Topic
Antarctica
24
Arctic regions
Arctic peoples
12
Natural history
12
Tropics
10
Discovery and exploration
6
Scientific Expeditions
4
-1521
2
1451-1512
2
America
2
Amerigo
2
Botany
2
Christopher
2
Columbus
2
Conduct of life
2
Description and travel
2
Discovery (Ship : Captain = Robert F. Scott)
2
Fernão de
2
Field service
2
Handbooks
2
Imprint 1743
2
Italian
2
Magalhães
2
Medical
2
Mexico
2
Moral education
2
Navy
2
Survival skills
2
United States
2
Vespucci
2
etc
2
manuals
2