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Subject
- Geology8
- Description and travel2
- Stein, Aurel, Sir, 1862-19432
- Travel2
- Cities and towns1
- Climate1
- Discoveries in geography1
- Discovery and exploration1
- Equipment and supplies1
- Geological surveys1
- Geologists1
- Geology, Stratigraphic1
- History1
- Hydrography1
- Lyman, Benjamin Smith, 1835-19201
- Meteorology1
- Mining engineering1
- Mining engineers1
- Sanborn, F. B. (Franklin Benjamin), 1831-19171
- Social life and customs1