880 



Eighteenth Memoir on the Law of Storms. 



[Sept. 



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 § 



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Two Barometers on 

 board ; 4 p. m. veered 

 to 120 fms. Sunset 

 strong set to the West- 

 ward. 



! 



1 



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Lightning to the N. 

 W. Bar. 8 a. m. 29 80 ; 

 Noon 29.73; 4 p. m. 

 29.76 ; 8 p. m. 29.73; 

 Ther. 84 to 85°. Riding 

 with 160 fs. cable. 





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