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Subjects
- Architecture.2
- Architects.1
- Astronomical observatories.1
- Astronomy.1
- Dormitories -- Michigan -- Ann Arbor.1
- Double stars.1
- Dwellings -- Michigan -- Ann Arbor.1
- Gymnasiums -- Michigan -- Ann Arbor.1
- HVAC systems -- Michigan -- Ann Arbor.1
- Historic buildings -- Michigan -- Ann Arbor.1
- Sunspots.1
- Telescopes.1
- Tunnels -- Michigan -- Ann Arbor.1