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Subjects
- Zoology.2
- Animals.1
- Birds.1
- Classrooms -- Michigan -- Ann Arbor.1
- Evolution -- Religious aspects.1
- Expeditions and surveys.1
- Indians of South America.1
- Malaria.1
- Mosquitoes -- Control.1
- Mosquitoes.1
- Naturalists -- Religious life -- Michigan -- Ann Arbor.1
- Philosophy.1
- Scientific expeditions.1
- Teaching methods.1
- Television in education.1
- Travelers.1
- Voyages and travels.1