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United States. Coast Guard
Mosby, Olav
5
Ricketts, Noble George, 1896-
5
Smith, Edward Hanson, 1889-
5
Soule, Floyd Melville, 1901-
5
Trask, Parker D. (Parker Davies), 1899-1961
5
Woods Hole Oceanographic Institution
5
Hannon, Lawrence J.
3
Coffin, E. A
1
Ehrman, William E
1
Roberts, H. B
1
Smith, Edward H
1
United States. Bureau of Light-Houses
1
United States. Hydrographic Office
1
United States. Light-House Board
1
United States. Lighthouse Service
1
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Sea ice
42
North Atlantic Ocean
39
Periodicals
37
Sea ice drift
37
Deep-sea sounding
5
Marine meteorology
5
Arctic Ocean
4
Arctic regions
4
Atlantic Ocean
4
Davis Strait
4
Bering Sea
3
Chelan (Cutter)
3
Oceanography
3
Bering Strait
2
Research
2
Arctic regions--Discovery and exploration
1
Beacons
1
Buoys
1
Fog-signals
1
Lighthouses
1
Marine service
1
Navigation
1
Pilot guides
1
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