SUBJECT
Description and travel
11
Human evolution
8
Physical fitness
5
Paleontology
4
Social behavior in animals
4
Antiquities
3
Exercise
3
Explorers
3
Discoveries (in geography)
2
Discoveries in geography
2
Geography
2
History
2
Megalithic monuments
2
Neanderthals
2
Paleolithic period
2
Pirates
2
Prehistoric peoples
2
Stone age
2
Stretching exercises
2
Vampires
2
Werewolves
2
Addresses, essays, lectures
1
Agriculture
1
Anthropology
1
Canada
1
China
1
Cities and towns, Ruined extinct, etc
1
Civilization
1
Cro-Magnon man
1
Cro-Magnons
1
Dictionaries
1
Eskimos
1
Europe
1
Exercises
1
Folklore
1
Germany
1
Great Britain
1
Hittites
1
Hominids
1
Indians of North America
1
International agencies
1
Israel
1
Italy
1
Man, Prehistoric
1
Marine biology
1
Metal-work
1
Metamorphosis
1
Metamorphosis-Folklore
1
Mines and mineral resources
1
Natural history
1
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