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Subjects
- Laboratories.2
- Research.2
- Astronomical observatories.1
- Coal mining.1
- Engineering.1
- Engineers -- Michigan -- Ann Arbor.1
- Industry and education.1
- Mining.1
- Research facilities.1
- Research institutes.1
- Research vessels.1
- Water.1
- Women -- Michigan -- Ann Arbor.1
- Women college students -- Michigan -- Ann Arbor.1
- World War, 1914-1918.1