Topic
Description and travel
45
Scientific Expeditions
Arctic regions
43
Canadian
35
Northwest
35
British
24
Discovery and exploration
24
Northwest Territories
21
To 1900
14
Natural history
10
John
7
Northwest Passage
7
Sir
7
canimp
7
To 1870
6
1787-1865
5
Botany
5
Richardson
5
Travel
5
1824
3
1786-1847
2
1823
2
1860
2
Franklin
2
To 1905
2