Subjects
- Labor movement -- United States -- History -- 19th century.1
- Military camps.1
- Nematodes.1
- Picnics.1
- Plant diseases.1
- Professors.1
- Research.1
- Scientists.1
- Ships.1
- Snakes.1
- Soldiers -- Michigan.1
- Spanish-American War, 1898.1
- Spiritualism -- United States -- History -- 19th century.1
- Sugar cane -- Hawaii.1
- Technological innovations -- United States.1
- Tourism.1
- Travelers.1
- Voyages and travels.1
- Wake Island.1
- Women -- History -- Australia.1