- Manuscripts, Portuguese3
- Marriage3
- Mary, Queen of Scots, 1542-15873
- Mawāqif fī ʻilm al-kalām (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)3
- Medicine--Formulae, receipts, prescriptions3
- Meditations3
- Military art and science3
- Miscellanea3
- Muṭarrizī, Nāṣir ibn ʻAbd al-Sayyid, 1144-1213. Miṣbāḥ fī al-naḥw3
- Mysticism--Islam3
- Netherlands3
- Passion of Jesus Christ3
- Persian literature3
- Peru3
- Philosophy, Indic3
- Piccolomini della Triana, Silvio, 1878-19623
- Piccolomini, Ascanio Francesco3
- Prescriptions, formulae, receipts, etc.3
- Prophets, Pre-Islamic3
- Quadrants (Astronomical instruments)3