Topic
Northwest Territories
174
Description and travel
69
Arctic regions
52
Scientific Expeditions
39
Botany
30
To 1900
28
Canada
27
Discovery and exploration
26
Canadian
23
Northwest
23
British
19
Mackenzie (N.W.T.)
16
Natural history
16
Paleontology
16
Plants
16
Mackenzie
15
District of Mackenzie
12
Fossil
12
Mackenzie District
12
Agriculture
10
Alberta
10
Cretaceous
10
Field notes
10
To 1905
10
Vertebrates
10
Glossaries
9
Northwest Passage
9
Prairie Provinces
9
Zoology
9
etc
9
vocabularies
9
Eskimo languages
7
Inuit
7
John
7
Sir
7
Alaska
6
Geese
6
Hunting
6
Indians of North America
6
Mackenzie Delta
6
NW
6
Ornithology
6
SE
6
Tertiary
6
To 1870
6
Trees
6
canimp
6
migratory birds
6
1787-1865
5
Can
5
more ...