1854.] A Twenty-third Memoir on tlie Law of Storms. 



525 





Barometer. 



7.00 



A. M. 



29.388 



8.00 





29.438 



9.00 





29.468 



10.00 





29.528 



11 00 





29.578 



12.00 





29.598 



4.00 



P. M. 



29.658 



8.00 



it 



29.738 



23rd October. 

 ward until 9.30 a. m. when it began to moderate com- 

 ing round to W. N. W. Noon moderating considerably 

 p. m. 4.00 fresh. W. by N, breeze. 



J. H. Chaike, 

 Commander, Grappler. 



A Register of two Barometers ; one by Calderara the other by Trough- 

 ton and Sim??is ; a Symjpiesometer zoith Thermometer attached by 

 Troughton and Simms ; and an Aneroid by Dent ; during the 

 Hurricane of October 22nd and 23rd, 1851, by Mr. B. Bitot, 

 A. Bedford, River Surveyor, H. C. Surv. Brig Megna, off Mud 

 Boint. 











^3 



Calde- 



T. and 







<ai 



Hour. 



s* 



Symp. 







rara 



Simms 



Wind. 



Remarks. 



(5 





s 





S 



Bar. 



Bar. 







1851 

 Oct. 

 21st 











+0.227 

 Corr. 



+0.024 

 Corr.* 







8 A. M. 



790. 



30.88 



30.08 



29.75 



30.01 



N. E. 



1 Moderate breeze 

 J and cloudy. 





2 P. M. 



80. 



30.78 



30.02 



29.73 



30.00 



Ditto. 





8 P. M. 



80. 



30.76 



30.02 



29.73 



30.00 



Easterly. 



Very gloomy and 

 threatening all 

 round with passing 

 squalls from the 

 eastward. 



22nd 



6 A. M. 



79.5 



30.68 



29.92 



29.60 



29.90 



East. 



Squalls, with thick 

 hazy weather. 





8 



79.5 



30.74 



29.97 



29.68 



29.92 



Ditto. 



Ditto ditto. 





10 



79.5 



30.74 



30.00 



29.68 



29 93 



Ditto. 



Ditto ditto. 





12 Noon. 



78.5 



30.70 



29.95 



29.66 



29.90 



Ditto. 



Much rain, very 





2 P. M. 



78.0 



30.62 



29.90 



29.60 



29.86 



N. E. 



hazy. 

 1 Hard squalls with 

 J much rait). 





4 



78.0 



30.60 



29.85 



29.57 



29.81 



E. N. E. 





6 



78.5 



30.58 



29.82 



29.54 



29.78 



S. S. E. 



Gale commenced. 





8 



79.4 



30.55 



29.82 



29.53 



29.79 



Ditto. 



Gale, hard gusts. 



* Mr. Bedford's table is given as it reached me to allow of the comparison with 

 the Sympiesometer. To compare his Barometer with others, the corrections marked 

 must be made. I regret being unable to give his valuable projection but I shall 

 use it in another place. — H. P. 



