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Subjects
- Agriculture.[remove]2
- Aerialists--New York (State)--Niagara Falls.1
- Airships.1
- Bridges.1
- Erosion.1
- Exhibitions.1
- Geological surveys--West (U.S.)1
- Great Fire, Chicago, Ill., 1871.1
- Harbors.1
- Hurricanes--Texas--Galveston--1900.1
- Industrial buildings.1
- Industry--United States.1
- Industry.1
- Labor laws and legislation -- United States.1
- Laborers.1
- Law enforcement -- United States.1
- Lumber industry.1
- Mining--United States.1
- Ocean liners.1
- Petroleum industry--United States.1