138 Experimenis in Boring for Fresh Water. 
of water, which immediately overflowed at the top, and ow 
the 14th of Nov. 1826, was discharging two gallons a minute, 
at the height of two feet eight inches from the ground, This 
well is tubed to the depth of 194 feet, with a copper tube of 
1h i inches in diameter. There was an ebb and flow of water 
in this well until the winter of 1824, when it was thought ne- 
cessary to bore it deeper, and this appearance ceased, the 
copper tube that was introduced having probably shut out the 
particular vein of water that caused it, The temperature of 
this spring at the depth of 250 feet was 52° Fahr.; at 394 ft 
it is 54°; which is supposed to favour the idea “ that the 
temperature increases as we get more into the interior of the 
Snag 
3. Simpson’s LAE AS 176 feet—cost 440 
dollars—tubed 18 feet—discharges two gallons a minute— 
temperature 52°—begun Noy. 1824, finished Feb. 1825— 
strata, 7 feet clay, 60 red shell, then water—at 140 feet 
struck a thin stratum which magnetized the poles—A fter this 
red perforated gray granite* for a foot or two, and then the 
hell. 
. New Brunswick, 10 feet above the Raritan, through 
sas ground 12 feet—then red shell 208—work left unfinished 
by Mr. Disbrow, it being his own ME and he being 
too much engaged to prosecute it—but the water, in small” 
quantity, rises above the surface. 
a Jersey City, opposite to New-York, surrounded b 
water, began April, 1825, in a well of very neat 
water, 24 feet deep. Perforation 208 feet in rock, ( 
it is named ;) after descending 146 feet, struck severa bs 
veins of water. In November, 1826, they were still boring $ 
water ran over the tube 21 inches, without machinery, and it 
was said, that, by a eg three gallons a minute of excel- 
=~ water, could be raised. 
- Alexandria, Bo red about 250 feet, when water rose 
within 36° feet of the surface: the boring was continued to 
* As this country belongs to the old red sand stone formation, we would 
inquire of those who have opportunities to observe, whether the granite 
and red sand , : 
ner here described, and still less mar clay should se found below granite; 
23 it is described to be i in the second account in the pa’ , é 
