12) Antarctic Circle. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...The parallel of latitude approximately 66°33 south. It forms the boundary between the South Temperate and South Frigid zones....

13) Australian Antarctic Territory. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...A large section of Antarctica claimed by Australia since 1931. It extends from longitude 45° east to longitude 160° east not including Adelie Coast. The claim is...

14) Antarctica. The Columbia Encyclopedia, Sixth Edition. 2001
...Antarctica, (antark´tik, -ar´tik) (KEY) , the fifth largest continent, c.5,500,000 sq mi (14,245,000 sq km), asymmetrically centered on the South Pole and almost...

15) Antarctica. The World Factbook. 2003
...commercial operators and British and Russian national expeditions began exploring the Antarctic Peninsula region and other areas south of the Antarctic Circle. Not...

16) Southern Ocean. The World Factbook. 2003
...Atlantic Ocean, Indian Ocean, and Pacific Ocean. The Southern Ocean extends from the coast of Antarctica north to 60 degrees south latitude, which coincides with...

17) 1928-30. 2001. The Encyclopedia of World History
...1928-30 First Antarctic flights by Hubert Wilkins; he mapped large portions of the continent. 1 1928-30 Richard E. Byrd led a large expedition equipped with airplanes...

18) Mawson, Sir Douglas. The Columbia Encyclopedia, Sixth Edition. 2001
...Mawson, Sir Douglas, 1882-1958, Australian antarctic explorer and geologist, b. England. His first geographical expedition was to the New Hebrides Islands as a geologist...

19) Ronne, Finn. The Columbia Encyclopedia, Sixth Edition. 2001
...Ronne, Finn, 1899-1980, Norwegian-American Antarctic explorer. Ronne graduated from college in Norway in 1922 and immigrated to the United States. His first of nine...

20) Antarctica. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...A continent lying chiefly within the Antarctic Circle and asymmetrically centered on the South Pole. Some 95 percent of Antarctica is covered by an icecap averaging...