Topic
Eskimos
8
Indian Ocean
8
North America
8
Antarctica
6
Bering Strait
6
Description and travel
5
Northwest
5
Polynesia
5
United States
5
Alaska
4
Canada
4
Fishes -- Indian Ocean
4
Indian dance
4
John
4
Voyages and travels
4
Whaling
4
(1852-1854)
3
(Frederick Adolph)
3
(James Duncan)
3
(John Milton)
3
(William Hemsley)
3
1796-1873
3
1799-1865
3
1802-1879
3
1803-1873
3
1804-1878
3
1809-1884
3
1810-1888
3
1810-1889
3
1811-1885
3
1811-1887
3
1813-1883
3
1817-1886
3
1840-1918
3
Agave
3
Aleš Hrdlička
3
American Indian
3
Anthropology
3
Archaeology
3
Asa
3
Augustus
3
Bigelow
3
Botanical specimens
3
Boundaries
3
Cactaceae
3
Callitrichaceae
3
Callitriche
3
Cereus
3
Charles
3
Clovis
3
more ...