- Maimonides, Moses, 1135-12041
- Manuscripts, German1
- Manuscripts, Italian1
- Marginalia1
- Massachusetts--Boston1
- Medicine, Magic, mystic, and spagiric--Formulae, receipts, prescriptions1
- Middle Ages1
- Ordinatio (Duns Scotus, John)1
- Parchment1
- Pharmacology1
- Philosophy, Medieval, in literature1
- Physicians1
- Physiology1
- Pigments1
- Plague1
- Portaleone, Abraham ben David, 1542-16121
- Rupert, of Deutz, approximately 1075-11291
- Sententiarum libri IV (Peter Lombard, Bishop of Paris)1
- Sermons1
- Sermons, Latin1