1. University of Pennsylvania, LJS 26 Title: Algorismus Author: Johannes de Sacrobosco Place: Italy Date: [between 1225 and 1275]
2. University of Pennsylvania, Oversize LJS 24 Title: Medical miscellany Author: Isaac Israeli ben Solomon Place: Paris Date: [between 1225 and 1275]
3. University of Pennsylvania, LJS 216 Title: Sphaera mundi Author: Johannes de Sacrobosco Place: Paris Date: [between 1256 and 1270]
4. University of Pennsylvania, Oversize LJS 359 Title: Qānūn fī al-ṭibb Author: Avicenna Place: England Date: [between 1250 and 1299]
5. University of Pennsylvania, Oversize Ms. Codex 1271 Title: Opuscula Author: Thomas Aquinas Place: Paris Date: [between 1269 and 1323]
6. University of Pennsylvania, Ms. Codex 918 Title: Regulae Author: Theobaldus Episcopus Place: Northern Italy Date: [1200?]