an artificial Spring of Water, j 
is found at both thofe places, it riles fo high as to overflow the 
furface of the well : all thefe fadts contribute to elfablilh the 
theory above-mentioned. And there is reafon to conclude,, i 
that if limilar experiments were made, artificial fprings, 
riling above ground, might in many places be thus produced 
at fmall expence, both for the common purpofes of life,, 
and for the great improvement of lands by occafionally water- 
ing them. 
