HOPKINS'S OBJECTIONS. 483 



Dumfries. At half past ten on Sunday morning, the 

 glass stood at 29 2 9 5 inches ; at the same hour at night it was 

 28| of an inch ; and at a quarter past five on Monday 

 morning, it stood at 27 2 4 of an inch. And from the appear- 

 ance of the surface of the mercury, it must have been 2 2 s ths 

 of an inch lower at least. 



Here, then, we have at Dumfries the barometer falling 

 from 29 5 9 to 27| 5; from half past ten on Sunday morning, to 

 a quarter past five on Monday morning, or two and a quar- 

 ter inches in nineteen and a quarter hours ! And this was 

 where the storm was not the most violent ; and the last pe- 

 riod named was when the storm had passed on. 



Colne. On Sunday the barometer was observed to fall 

 very rapidly from " much rain " to " very dry," on the op- 

 posite side (that is, from 28| inches to 27 !) ; about twelve 

 at night, or half past, the wind began to rise, and to in- 

 crease in violence till about four o'clock, when it blew a 

 complete hurricane. 



Manchester. Here a sudden and rapid fall of the barom- 

 eter was observed, between nine and twelve o'clock, of, it is 

 said, half an inch. 



Rochdale. The storm began about two in the morning, 

 and appeared to be at its greatest height from four to six. 

 About five, the barometer was observed to stand at 27| 

 inches. 



Holmfirth. On Sunday evening the barometer fell rap- 

 idly. A brisk gale blew from the south west, which con- 

 tinued to rise until Monday morning, when it became a 

 complete hurricane. 



A fall in the barometer, from diminished pressure alone, 

 should cool the air, equal to what it would be cooled by 

 rising to a certain height in the atmosphere. At Dumfries, 

 the fall was 2| inches or more ; and at Glasgow, it was pro- 

 bably nearly as much. A rise in the atmosphere, sufficient 



