641. University of Pennsylvania, LJS 56 Title: Logica parva Author: Paul of Venice Place: Padua Date: 1420.
642. University of Pennsylvania, Oversize LJS 57 Title: Astronomical texts Place: Catalonia Date: [1361?]
643. University of Pennsylvania, LJS 59 Title: Dogale Author: Leonardo Loredan Place: Venice Date: 1517.
644. University of Pennsylvania, LJS 60 Title: De chorographia Author: Pomponius Mela Place: Italy Date: [between 1440 and 1450]
645. University of Pennsylvania, LJS 61 Title: Writs Author: Richard II of England Place: London Date: 1407-1427
646. University of Pennsylvania, Oversize LJS 62 Title: Herbal Place: Eastern Mediterranean Date: [14--]
647. University of Pennsylvania, Oversize LJS 64 Title: Novae theoricae planetarum Place: Padua Date: [between 1525 and 1575]
648. University of Pennsylvania, Oversize LJS 97 Title: Commentarius in Claudii Ptolemaei Harmonica Author: Porphyry Place: Spain Date: [between 1560 and 1580?]
649. University of Pennsylvania, CAJS Rar Ms 125 Title: Hadith Author: Ibrāhīm ibn ʻAlī Qalqashandī Date: A.H. 921 (1515)
650. University of Pennsylvania, CAJS Rar Ms 126 Title: Shifāʼ fī taʻrīf ḥuqūq al-Muṣṭafá Author: Qadi Ayyad Date: A.H. 831 (1428)