Baromehic Observations. 



467 



My Barometer is a very good one of the kind — it was the fa- 

 vourite one of the late Mr. H. Andrews, of Royston, whicli he 

 used for his Weather Journal. 



The observations of your correspondents, made on the second 

 Monday in the month, will be of great use in finding out the, 

 height of different places from the level of the sea; and will pro- 

 bably lead to a more accurate knowledge of the causes of the 

 amazing changes that take place in the atmosphere, with regard 

 to its weight, temperature, &c. 



Those who keep meteorological journals cannot but have re- 

 marked the mildness of January ; the dryness and amazing baro- 

 metrical pressure during the month of February*; the heat that 

 prevailed towards the end of April, with much lightning and 

 thunder ; and then the cold weather which unmcdiateiy followed, 

 and continues to this day. 



I am, sir, your obedient servant, 



William Rogerson jim. 

 Leighton, June 22, 18:21. 



Sir, — The usual Barometrical observations made at Leighton, 



1 had some expectation of being able to send you the result of 

 Mr. Comfield's observations t'tiis month, but have not received 

 them at present. In this place, I beg to correct your spelling of 



• The mean hciirht of the Barometer at Pocklington, in February, was 

 30 12j ! but in January it was only 2!)-45. 



3 N 2 Mr. 



