152. University of Pennsylvania, LJS 494 Title: Sphaera mundi Author: Johannes de Sacrobosco Place: Italy Date: [between 1425 and 1450]
153. 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?]
154. University of Pennsylvania, Oversize LJS 496 Title: Treatise on practical mathematical calculation Place: Italy Date: [between 1475 and 1499]
155. University of Pennsylvania, LJS 497 Title: Canones vel operationes in operando quadrante Place: Italy Date: [circa 1502]
156. University of Pennsylvania, LJS 498 Title: Tsurat ha-arets Author: Abraham bar Hiyya Place: Graz Date: [1542-1599?]
157. University of Pennsylvania, LJS 499 Title: Igeret orḥot ʻolam Author: Abraham ben Mordecai Farissol Place: Italy Date: [after 1525]
158. University of Pennsylvania, LJS 49 Title: Tashrīḥ-i Manṣūrī Author: Manṣūr Ibn-Muḥammad Ibn-Aḥmad Place: Persia Date: A.H. 813 (1411)
160. University of Pennsylvania, Oversize LJS 501 Title: Bāriʻ fī aḥkām al-nujūm Author: Haly Abenragel Place: England Date: [approximately 1320]