621. University of Pennsylvania, Oversize LJS 486 Title: Kitāb Alghāz fī al-lughah al-ʻArabīyah Place: Egypt Date: A.H. 720 (1320)
622. University of Pennsylvania, LJS 487 Title: Treatises on astronomical instruments Place: France Date: [between 1500 and 1599]
623. University of Pennsylvania, LJS 488 Title: Summa de arithmetica, geometria, proportioni et proportionalità Author: Luca Pacioli Place: Venice Date: [after 1494]
624. University of Pennsylvania, Oversize LJS 48 Title: Instrumenta feudorum castri Sone : cum privilegio comitatus in personam Don Ioannis et fratrum ac descendentium de Faelis. Place: Verona Date: 1504-1530.
626. University of Pennsylvania, LJS 492 Title: Medical texts Place: Spain Date: [between 1425 and 1475]
627. University of Pennsylvania, LJS 493 Title: Physics (Aristotle) Author: Aristotle Date: between 1150 and 1175.
628. University of Pennsylvania, LJS 494 Title: Sphaera mundi Author: Johannes de Sacrobosco Place: Italy Date: [between 1425 and 1450]
629. 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?]
630. University of Pennsylvania, Oversize LJS 496 Title: Treatise on practical mathematical calculation Place: Italy Date: [between 1475 and 1499]