The National Geographic Magazine, Volume 92National Geographic Society, 1947 - Geography Indexes kept up to date with supplements. |
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Page 684
... aurora as the " north- ern lights , " or aurora borealis ( literally , " dawn of the north " ) , there is of course also an " aurora australis , " or " southern lights , " since the particles that produce the aurora come down into the ...
... aurora as the " north- ern lights , " or aurora borealis ( literally , " dawn of the north " ) , there is of course also an " aurora australis , " or " southern lights , " since the particles that produce the aurora come down into the ...
Page 693
... aurora because the British Broad- casting Corporation's short - wave radio pro- grams are fading badly or are garbled . This is a sign that another stream of particles from the sun is pouring down on the earth and caus- ing a magnetic ...
... aurora because the British Broad- casting Corporation's short - wave radio pro- grams are fading badly or are garbled . This is a sign that another stream of particles from the sun is pouring down on the earth and caus- ing a magnetic ...
Page 696
... aurora's brightness with a photometer . Many amateur observers have assisted the author's aurora research , and the help of many more is needed , both in the United States and in Canada ( page 700 ) . This Aurora Is in the Form of a ...
... aurora's brightness with a photometer . Many amateur observers have assisted the author's aurora research , and the help of many more is needed , both in the United States and in Canada ( page 700 ) . This Aurora Is in the Form of a ...
Contents
Adventures with the Survey Navy By Irving Johnson 131 | vi |
Delhi Capital of a New Dominion By Phillips Talbot With 20 illustrations in color | xiv |
Exploring Americas Great Sand Barrier Reef North CarolinaVirginia By Capt | xx |
Copyright | |
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Admiral Cruzen American Antarctic Antarctica Anthony Stewart arch Army aurora Bay of Whales Baylor Roberts bird boat built camp Canyon Cape century Chief clocks coast color Delhi early earth east eclipse Editor expedition explorers feet flowers forms Frank Hurley garden Geographic Society Kodachrome Geographic Society Painting glacier Hill Indian Island Kodachrome by Luis Lake land light Little America live look Luis Marden miles Mohawk mountains NATIONAL GEOGRAPHIC MAGAZINE National Geographic Society native night Northwest Angle Office pack Pilgrim plane plants Plate Plymouth Pole radio region River rock Ross Sea San Antonio San'a sand ships snow South species Staff Photographer stone summer Ta'izz tion tower town trail trees U. S. Navy Ulithi United Valley village Volkmar Wentzel walls watch weather wild winter Yemen