THOSE HOLES IN THE AIR.
The causes of aeroplane accidents, and the dangers of "holes in tho air" were graphically described recently before the Mechanics' Section of tho American Association for the Advancement of Science by W. J. Humphries of the Federal Weather Bureau. Tho dreaded "holes" he said, were tho result of varying speeds of different currents. Ho urged aeroplanists to avoid landing in hollows, to shun bright sunny days when tho earth is well heated, or "thunder-storm weather," and to avoid travelling from ouo sort of surface to another. Sandy soil he described as most productive of the rising currents that produco "holes." Ho also endorsed tho suggestion that there are pockets in the air full of poisonous gases which partially asphyxiate the airman when he rushes through them.
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Dominion, Volume 5, Issue 1360, 10 February 1912, Page 6
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131THOSE HOLES IN THE AIR. Dominion, Volume 5, Issue 1360, 10 February 1912, Page 6
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