The National Geographic Magazine, Volume 92National Geographic Society, 1948 - Geography Indexes kept up to date with supplements. |
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Page 153
... keep the bow upstream . Thus the boatman faces downstream and can keep an eye peeled for half - submerged boulders . By pulling adroitly on one oar or the other , he can keep his craft out of trouble ( Plate IV ) . Shooting the Rapids ...
... keep the bow upstream . Thus the boatman faces downstream and can keep an eye peeled for half - submerged boulders . By pulling adroitly on one oar or the other , he can keep his craft out of trouble ( Plate IV ) . Shooting the Rapids ...
Page 401
... keeps time satisfactorily for you and me . To keep them so exact , the clocks are pro- tected from all outside disturbances . The pendulum clocks tick off their time in an in- sulated vault 30 feet under ground , away from vibrations ...
... keeps time satisfactorily for you and me . To keep them so exact , the clocks are pro- tected from all outside disturbances . The pendulum clocks tick off their time in an in- sulated vault 30 feet under ground , away from vibrations ...
Page 402
... keep the rollers synchronized , their times of rotation are checked with the time signals ( page 412 ) . All over the eastern United States , lines of electric power com- panies are intercon- nected , so that one can draw power from an ...
... keep the rollers synchronized , their times of rotation are checked with the time signals ( page 412 ) . All over the eastern United States , lines of electric power com- panies are intercon- nected , so that one can draw power from an ...
Contents
Scenes of Postwar Finland By La Verne Bradley With illustrations from photographs | 233 |
The Societys New Map of the Caribbean Area Text accompanying special map supple | 523 |
The Societys New Map of the South Central United States Text accompanying special | 845 |
Copyright | |
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