138 Mr. Winch'' s (Observations on his Flora. 



and many of them rare, notwithstanding none of its mountains reach 

 the height of three thousand feet, for it is at a superior elevation 



At Edinburgh, lat. 55° 47', mean temperature, 47° 8'. This calculation has been made 

 from six years' excellent observations, by Professor Playfair ; during this time, the 

 thermometer was never seen above 75° 8'. Vegetation continues from March 20, to Oct. 

 20. The mean temperature of these seven months is, from 55° 8' to 50° 9' ; accordingly, 

 the years are more or less fruitful ; wheat does not ripen if the mean temperature descends 

 to 4-7° 6'. The mean heat of the summers of Scotland in the environs of Edinburgh, is 

 found again on the table lands of New Grenada, so rich in wheat, at 1,400 toises of eleva- 

 tion, and at 4 Q of north latitude. — Humboldt. 



Keswick, lat. 54° 33', mean temperature, 48° 



, of Springs, 46.6' 



Kendal, 54° 17', , 46 . 2 



— , of Springs, 47.2 



Dalton. 

 The range of temperature of the springs in the neighbourhood of Newcastle has been, for 

 the preceding twelve months, from 42° to 49i°. Those which appear most regular are, the 

 Cradle Well, by the road to Jesmond, and the Holy Well, in Jesmond Dene, the courses of 

 which must be in the Seventy-fathom Post, as the miners call it. This stratum of Sandstone is 

 nearly 50 feet thick, and crops out on the south-west side of the Town Moor, covering the 

 high main seam of Coal, which has been worked out from under the springs ; and as the 

 old colliery is now drained, the water cannot rise from below the Coal. 



During the month of April, 1818, the 



Jesmond Springs, stood at 42° 



On the 19th of May, 44 



On the 1st of June, 46 



On the 10th of June, 47 



On the 15th of July, 48 



On the 28th of ditto, 49 



On the 6th of September, 49^ 



On the 1st of November, 49 



On the 15th of ditto, 48 



On the 15th of December, 45 



On the Nth of January, 44 



On the 27th of ditto, 43 



On the 5th of March, 42 



Mean temperature, ascertained by fifty observations, 45|°. 



From a spring rising in the higher part of Newcastle, at an elevation of 180 feet above 

 the level of the sea, the following less correct results were obtained, owing to its flowing 

 for some distance nearer the surface of the earth : — 



During the month of April, 1818, the 



temperature was 42° 



On the 19th of May, 46 



On the 1st of June, 48 



On the 10th of ditto, : 50 



On the 15th of July, 52 



On the 28th of ditto, 54 



On the 6th of September, 56 



On the 1st of November, 53 



On the 15th of ditto, 51 



On the 15th of December, 47 



On the 17th of January, 44 



On the 27th of ditto, 43 



On the 5th of March, 42 



Mean temperature, 49°. 



Winch on the Geographical Distribution of Plants through the Counties of Northum- 

 berland, Cumberland, and Durham. — Pamphlet, Svo., 2d Edition, 1825. 



