BAROMETRIC PRESSURES ON THE GREAT LAKES 59 



TABLE No. 11. Buffalo, August 5, 1910. 



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Note that in table No. 11 was 88 at 5 p.m., when the wind velocity 



100 



was 44 miles per hour, and only 6 at the preceding midnight, when the wind 



h 2 4 



velocity was 14 miles per hour that is, was increased nearly fifteen- 

 fold between midnight and 5 p.m. The increase in the theoretical wind 

 effect would therefore have been nearly fifteenfold if there had been no 

 change in wind direction. With the actual change in wind direction which 

 occurred, from NW to SW, the theoretical wind effect increased more than 

 fifty-two times, as the change in the sixth column of table No. 11 is from 14 

 to 732. Attention is invited to this case, and in general to an inspection of 

 table No. 11, to secure an appreciation of the complicated law controlling 

 the wind effects. Note the relatively large increases in wind effects produced 

 by moderate increases in high winds, as, for example, the increase from 42 to 



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