DIRECTIOISr AND FORCE OF WIND 



239 



With- respect to the application of the law of rotation of winds to this locality, 

 the record, containing mostly N. E. and S. W. directions with many calms, does 

 not appear to be sufficiently well suited to give value to any result that might be 

 deduced. 



Occitrrence and Duration of Storms. 

 In the following list all storms are included during Avhich the force of wmd 

 reached the conventional numbers 7 and 8. 



Date. 



Duration. 



Direction. 



Remarks. 



1860. September 1 . . . 



16" 



N. E. 





4,5. 



24 



N. N. E. 





23, 24 . 



20 



N. E. 



Barometer fell about 0'".55. 



" 28, 29, 30, 1 . 



68 



N. E. 





October 6, 7, 8 . 



48 



S. W. 





13, 14 . 



16 



N. E. 



Barometer fell about 0'".4. 



19 . 



4 



N. E. 





31, 1 



28 



N. E. 





Norember 9, 10 



18 



N. E. and S. W. 



Barometer strongly affected ; mer- 

 cury rose 0'".85 after the gale. 



14 . 



16 



N. E. 



Barometer fell slowly. 



16 . 



16 



N. E. 



Barometer fell gradually and slowly. 



22, 23 . 



42 



N. E. 





December 1 . . . 



18 



S. W. 





6, 7, 8, 9, 10, 11 



126 



N. E. 





January 9 . 



4 



N. E. 



Barometer fell about 0'".3. 



13 . 



10 



N. E. 



Barometer fell about 0'".45. 



February 9 . . . 



8 



N. E. 



Barometer fell about 0'°.85. 



24, 25 . 



42 



N. E. and N. 



Barometer slightly affected. 



April 13, 14 . 



14 



S. W. 





17 . . 



2 



N. E. and S. W. 



Barometer rose 0'°.5 after the gale. 



29, 30 . 



10 



N. E. 



Barometer fell about 0'^5. 



May 30 " . . . 



2 



N. E. 





June 16, 17 



38 



S. W. 



Barometer but little affected. 



25, 16 . 



42 



s. w. • 





July 16, 17 . 



28 



s. w. 





Of these 25 storms, which were recorded during 11 months, 19 came from the 

 N. E., and 6 from the S. W. ; their average duration was 26 hours. During more 

 than one-half of these storms the barometer was not or very slightly affected. The 

 storms appear more frequent in winter than in summer. None of the gales noted 

 can be classed among the rotatory storms, excepting that of -November 8 and 9, 

 1860, and that of April 17, 1861 ; during these two storms the wind shifted from 

 N. E. to S. W., with an interval of calm in the latter case. 



