Subjects
- Herpetology.1
- Indians of North America -- Canada.1
- Indians of South America.1
- Inventors.1
- Labor movement -- United States -- History -- 19th century.1
- Malaria.1
- Mosquitoes -- Control.1
- Mosquitoes.1
- Naturalists -- Religious life -- Michigan -- Ann Arbor.1
- Nematodes.1
- Philosophy.1
- Plant diseases.1
- Professors.1
- Research.1
- Scientists.1
- Ships.1
- Snakes.1
- Spiritualism -- United States -- History -- 19th century.1
- Students -- Massachusetts -- Cambridge.1
- Sugar cane -- Hawaii.1