pennsylvania, LJS 393 Title: Sharḥ Fusūl Ibuqrāṭ Author: Abū al-Qāsim ʻAbd al-Raḥmān ibn ʻAlī ibn Abī Ṣādiq al Nīsābūrī Place: Egypt Date: [between 1300 and 1399?]
46. University of Pennsylvania, LJS 394 Title: Ṣiḥāḥ Author: Ismail ibn Hammad al-Jawhari Place: Egypt Date: [13--?]
48. University of Pennsylvania, LJS 398 Title: Maqālah fī khalq al-insān Author: Saʻīd ibn Hibat Allāh ibn al-Ḥusayn Place: Syria Date: A.H. 689 (1290)
49. University of Pennsylvania, LJS 400 Title: Sharḥ-i Zīj Gūrgānī Author: Ali Qushji Place: Iran Date: A.H. 899 (1493-1494)
50. University of Pennsylvania, LJS 403 Title: Alchemical miscellany Author: Ibrāhīm al-Ḥusaynī Place: Herat Date: A.H. 901-904 (1496-1499)