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Subjects
- Land use -- Michigan.1
- Law enforcement -- United States.1
- Law.1
- Limnology -- Great Lakes.1
- Military uniforms.1
- Mines and mineral resources -- Michigan.1
- Nuclear power plants -- Environmental aspects -- Michigan.1
- Offices -- 1931-1940.1
- Pickets.1
- Police -- Michigan.1
- Railroads.1
- Salt industry and trade -- Michigan.1
- Ships -- Great Lakes.1
- Strikes and lockouts -- United States.1
- Strikes.1
- Trade-unions -- Corrupt practices -- United States.1
- Vandalism.1
- World War, 1914-1918.1