Topic
Antarctica -- Discovery and exploration -- Interviews
17
International Geophysical Year (IGY) (1957-1958)
7
Airplanes
5
Arctic regions -- Discovery and exploration -- Interviews
5
Boatmen
5
Boatmen--History
5
Boats and boating
5
Boats and boating--Grand Canyon (Ariz.)
5
Environment
5
Guidebooks
5
Helicopters--Arizona--Grand Canyon
5
Hiking
5
Military
5
Photographers
5
Photography
5
Research
5
1957-1958 -- Interviews
4
International Geophysical Year
4
Polar regions -- Discovery and exploration -- Interviews
4
Antarctica
3
New Zealand
3
Operation Deepfreeze (1955-1956)
3
environmental humanities
3
1888-1957
2
ANU
2
Aeronautics -- Polar regions -- Interviews
2
Antarctica -- Discovery and exploration -- American
2
Antarctica -- Social life and customs
2
Birdsongs — Argentina
2
Birdsongs — Chile
2
Byrd
2
Byrd Antarctic Expedition
2
Dick Barwick
2
Emeritus Faculty
2
Forest birds — Argentina — Identification
2
Forest birds — Argentina — Names
2
Forest birds — Chile — Identification
2
Forest birds — Chile — Names
2
Geology -- Antarctica -- Interviews
2
Georgetown University -- Students
2
Landscape and Nature - Wildlife
2
Little America
2
Mapuche Indians — Folklore
2
MediaObject
2
Photography -- Antarctica -- Interviews
2
Polar regions -- Discovery and exploration
2
Public affairs radio programs -- Washington (D.C.)
2
Richard Evelyn
2
Ronne Antarctic Research Expedition (RARE) (1947-1948)
2
South America
2
more ...