PROFESSOR FORBES ON THE TEMPERATURE OF THE EARTH. 



205 



Table VI. Shewing the Rate op Increase op Temperature with Depth. 



To complete the comparison of Meteorological data, I subjoin Mr Adie's ob- 

 servations on the mean temperature of the air and the quantity of rain fallen dur- 

 ing the same period, at Canaan Cottage, near Edinburgli, 240 feet above the sea, 

 excepting the months previous to May 1838, which were observed on the Regent 

 Terrace, Calton Hill, at about the same elevation above the sea. 



Table VII. Mean Temperature and Quantity op Rain for the Years 1837-38-39- 

 40-41-42, observed at Edinburgh by Mr Adie. 



VOL. XVI. PART II. 



3f 



