2. University of Pennsylvania, Oversize LJS 239 Title: Pattern-book of bridles, bits and straps Date: 1560
3. University of Pennsylvania, LJS 293 Author: Abu Bakr al-Hassar Place: Baghdad Date: A.H. 590 (1194)
4. University of Pennsylvania, LJS 296 Author: Yaḥyá ibn Aḥmad Kāshānī Place: Isfahan Date: A.H. 720 (1320)
5. University of Pennsylvania, Oversize LJS 322 Title: Fragments from Books III-V of Qānūn fī al-ṭibb. Author: Avicenna Date: [12--?]
6. University of Pennsylvania, Oversize LJS 359 Title: Qānūn fī al-ṭibb Author: Avicenna Place: England Date: [between 1250 and 1299]
7. University of Pennsylvania, LJS 35 Title: Decretales Gregorii IX Author: Catholic Church Date: between 1240 and 1260.
9. University of Pennsylvania, LJS 37 Title: Elements Author: Euclid Place: Egypt Date: A.H. 502 (1108-1109)
10. University of Pennsylvania, LJS 380 Title: Pros mathēmatikous Author: Sextus Empiricus Place: Italy Date: [between 1430 and 1450]
11. University of Pennsylvania, LJS 382 Title: Alchemical miscellany Author: Georg Hayniger Place: Vienna Date: [circa 1476]
12. University of Pennsylvania, LJS 384 Title: Philosophia mundi Author: William of Conches Place: Germany Date: [circa 1150]
14. University of Pennsylvania, LJS 386 Title: Mīzān al-ḥikmah Author: Al-Khazini Date: [1250?-1350?]
15. University of Pennsylvania, LJS 388 Title: Mulakhkhaṣ fī al-hayʼah Author: Jaghmini Place: Iran Date: A.H. 786 (1384)
17. University of Pennsylvania, Oversize LJS 391 Title: Kitāb al-Manṣūrī Author: Abu Bakr al-Razi Date: between 1200 and 1225?
18. University of Pennsylvania, LJS 392 Title: Tafsīr al-Taḥrīr Author: Nizam al-Din al-Nisaburi Place: Iran Date: A.H. 813 (1411)
19. 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?]
20. University of Pennsylvania, LJS 395 Title: De proprietatibus rerum Author: Bartholomew Anglicus Date: 1200s.
22. 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)
23. University of Pennsylvania, LJS 400 Title: Sharḥ-i Zīj Gūrgānī Author: Ali Qushji Place: Iran Date: A.H. 899 (1493-1494)
24. University of Pennsylvania, LJS 403 Title: Alchemical miscellany Author: Ibrāhīm al-Ḥusaynī Place: Herat Date: A.H. 901-904 (1496-1499)
25. University of Pennsylvania, LJS 404 Title: Jāmiʻ al-ʻulūm Author: Fakhr al-Din al-Razi Place: Iran Date: [between 1200 and 1399?]
26. University of Pennsylvania, LJS 405 Title: Tasʹhīl al-naẓar wa-taʻjīl al-ẓafar Author: Al-Mawardi Place: Egypt Date: [1250-1350?]
27. University of Pennsylvania, LJS 407 Title: Astronomy Author: Nasir al-Din al-Tusi Date: [between 1500 and 1599?]
28. University of Pennsylvania, LJS 408 Title: Sharḥ al-Jaghmīnī Author: Qāḍī Zāda al-Rūmī Place: Samarkand Date: A.H. 830 (1427)
29. University of Pennsylvania, LJS 409 Title: Kitāb al-Kashf wa-al-bayān. Īḍāḥ al-rumūz fī al-burhān Date: [between 1600 and 1799?]
30. University of Pennsylvania, LJS 410 Title: Sharḥ al-Jaghmīnī Author: Qāḍī Zāda al-Rūmī Place: Iran Date: [between 1400 and 1599?]
31. University of Pennsylvania, LJS 412 Title: Treatise on astronomy Place: Cairo Date: A.H. 950 (1543)
33. University of Pennsylvania, Oversize LJS 417 Title: Qānūn fī al-ṭibb Author: Avicenna Date: A.H. 899-904 (1494-1498)
34. University of Pennsylvania, Oversize LJS 418 Title: Passio sancti Blasii Place: Italy Date: [12--]
39. University of Pennsylvania, LJS 424 Title: Nonus Almansoris cum annotationibus Doctoris S? : varia alia opuscula. Author: Johannes Mellarinus Place: Bologna Date: 1500-1501.
40. University of Pennsylvania, LJS 426 Title: Qānūn fī al-ṭibb Author: Avicenna Place: Iran Date: [between 1375 and 1399?]
41. University of Pennsylvania, Oversize LJS 427 Title: Qānūn fī al-ṭibb Author: Avicenna Place: Persia Date: A.H. 989 (1581)
42. University of Pennsylvania, LJS 42 Title: Bet Elohim. Shaʻar ha-shamayim. Author: Moses Almosnino Place: Salonika Date: [1551]
43. University of Pennsylvania, LJS 430 Title: Carmina de urinarum iudiciis et de pulsibus Author: Bartholomaeus de Montagna Place: France Date: [after 1500]
45. University of Pennsylvania, LJS 434 Title: Jadāvil-i ikhtiyārāt Place: Iran Date: approximately A.H. 912 (1507)
46. University of Pennsylvania, LJS 435 Title: Maqālah fī al-ʻamal bi-al-yad Author: Abu al-Qasim al-Zahrawi Place: A.H. 869 (1464) Date: 1464
47. University of Pennsylvania, LJS 436 Title: Ḍawʼ al-sirāj Author: Maḥmūd ibn Abī Bakr Faraḍī Date: A.H. 723-747 (1323-1347)
48. University of Pennsylvania, LJS 437 Title: Circa instans Author: Matthaeus Platearius Place: Germany Date: [1400?]
49. University of Pennsylvania, LJS 438 Title: Neoplatonic translations Author: Platonic Academy Place: Florence Date: [circa 1475]
50. University of Pennsylvania, LJS 439 Title: Book on the configuration of the orb Author: Dunash ibn Tamim Place: Seville Date: [13--?]