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Subject
- scientific expeditions15
- united states antarctic service expedition (1939-1941)8
- discovery and exploration6
- ellsworth, lincoln, 1880-19514
- byrd, richard evelyn, 1888-19573
- explorers3
- icebreakers (ships)3
- penguins3
- airplanes2
- mittens2
- sea ice2
- antarctica--aerial exploration1
- boots1
- byrd antarctic expedition (2nd : 1933-1935)1
- equipment and supplies1
- gloves1
- hearst, william randolph, 19081
- lockhart, ernest e.1
- masks1
- shipment of goods1