[ 46 ] 



December. 

 BAROMETER. 



"Greatc/l height 30.36 on the 20th. 

 Leajl 29 13 on the 13th. 

 Mean 29.723. 



THERMOMETER. 



Greatejl heat ifi,".^ on the 27th. 

 Leaji 25'. on the i6th. 

 Mean 3 6". 34. 



RAIN. 



It rained thirteen days and fnowed five during this month ; 

 "both amounted to i.8gi inches. 



In London the greatejl height of the barometer was 30.38 on 

 the 17th ; the lea/i 28.9 on the 4th ; the 7nean 29 64. 



The greateft heat 48° on the 23d; the Uaji 21" on the 12th; 

 the mean 3 6°. 7. 



Rain 1.12+. 



TiTVS far I have given a coinparative view of the ftate of the 

 atmofphere in DubUn and London, from which many impor- 

 tant confequences may be deduced relatively to the progrefs 



and 



