31. University of Chicago, Crerar Ms. 12 DS ID: DS16977 Title: Medical texts Author: Guglielmo da Varignana Date: 15--].
32. University of Pennsylvania, Halper 454 DS ID: DS25776 Title: Medical texts Date: 11th century-13th century?
33. University of Pennsylvania, Halper 447 DS ID: DS25854 Title: Medical texts Date: 11th century-12th century?