381. University of Pennsylvania, Oversize Ms. Codex 827 Title: De improbatione concentricorum et epicyclorum Author: Henry of Langenstein Place: England Date: [between 1362 and 1399]
382. University of Pennsylvania, Ms. Codex 828 Title: Liber de homine Author: Ramon Llull Place: Italy Date: [14--]
383. University of Pennsylvania, Ms. Codex 829 Title: Miscellany Place: Italy Date: [between 1459-1484]
384. University of Pennsylvania, Ms. Codex 838 Title: Erotopaegnion Author: Girolamo Angeriano Place: Naples Date: [1510?]
385. University of Pennsylvania, Ms. Codex 839 Title: Historia gestorum Alexandri pueri magni Place: Germany Date: [1400-1450]
386. University of Pennsylvania, Ms. Codex 840 Title: Orthographia Author: Porcellio Place: Italy Date: 1460.
387. University of Pennsylvania, Oversize Ms. Codex 841 Title: Historia destructionis Troiae Author: Guido delle Colonne Place: Northern Italy Date: [1370?]
389. University of Pennsylvania, Ms. Codex 844 Title: De accidentibus animae rationalis Place: Germany Date: [between 1500 and 1550]
390. University of Pennsylvania, Ms. Codex 845 Title: Commentary on Andria Place: Italy Date: [1500?]