of Wells and Springs in Jamaica. ^ 
a gentle afcent as you recede from the fea. In the low part of 
the town the wells are but a few feet deep, and many of them 
brackifh. The heat of the water in fome of them I have 
found as high as 82°; but they were evidently too near the 
Surface not to be affected by the heat of the feafons. As you 
afcend, the wells are deeper, and the temperature is nearly 8o° 
in all of them. What variations there are, come within one 
degree, that is, half a degree lefs than 8o°, or half a degree 
more. They are of different depths, and fome not lefs than 
100 feet ; though, after they are of half that depth, the tem- 
perature is nearly uniform. At the Governor's Pen , which is 
all'o in the low part of the country, a well, which is above 
69 feet deep, is 79!°. There is a well at Half-way-Tree, 243 
feet deep, which is 79 0 . Half-way-Tree is two miles from 
Kingfton, with a very gentle afcent. Near Rock-Fort is a fpring, 
immediately at the foot of the long mountain, which throws 
out a great body of water ; the heat of it is 79 0 . All the places 
mentioned are but very little above the level of the fea, pro- 
bably not more than the depth of the wells at the refpe&ive 
places ; for near Kingfton there are fprings that appear juft 
below the water-mark of the fea, and thofe that fupply the 
wells are probably upon the fame level. 
The temperature of the air«at Kingfton admits hut of fmall 
variation. .The thermometer, at the hotteft time of the day, 
and during the hotteft feafon of the year, ranges from 85° to 
90°; in the cooleft feafon, and obferved about fun-rife, which 
is the coldeft time in the twenty- four hours, it ranges from 
70° to 77 0 . I have feen it once as low as 69°, and two different 
times as high as 91 0 . The annual mean temperature cannot, 
therefore, either much exceed, or tall much ftiort of, 8o°, as 
indicated by the wells. 
I 2 
The 
