prevalent Disorders, #c., with Volcanic Emanations. 27 



appears, after the instances mentioned above, where storms 

 were traced 2300 and 3000 miles, more probable to assume 

 the hurricanes in question connected with some exciting heat 

 in the volcanic regions so near at hand. Nor, if this argu- 

 ment holds good, can we refuse a like probability to the action 

 of Vesuvius or Graham's Island as producing a rarefaction 

 sufficient to attract a current of air from England ; which is 

 much less removed from the Mediterranean chimneys than is 

 Calcutta from the Moluccas, or New Orleans from the Ca- 

 ribbees. The hurricanes of June and August, 1833, were felt 

 over France, Germany, Holland, Russia, Spain, Italy, as 

 well as England : the power, therefore, which set the winds 

 in motion, over such an extent of surface, must have been 

 not only universal, but, as observation has proved, one which 

 commenced from the point to which the hurricanes were suc- 

 cessively directed. If the time were to be calculated at the 

 places visited by those hurricanes, it would be found that the 

 supposition is far from hypothetical ; especially if due regard 

 be had to the evidence afforded by meteors, &c, as previously 

 stated. 



The writers in the American Journal (see M. N. H., vii. 291.) 

 mention the occurrence of terrible gales of wind, on Nov. 1 3. 

 1833, between the latitudes 40° and 50° n., and long. 30° and 

 50° w. ; and these gales I have, on the supposition of the 

 meteors being of the same kind as the aurora, connected with 

 previous branches of my disquisition. When considered, 

 however, in connection with the facts previously stated re- 

 specting hurricanes, about the same period, in other parts of 

 the globe, and the examples of terrestrial heat, it would seem 

 to be unphilosophical to suppose that one cause did not 

 operate in the exhibition of so many concurrent phenomena. 

 Two very recent occurrences seem to strengthen the principles 

 above developed. On Sept. 21. 1834, at 11 a.m., occurred a 

 sixth severe earthquake at Chichester. On Sept. 30. the 

 aurora was visible for a considerable period, and was suc- 

 ceeded by meteors ; its character, especially as seen from the 

 southern coasts of England, being well defined. (See VII. 6 15.) 

 The earthquake was probably connected with some volcanic 

 phenomenon at a distance, as, in the other instances, such 

 has been the case ; and, if it should hereafter appear that 

 this is not solely conjectural, the occurrence of the aurora 

 will be still stronger evidence. But I do not rely much on 

 this coincidence, for reasons which I shall show in my next. 



On Sept. 16. *, about 11 p.m., a sudden gust of hot wind, 



* Five days previously (Sept. 11.), a smart shock of earthquake was 

 felt at Hainau in Lower Silesia. 



