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342 



ON ATrviOSFHERIC WAVES^ ETC 



[Sect. X. 



grea 



similar character. althou2:h 



est symmetry revolves 

 around a fixed point, most probably the nodal point of 

 the great European systems. 



It is highly probable that movements of a somewhat 



presenting very different 

 curves, exist in the southern hemisphere. The November 

 wave is more or less associated with stoi^ms. It hvs been 

 generally preceded by a high barometer and succeeded 

 by a low one, and this low state of the barometer has 

 been accompanied by stormy weather. We are there- 



prepared 



to 



fb 





imilar phenomena in the 



southern hemisphere, in those localities which present 

 similar states of weather, and at seasons when such wea- 

 ther predominates. We have already marked out the 

 two capes in the Southern hemisphere for three-hourly 

 observations : they must doubtless possess very peculiar 



o 



as 



area of the Southern Ocean. It is highly probable that 

 the oscillations, especially at some seasons, are very con- 

 siderable, and vessels visiting them at such seasons would 

 do well to record with especial care the indications of the 

 instruments already alluded to. At present we know hut 

 little of the barometric movements in the Southern hemi- 

 sphere, and e\v,ry addition to our knowledoje in this 



respect will open the way to more important conclusions. 



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