Topic
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
Kootznahoo Inlet
2
Koyukon Indians
2
Koyukuk Mountain
2
Lituya Bay
2
Manuels River
2
Mulgrave
2
Natural history
2
Newfoundland
2
Point Possession
2
Port
2
Port Moller
2
Pribilof Islands
2
Random Island
2
Saint George
2
Salmon River
2
Scientific illustrations
2
Sitka
2
Smith Sound
2
Stratigraphic--Cambrian
2
Topsail
2
more ...