prevalent Disorders, $r., with Volcanic Emanations. 131 



vious day. Kingston is in lat. 18° 5' n., long. 76° 30' w. ; 

 Utica in lat. 43° 40' n., long. 75° w. The distance between 

 them is, therefore, not above 1540 miles, which would give 

 about forty-five miles per hour for the velocity of the aerial 

 impulses, supposing that there was no more immediate cause. 

 That there is sometimes a great interval between the localities 

 of earthquakes and distant atmospherical phenomena is in 

 some measure proved by this fact, that, during the whole of 

 1825 * and 1826, Brazil was affected (as in 1833) by a con- 

 tinued drought, which destroyed many head of cattle : even 

 in the rainy season, the heat was excessive, and the showers 

 scanty and partial, but accompanied by violent gusts of wind. 

 It was observed, and remarked to me by a gentleman who 

 resided at Bahia at the time, that at Tampico, during the 

 same period, the greatest alarm prevailed, in consequence of 

 almost incessant earthquakes, the daily repetition of which 

 produced universal consternation : and these earthquakes 

 were more violent at some times than at others; and these 

 periods corresponded, with allowance for the distance, with the 

 atmospherical convulsions in Brazil. From Bahia to Tam- 

 pico it is more than double the distance from Utica to 

 Jamaica. 



On Sept. 1 1„ occurred a violent earthquake at Hainau in 

 Lower Silesia (VIII. 27.), Goldberg, Scheidwigsdorf, and 

 Modelsdorf ; preceded by thunder. 



The passage relating to the earthquake at Chichester on 

 Sept. 21. (VIII. 27.) was written a few days after that 

 event. (Omit in that passage the words " But" and " do 

 not.") But, although I suspected there was a connection 

 with some distant commotion, I was not aware, till five weeks 

 afterwards, that the shock happened during the hurricane 

 that commenced, on Sept. 20., in Dominica. The following 

 particulars have been derived from unquestionable authority, 

 altogether private. Through the kindness of Capt. Polking- 

 horne, of H.M.S. Isis, I am enabled to show that the de- 

 rangements of the atmosphere on Sept. 20. were more 

 extensive than many persons are aware of. On the arrival 

 of the Isis from Ascension, on Nov. 21., I wrote to her com- 

 mander to request he would state whether anything remark- 

 able was noticed in his log about the date of the 20th. This 



* The year 1825 offered many peculiarities, in Europe, corresponding 

 with those of 1833 and 1834. In Nov. 1826, after a long drought, many 

 plants bore a second crop ; the hazel and other trees were in bud, and the 

 hawthorn in bloom, near Newmarket in Suffolk; green peas were gathered, 

 that mouth, at Sudbury ; and there were five rooks' nests built in Catherine 

 Hall Grove, Cambridge, at the end of the month. {Bury and Norwich Post.} 



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