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Subject
- Discovery and exploration[remove]7
- Geologists7
- Explorers4
- Description and travel3
- History3
- Cook, Frederick Albert, 1865-19402
- Discoveries in geography2
- Dunn, Robert, 1877-19552
- Hayden, F. V. (Ferdinand Vandeveer), 1829-18872
- Mountaineering2
- Science and state2
- Travel2
- American1
- English1
- Eskimo languages1
- Geological Survey (U.S.)1
- Geology1
- Hubbard, Bernard Rosecrans, 1888-19621
- Indians of North America1
- Inuit language1