The National Geographic Magazine, Volume 111National Geographic Society, 1957 - Geography Indexes kept up to date with supplements. |
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Page 105
... fields arable . An engine , secured at the top of the field , pulls plow and harrow straight uphill on a wire . Over most of western Norway tillable soil is totally absent . Less than two percent of fjordland can be plowed . Stony Fields ...
... fields arable . An engine , secured at the top of the field , pulls plow and harrow straight uphill on a wire . Over most of western Norway tillable soil is totally absent . Less than two percent of fjordland can be plowed . Stony Fields ...
Page 198
... field . " " In that case , " said Holmes , " we're in per- fect agreement . Let's head back to the barn . " As the fog billowed in rapidly from the northeast , advancing steadily upon Cold Bay airstrip , Durham maneuvered the big ship ...
... field . " " In that case , " said Holmes , " we're in per- fect agreement . Let's head back to the barn . " As the fog billowed in rapidly from the northeast , advancing steadily upon Cold Bay airstrip , Durham maneuvered the big ship ...
Page 205
... field crew runs a line of levels to determine runway elevations . Later the party will measure the height of obstruc- tions around the field . Using such data , the Civil Aeronautics Administration sets the load limit for outgoing air ...
... field crew runs a line of levels to determine runway elevations . Later the party will measure the height of obstruc- tions around the field . Using such data , the Civil Aeronautics Administration sets the load limit for outgoing air ...
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