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Subjects
- Influenza.1
- Medicine--History.1
- Mental health.1
- Meteor showers.1
- Middle class families.1
- Natural history.1
- Navy Island Campaign, 1837-1838.1
- Paleontology--History.1
- Physics--History.1
- Physiology--History.1
- Public works--United States.1
- Railroads--New Jersey.1
- Railroads--Pennsylvania.1
- Second Great Awakening--United States--History.1
- Solar system.1
- Surveying.1
- Tuberculosis.1
- Unitarianism.1