Encyclopedias, Almanacs, Transcripts, and Maps
- Mesoamerican Religions: Pre-Columbian Religions
- Mesopotamian Religions
- Mesopotamian Religions: History of Study
- Messianism
- Messianism: An Overview
- Messianism: Jewish Messianism
- Messianism: Messianism in the Muslim Tradition
- Messianism: South American Messianism
- metalloid
- Metals and Metallurgy
- Metals, as Contaminants
- metaphysical poetry
- Metaxas, Joannis
- Meteorological Beings
- Methane Digester
- Methodist Churches
- Methyl Tertiary Butyl Ether
- methylated spirit
- Methylmercury Seed Dressings
- Metternich, Klemens Wenzel Lothar, Fürst von