The National Geographic Magazine, Volume 109National Geographic Society, 1956 - Geography Indexes kept up to date with supplements. |
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Page 144
... feet at two points , 148 at a third . The mechanical borer finally got down to 496 feet . ( The deepest hole ever made on the icecap before was 52 feet , by Wegener in 1931. ) Thus we could lower thermometers and make temperature ...
... feet at two points , 148 at a third . The mechanical borer finally got down to 496 feet . ( The deepest hole ever made on the icecap before was 52 feet , by Wegener in 1931. ) Thus we could lower thermometers and make temperature ...
Page 145
... feet below the level of the sea . For the first time we have an accurate estimate of the amount of ice piled up here , approximately 2.7 million cubic kilometers , as I observed earlier . If this volume of ice were to melt away , the ...
... feet below the level of the sea . For the first time we have an accurate estimate of the amount of ice piled up here , approximately 2.7 million cubic kilometers , as I observed earlier . If this volume of ice were to melt away , the ...
Page 151
... feet and made the deepest photographs yet obtained in the Medi- terranean . In the black abyss between 22 and 3 miles below us , the camera revealed few living things , mainly shrimps and one small fish . At 13,320 feet it took a nice ...
... feet and made the deepest photographs yet obtained in the Medi- terranean . In the black abyss between 22 and 3 miles below us , the camera revealed few living things , mainly shrimps and one small fish . At 13,320 feet it took a nice ...
Contents
Airplanes New Industry and Military Defense Speed Progress | v |
In These Telltale and Often Beautiful Relics of Vanished | xviii |
Athens to Istanbul A Journey Through the Heart of the | 37 |
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