Topic
Antarctica
Scientific Expeditions
256
Geology
170
Zoology
100
Natural history
77
Discovery and exploration
61
Oceania
55
Botany
50
Oceanography
49
Description and travel
48
Field notes
37
(1838-1842)
35
United States Exploring Expedition
35
Enderby Land
34
Palmer Peninsula (Antarctica) Survey (1962-1963)
34
(1837-1840)
32
Astrolabe Expedition
32
Zélée (Frigate)
32
Prince Charles Mountains
28
Fossil
26
Paleontology
26
Meteorology
25
Arctic regions
24
Palmer Land
24
Gauss (Ship)
22
Northwest Coast of North America
22
Pacific Ocean
22
Prince Charles Mountains (Antarctica)
22
South America
20
United States Antarctic Program
18
1868-1912
16
Robert Falcon
16
Scotia (Ship)
16
Scott
16
South Pole
16
Birds
15
Hawaii
15
Fishes
13
Oregon
13
Research
13
Technical reports
13
Arctic peoples
12
Mawson Region
12
Reptiles
12
Triassic
12
PS
11
(1910-1913)
10
British Antarctic ("Terra Nova") Expedition
10
Expeditions
10
New Zealand
10
more ...