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Field notes
Geology
Alaska
8
Paleontology
8
Canada
6
United States
6
Cape Breton Island
4
Diary
4
Maps
4
Nova Scotia
4
Nulato Hills
4
Ornithology
4
Western Union Telegraph Expedition (1865-1867)
4
Yukon River
4
Aleutian Islands
2
Amchitka Island
2
Atka
2
Attu Island
2
Augustine Island
2
Barachois Creek
2
Bogoslof Island
2
California
2
Conception Bay
2
Fort Yukon
2
Geological surveys--United States
2
Grewingk Glacier
2
Illustrations
2
Kenai Peninsula
2
Kiska Island
2
Kodiak Island
2
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