Keywords
- Gregorian chants1
- Gregorian chants--Manuscripts1
- Jews1
- Learning and scholarship1
- Manuscript fragments1
- Manuscripts1
- Manuscripts, Dutch1
- Manuscripts, English1
- Manuscripts, Hebrew1
- Missouri--Saint Louis1
- North Africa1
- Parchment (Paper)1
- Sources1
- Thirteenth century1
- Twelfth century1
- Vellum bindings1
- Wooden boards1
- books of hours1
- canticles1
- commentaries1