a Meteorological Journal kept at Carlisle. 425 



stood at 27,970, wind south-west. This was the greatest de- 

 pression of the barometer that had been observed there for many 

 years *. On the 8th and 9th of January 1 820, the barometer 

 stood extremely high at Carlisle, and also at London. At Car- 

 lisle, on the morning of the 8th, it stood at 30,74 ; in the after- 

 noon, 30,80 ; and at night, 30,87. The following morning, 30,94 ; 

 afternoon, 30,86 ; night, 30,75. At London f, on the morning 

 of the 8th of January, the barometer was at 30,42 ; in the after- 

 noon, 30,44 ; at night, 80,52. On the morning of the 9th, 30,59 ; 

 afternoon, 30,51 ; night, 30,32. The mercury had risen at Car- 

 lisle at the afternoon observation of the 8th,~th of an inch ; and at 

 night i^ths more. At London, it had risen r ^ths in the afternoon, 

 and ijjpths more at night. It rose exactly ^ths of an inch during 

 the night of the 8th at both places ; and fell ^ths of an inch at 

 both places in the forenoon, which are striking coincidences. 

 The barometer had fallen ^ths of an inch at the night observa- 

 tion at Carlisle, and ," ths of an inch during the same time at 

 London ; wind north-east on both days, at both places. The 

 extraordinary height of 30,94, which the barometer attained on 

 the morning of the 9th of January 1820, is higher than has been 

 observed at Carlisle at any other period of the register. On 

 comparing Mr PITT'S journal with Mr DANIELL'S, I find that 

 the barometers used at Carlisle and London generally rose and 

 fell with great regularity at the same time, sometimes in the 

 same ratio, and that the maxima and minima results were often 

 on the same day. 



On the 25th of December 1821, a very great depression of 

 the barometer took place at Carlisle. It was so low as 28,26, 

 both in the morning and in the afternoon, and 28,35 at night. 

 It appears that there was a remarkable fall of the barometer, 



* Edinburgh Encyclopaedia, vol. xiv. p. 162. 



f- Meteorological Essays and Observations, by J. F. DANIELL, F.R.S. p. 400. 



