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Subjects
- Geology -- Michigan.[remove]3
- Geology -- Michigan -- Maps.2
- Geology -- Minnesota -- Maps.2
- Botany.1
- Dwellings -- Michigan -- Ann Arbor.1
- Education -- United States.1
- Evolution -- Religious aspects.1
- Fishes -- Michigan.1
- Fishing -- Michigan.1
- Fossils.1
- Geology -- United States.1
- Geology -- Wisconsin -- Maps.1
- Geology.1
- Human beings -- Origin.1
- Indians of North America -- Michigan.1
- Land use -- Michigan.1
- Meteorology.1
- Mines and mineral resources -- Michigan.1
- Natural history.1
- Paleontology.1