1. University of Pennsylvania, LJS 191 Title: Commentary on the Ephemerides of Regiomontanus Author: Bartholomäus Mariensüss Date: 1496
2. University of Pennsylvania, LJS 26 Title: Algorismus Author: Johannes de Sacrobosco Place: Italy Date: [between 1225 and 1275]
5. University of Pennsylvania, LJS 225 Title: Litterarum simulationis liber Author: Michele Zopello Place: Rome Date: [between 1455 and 1458]
6. University of Pennsylvania, Oversize LJS 24 Title: Medical miscellany Author: Isaac Israeli ben Solomon Place: Paris Date: [between 1225 and 1275]
7. University of Pennsylvania, LJS 232 Title: Trattato delle proportioni et proportionalità Author: Benedetto Varchi Date: 1539
8. University of Pennsylvania, LJS 216 Title: Sphaera mundi Author: Johannes de Sacrobosco Place: Paris Date: [between 1256 and 1270]
10. University of Pennsylvania, LJS 194 Title: Geometry Author: Sylvester II Place: Austria Date: [between 1125 and 1175]
11. University of Pennsylvania, LJS 267 Title: De ludo schacchorum seu de moribus hominum et officiis nobilium ... etc Date: 1409
12. University of Pennsylvania, LJS 198 Title: De simplicibus Author: Arnaldus de Villa Nova Place: Spain Date: [between 1350 and 1380]
15. University of Pennsylvania, Oversize LJS 254 Title: Buch von den probierten Kü̈̈nsten Author: Franz Helm Date: 1562
17. University of Pennsylvania, LJS 289 Title: Algorismus Place: Italy Date: [between 1450 and 1475?]
18. University of Pennsylvania, LJS 293 Author: Abu Bakr al-Hassar Place: Baghdad Date: A.H. 590 (1194)
19. University of Pennsylvania, LJS 295 Author: Safi al-Din al-Urmawi Place: Iran Date: A.H. 815 (1412)
20. University of Pennsylvania, LJS 296 Author: Yaḥyá ibn Aḥmad Kāshānī Place: Isfahan Date: A.H. 720 (1320)
21. University of Pennsylvania, LJS 299 Title: Sefer ha-Ḳanon ... etc.. Author: Avicenna Place: Yemen Date: [1400-1525?]
22. University of Pennsylvania, LJS 29 Title: Extratto da un libro de razza da cavalli del re Ferrante vechio de Aragona. Author: Ferdinand I of Naples Place: Venice Date: 1541.
23. University of Pennsylvania, LJS 311 Title: Sefer ha-Ḳanon ... etc.. Author: Avicenna Place: Italy Date: [14--]
24. University of Pennsylvania, Oversize LJS 322 Title: Fragments from Books III-V of Qānūn fī al-ṭibb. Author: Avicenna Date: [12--?]
25. University of Pennsylvania, LJS 345 Title: Inventions or devises. Author: William Bourne Place: Gravesend Date: [circa 1576]
26. University of Pennsylvania, Oversize LJS 359 Title: Qānūn fī al-ṭibb Author: Avicenna Place: England Date: [between 1250 and 1299]
27. University of Pennsylvania, LJS 37 Title: Elements Author: Euclid Place: Egypt Date: A.H. 502 (1108-1109)
28. University of Pennsylvania, LJS 380 Title: Pros mathēmatikous Author: Sextus Empiricus Place: Italy Date: [between 1430 and 1450]
29. University of Pennsylvania, LJS 384 Title: Philosophia mundi Author: William of Conches Place: Germany Date: [circa 1150]
30. University of Pennsylvania, LJS 386 Title: Mīzān al-ḥikmah Author: Al-Khazini Date: [1250?-1350?]
31. 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)
32. University of Pennsylvania, LJS 405 Title: Tasʹhīl al-naẓar wa-taʻjīl al-ẓafar Author: Al-Mawardi Place: Egypt Date: [1250-1350?]
33. University of Pennsylvania, LJS 412 Title: Treatise on astronomy Place: Cairo Date: A.H. 950 (1543)
34. University of Pennsylvania, Oversize LJS 417 Title: Qānūn fī al-ṭibb Author: Avicenna Date: A.H. 899-904 (1494-1498)
36. University of Pennsylvania, LJS 424 Title: Nonus Almansoris cum annotationibus Doctoris S? : varia alia opuscula. Author: Johannes Mellarinus Place: Bologna Date: 1500-1501.
37. University of Pennsylvania, LJS 426 Title: Qānūn fī al-ṭibb Author: Avicenna Place: Iran Date: [between 1375 and 1399?]
38. University of Pennsylvania, Oversize LJS 427 Title: Qānūn fī al-ṭibb Author: Avicenna Place: Persia Date: A.H. 989 (1581)
39. University of Pennsylvania, LJS 430 Title: Carmina de urinarum iudiciis et de pulsibus Author: Bartholomaeus de Montagna Place: France Date: [after 1500]
40. 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
41. University of Pennsylvania, LJS 439 Title: Book on the configuration of the orb Author: Dunash ibn Tamim Place: Seville Date: [13--?]
42. University of Pennsylvania, LJS 441 Title: Miṣbāḥ fī ʻilm al-miftāḥ fī al-ḥikmah al-Ilāhīyah wa-al-ṣināʻah al-ḥikmīyah Author: Al-Jaldaki Place: Aleppo Date: A.H. 970 (1562)
43. University of Pennsylvania, Oversize LJS 442 Title: Buch von den probierten Künsten Author: Franz Helm Place: Bavaria Date: [between 1585 and 1599?]
44. University of Pennsylvania, LJS 443 Title: Collection of texts on the calendar Place: Armenia Date: [after 1416]
45. University of Pennsylvania, Oversize LJS 449 Title: Medical miscellany Place: Germany Date: [circa 1446]
46. University of Pennsylvania, Oversize LJS 450 Title: Compendium of legal texts Place: Italy Date: 1450-1499
47. University of Pennsylvania, LJS 455 Title: Fawāʼid al-ḥabīb. Zinjār al-ḥukamāʼ Author: Abu ʻAbd Allāh Muḥammad ibn al-Bahāʼ Place: Egypt Date: [1400?]
48. University of Pennsylvania, LJS 456 Title: Secretum secretorum Place: Andalusia Date: A.H. 797 (1394)
49. University of Pennsylvania, LJS 457 Title: Logica parva Author: Paul of Venice Place: Perugia Date: 1475.
50. University of Pennsylvania, LJS 459 Title: Secretum secretorum Place: Mosul Date: [between 1193 and 1211]