in the Isle of Man. 



c 23ii 



1825. 



A.M. P.M. 



Highest state of Thermometer. ... 72 68 



Lowest 30 28 



Mean of 1825 50°i 



From these tables we obtain the following results : 



1822 51°4 



1823 *. 46 | 



1824 49 f 



1825 50 | 



Mean of four Years 49°25 



Correction in consequence of 9 and 1 1 not being 

 the hours of Mean Temperature — 838 



Corrected Mean Temperature 48°312 



Mean Temperature according to Dr Brewster's for- 

 mula, 47°58 



Difference between the formula and observation . + 0°732 



* In the month of June, the thermometer at mid-day, from the 10th to 

 20th, 76 to 78, in the shade. — 100 to 110 in the sun. 



t 17th to 27th July — range of Thermometer, mid-day, in the shade, 

 from 76 to 79. 



