- Massachusetts--Williamstown5
- Materia medica1
- Mathal al-sāʼir fī adab al-kātib wa-al-shāʻir (Ibn al-Athīr, Ḍiyāʼ al-Dīn Naṣr Allāh ibn Muḥammad)1
- Mathematics, Arab2
- Mathematics, Greek1
- Mawāqif fī ʻilm al-kalām (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Medici, Lorenzo de', 1449-14921
- Medicine2
- Medicine, Arab8
- Medicine, Greek and Roman1
- Medicine, Medieval1
- Medicine, Persian1
- Medicine--Study and teaching1
- Mensural notation8
- Metaphysics1
- Mevleviyeh1
- Mexía, Pedro, 1496?-1552?1
- Michaelmas1
- Michigan--Kalamazoo1
- Middle Ages6