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A Twenty-second Memoir on the Law of Storms. [No. 1. 



, 1848. 



Ship's Barometer, 

 by Troughton and Simms. 



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Barometer and weather from 1st 

 to 18th July by Mr. B. Pilot 



July, 



4 A. M. 



10a.m. 



4 P. M. 



10p.m. 



S. Ransom, Commanding Megna 

 P. V. 



8th.. 



•• 



29.92 



29.85 



30.00 



86.0 



Pleasant southerly breezes and 

 fine ; p. m. squally from N. W. 



9th.. 



29.80 



.92 



.83 



29.84 



83.0 



Heavy rain and squally from 

 S. S. W. 



10th.. 



.96 



.92 



.91 



•• 



84.30 



Ditto ditto from South ; latter 

 moderate and fine. 



11th.. 



.96 



.96 



.94 



.90 



84.0 



Ditto ditto 



12th.. 



.96 



.92 



.82 



.97 



85.0 



Light S. S. W. breezes and fine 

 weather, sea smooth. 



13th . 



.82 



.86 



.75 



.83 



85.30 



Ditto S. S. E. and fine. 



14th.. 



.86 



.80 



.64 



.73 



85.0 



First part light Easterly airs; 

 middle and latter increasing from 

 East and squally. 



15th.. 



.66 



.66 



.57 



.56 



84.0 



Throughout squally with rain, 

 wind very uncertain, going from 

 East to North, with a high South- 

 erly sea ; 6 p. m. calm, dense bank 

 of clouds to S. W. ; 11 p. m. hard 

 gale at W. S. W. 



16th.. 



.53 



.66 



.68 



.76 



84.0 



First part hard gale with most 

 tremendous sea, 4 A. M. moderat- 

 ing at W. S. W. ; latter moderate, 

 little or no rain or lightning during 

 this gale. 



17th.. 



.65 



.71 



.62 



.68 



83.30 



Moderate breezes W. S. W. to 

 West ; middle and latter high sea, 

 dark rainy weather. 



18th.. 



.65 



.70 



.60 



.63 



83.0 



Ditto winds S. E. to West; 

 squally and rainy throughout. 



