486 PHILOSOPHY OF STORMS. 



of Yorkshire and Lincolnshire ; and the barometer showed 

 diminished atmospheric pressure where the temperature was 

 warm. But it is to be hoped, that at no distant period we 

 shall have observers who will more carefully register me- 

 teorological facts during storms, and that they will come to 

 a better understanding respecting the kind of facts to be 

 noted and the form of giving them. 



Reply to Mr. Hopkins, by a gentleman in Liverpool 

 204. The principal objection made by Mr. Hopkins, against 

 Mr. Espy's theory of storms, is predicated on a statement of 

 Mr. Hopkins himself, which statement is not at all in accord- 

 ance with Mr. Espy's views. 



Mr. Hopkins asserts that " Mr. Espy said, that the storm 

 moved in a line from the south west coast of Ireland to the 

 north east coast of Scotland. If it did so, at its commence- 

 ment, a north east wind should have been found blowing 

 progressively along the line extending by Limerick, Bel- 

 fast and Glasgow, but no indication was given in any of the 

 accounts, of such a wind having been felt." 



I was much surprised, on reading this paragraph, because 

 I had heard Mr. Espy, in his lectures here last summer, 

 strongly controvert the idea that wide extended storms travel 

 towards the north east in this latitude, and in the latitude of 

 Pennsylvania ; and as Mr. Hopkins referred to the explana- 

 tion of the theory in question given by Mr. Espy at the late 

 meeting of the British Association, I immediately turned to 

 the report of his statement in the Athenaeum, and found the 

 following sentence in the very beginning of his paper. "Mr. 

 Espy commenced by stating that he had found in the great 

 storm of the sixth and seventh of January, 1839, that the 

 wind changed and the barometer fell sooner on the north 

 west parts of Great Britain, than on the south east; and 

 from these two circumstances he thinks it highly probable 



