- Massachusetts--Williamstown1
- Medicine1
- Medicine, Magic, mystic, and spagiric1
- Medicine, Medieval1
- Michael (Archangel)1
- Music--Manuscripts1
- Ninth century1
- Paste papers1
- Pastoral poetry1
- Peter Lombard, Bishop of Paris, approximately 1100-11601
- Popes1
- Prescriptions, formulae, receipts, etc.1
- Primus and Felician, Martyrs1
- Protogothic1
- Saints1
- Scriptum super IV libros Sententiarum (Thomas, Aquinas, Saint)1
- Sententiarum libri IV (Peter Lombard, Bishop of Paris)1
- Sermons, Greek1
- Sermons, Latin1
- Service books (Music)--Catholic Church1