- Manuscripts, Armenian1
- Manuscripts, English1
- Manuscripts, Greek (Medieval and modern)1
- Manuscripts, Judeo-Arabic1
- Manuscripts, Oriental1
- Mary, Blessed Virgin, Saint1
- Massachusetts--Williamstown1
- Mathematics, Arab1
- Medicine--Formulae, receipts, prescriptions1
- Meteorologica (Aristotle)1
- Meteorology1
- Monastic libraries1
- Navigation1
- Nuzhat al-nuẓẓār fī ʻilm al-ghubār (Ibn al-Hāʼim, Aḥmad ibn Muḥammad)1
- Nīlakaṇṭha, active 16th century. Nīlakaṇṭhī1
- Palmistry1
- Parchment (Paper)1
- Parva naturalia (Aristotle)1
- Persian language--Grammar1
- Pharmacology1