Encyclopedias, Almanacs, Transcripts, and Maps
- 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
- Mexico
- Mexico
- Mexico City, Mexico
- Meykaṇṭār
- Meʾir
- Meʾir ben Barukh of Rothenburg
- Mi la ras pa (Milarepa)
- Microbes (Microorganisms)
- Microbial Pathogens
- Microbiotheria (Monitos del Monte)
- Microcoryphia (Bristletails)