The National Geographic Magazine, Volume 113National Geographic Society, 1958 - Geography Indexes kept up to date with supplements. |
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Page 378
... keep an eye on the lowering of the anchor . We are using a two - stage winch system- one 30 - horsepower winch to haul the line up , absorbing its tension , and a smaller one to pick up the slackened rope from the first drum and wind it ...
... keep an eye on the lowering of the anchor . We are using a two - stage winch system- one 30 - horsepower winch to haul the line up , absorbing its tension , and a smaller one to pick up the slackened rope from the first drum and wind it ...
Page 438
Keeps you ACTIVE ! Keeps you SLENDER ! Keeps you STRONG ! Keeps you YOUNG ! Exercycle " RUNS BY ITSELF " TERRIFIC FOR ... keep fit , trim and strong ! MILLIONS CAN NOW ENJOY THE BLESSINGS OF DAILY EXERCISE AT HOME There's a world of ...
Keeps you ACTIVE ! Keeps you SLENDER ! Keeps you STRONG ! Keeps you YOUNG ! Exercycle " RUNS BY ITSELF " TERRIFIC FOR ... keep fit , trim and strong ! MILLIONS CAN NOW ENJOY THE BLESSINGS OF DAILY EXERCISE AT HOME There's a world of ...
Page 473
... keep his delicate seismometer from de- tecting camp vibrations as well as earthquakes , he had it set up in a pit 1,000 feet away from the station . A long tunnel through the snow connected it with the main buildings ( page 447 ) ...
... keep his delicate seismometer from de- tecting camp vibrations as well as earthquakes , he had it set up in a pit 1,000 feet away from the station . A long tunnel through the snow connected it with the main buildings ( page 447 ) ...
Contents
Mans First Winter at the South Pole Cold Fiercer Than Men Had Ever | 439 |
Young Giant of the Far South By Jean and Franc Shor With 37 color | 900 |
My Neighbors Hold to Mountain Ways Blue Ridge People of North | 906 |
Copyright | |
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