Keywords
- Martyrologies1
- Martyrs1
- Mary, Blessed Virgin, Saint19
- Mass1
- Massachusetts--Boston169
- Massachusetts--Williamstown2
- Mathematics4
- Mathematics, Medieval1
- Medicine1
- Medicine, Arab1
- Medicine, Magic, mystic, and spagiric1
- Medicine, Medieval1
- Meditations3
- Metal clasps3
- Meteorology1
- Michigan--Kalamazoo5
- Middle East--Palestine1
- Military art and science1
- Military history, Medieval1
- Miniature books1