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United States. Central Intelligence Agency 12 National Science Foundation (U.S.) 11 National Science Foundation (U.S.). Division of Polar Programs 11 United States. Department of State 9 Hartwig, G. (Georg), 1813-1880 7 United States. Hydrographic Office 6 National Science Foundation (U.S.). Office of Antarctic Programs 5 United States. Congress. Senate. Committee on Foreign Relations 5 Mawson, Douglas, Sir, 1882-1958 4 Scott, Robert Falcon, 1868-1912 4 Shackleton, Ernest Henry, Sir, 1874-1922 4 United States Antarctic Research Program 4 United States. Antarctic Projects Office 4 Cold Regions Research and Engineering Laboratory (U.S.) 3 Cook, Frederick Albert, 1865-1940 3 Hooker, Joseph Dalton, Sir, 1817-1911 3 National Science Foundation (U.S.). Office of Polar Programs 3 U.S. Coast and Geodetic Survey 3 United States Board on Geographic Names 3 United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Territorial and Insular Affairs 3 United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Science 3 United States. Congress. House. Committee on Science. Subcommittee on Basic Research 3 United States. Dept. of State 3 United States. Naval Oceanographic Office 3 Alberts, Fred G. 2 Australasian Antarctic Expedition (1911-1914) 2 Bindschadler, R. A. (Robert A.) 2 Burn Murdoch, W. G. (William Gordon), 1862-1939 2 Charcot, Jean, 1867-1936 2 Colvocoresses, George M. (George Musalas), 1816-1872 2 see all ...

Research 18 Voyages and travels 11 United States Antarctic Research Program 10 Environmental protection 9 Meteorology 9 Ice 8 Marine resources conservation 7 Scientific expeditions 7 Environmental law 6 Environmental policy 6 Natural history 6 Natural resources 6 Oceanography 6 Antarctic Treaty (1959 December 1) 5 Arctic peoples 5 Seals (Animals) 5 Antarctic Treaty (1959) 4 Environmental monitoring 4 Marine pollution 4 United States Antarctic Program 4 Waste disposal in the ocean 4 Whaling 4 1957-1958 3 Atmospheric ozone 3 British Antarctic ("Terra Nova") Expedition (1910-1913) 3 British National Antarctic Expedition (1901-1904) 3 Byrd Antarctic Expedition 3 Byrd Antarctic Expedition 1928-1930) 3 Conservation of natural resources 3 Cook 3 see all ...

Hathi Trust Digital Library

Antarctic 270 The Antarctic 89 Arctic 25 Byrd 10 South Pole 9 Pacific 8 Antarctic Peninsula 5 Indian 4 New Zealand 4 Greenland 3 Northwest Passage 3 Shackleton 3 Antarctic Ocean 2 Arlington 2 Atka 2 Cape Horn 2 Flying Fish 2 Greenwich 2 Hobbs 2 Hooker 2 Norway 2 Patagonia 2 Peacock 2 Pourquoi Pas 2 Pourquoi-Pas 2 Pourquoi-Pas? 2 Sandwich Islands 2 St. Helena 2 Australian Antarctic Territory 1 Bage 1 see all ...

English 269 unknown 1

Antarc* 270 Antarctic 270 Antarctica 26 Arctic 25 South pole 9 Antarctic Peninsula 5 United States Antarctic Program 5 Ice Sheet 4 Sea ice 4 Alaska 3 Greenland 3 National Science Foundation Office of Polar Programs 3 Northwest passage 3 Antarctic Ocean 2 Arctique* 2 North Atlantic 2 Tierra del Fuego 2 Antarctique* 1 Climate change 1 Cold Regions Bibliography Project 1 East Greenland 1 Fridtjof Nansen 1 North Pole 1 Northeast Passage 1 Northern fur seal 1 Phytoplankton 1 Ross Sea 1 Southern Ocean 1 Stonington Island 1 Victoria Land 1 see all ...