Page:Popular Science Monthly Volume 92.djvu/589

 When Airplanes Whizz Over the Pole

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����T^vd.'' 'S b1?mi'au"abo:4'bofh t^ Robert E. Peary in a new book. "Secrets of Polar

. the Ditm, air above both the earth s poles will be stirred by whirring airplane propellers"

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