Topic
Greenland
119
Arctic regions
103
Periodicals
80
Geology
76
Scientific Expeditions
71
Natural history
69
Biology
56
Public health
56
Antarctica
50
Iceland
40
Norway
40
History
29
Anthropology
24
Description and travel
23
Gauss (Ship)
22
Zoology
21
Paleobotany
20
Plants
20
Meteorology
19
Discovery and exploration
18
Geophysics
17
Hydrography
17
Birds
15
Botany
15
Ingolf (Ship)
12
Marine biology
12
Denmark
11
Diptera
11
Crustacea
10
German
10
Russia (Federation)
9
Scandinavia
8
(1901-1903)
7
Eskimos
7
Svenska sydpolarexpeditionen
7
1674-1743
6
1837-1908
6
1869-1870
6
Anderson
6
Decapoda (Crustacea)
6
Deutsche Nordpolar-Expedition
6
Early works to 1800
6
Eskimo languages
6
Finland
6
Fram (Ship)
6
Geomagnetism
6
Germany
6
Insects
6
Johann
6
Karl
6
more ...