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Subjects
- Zoology.[remove]9
- Birds.3
- Classrooms -- Michigan -- Ann Arbor.2
- Expeditions and surveys.2
- Laboratories.2
- Scientific expeditions.2
- Agriculture.1
- Animals.1
- Archaeological sites -- Yucatán Peninsula.1
- Boats -- Indochina.1
- Conservation of natural resources -- Michigan.1
- Deaf -- Means of communication.1
- Death.1
- Dogsleds.1
- Eskimos.1
- Evolution -- Religious aspects.1
- Evolution.1
- Fish.1
- Fishes -- Great Lakes.1
- Fur trade -- Michigan.1