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Subjects
- Marine engineering.[remove]4
- Bombing and gunnery ranges.1
- Coal mines and mining.1
- Commerce--United States.1
- Cruisers (Warships)--United States.1
- Deep diving.1
- Engineers--United States.1
- Evaporation control.1
- Firearms--Sights.1
- Governors (Steam-engine)1
- Inventors & inventions.1
- Inventors--United States.1
- Mines and mineral resources--Equipment and supplies.1
- Mines and mineral resources--United States.1
- Naval gunnery.1
- Railroads--United States.1
- Reconstruction (U.S. history, 1865-1877)1
- Refrigeration and refrigerating machinery.1
- Steam-boiler explosions.1
- Steam-boilers, Marine.1