The National Geographic Magazine, Volume 109National Geographic Society, 1956 - Geography Indexes kept up to date with supplements. |
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Page 246
... 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 249
... 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 439
... 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
Wildlife Adventuring in Jackson Hole 1 | 103 |
Athens to İstanbul 37 | 139 |
Mauritius Island of the Dodo 77 | 179 |
Copyright | |
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