Experiments in Boring for Fresh Water. 144 
at granite. All the upper brackish water is excluded by the 
tube, and have now a fine flow of water from the junction of 
- clay and granite. This water is excellent, and is pumped 
up by a small pump, 
“20. New-York. Broad-street. Mr. Tunis Quick. Four 
feet common made ground, or street filling, of the consistence 
of mud ; 6 feet of yellow clay ; 19 feet gravel and quicksand ; 
10 feet of gray clay. Came to granite, fastened the cast- 
iron tube, and water rose to within 7 feet of the surface. Put 
in a pump ; object obtained. 
¢ 
mud ; 65 feet of quicksand and gravel; 15 feet of gray clay, 
Came to granite, and obtained fine water. Tubed 96 feet, 
‘“*22. Dry Dock Company, corner of Avenue D, and 
‘Tenth-street, Six feet common filling ; 10 feet marsh mud j 
12 feet quicksand ; 53 feet of common shore sand and grav- 
el; 6 feet of hardpan; 3 feet of coarse gravel. Stopped at 
the granite, and got plenty of water within 4 feet of the sur- 
face. 
“23. Newark Meadows. Grazing Company, at the 
junction of Belleville and Newark Turnpike, on the sai¢ 
marsh. 'Ten feet of marsh, mud, and roots; 12 feet of fine 
quicksand ; 36 feet blueish gray clay; 6 feet sand; 20 feet 
of ash coloured clay. Met with water: bored 20 feet farther 
in very stiff variegated clay, on the reddish cast. Touched 
the red free stone, and stopped, Water excellent and soft, 
and within three feet of the surface. The reclaiming of salt 
meadows has been a great object obtained. The reclaiming 
of the fresh water springs is of still higher importance. 
‘24, Allen-street, near Hester-street, New-York. an 
in a well 40 feet deep, that had about two feet of brackish 
water in it. Commenced in quicksand: bored 20 feet : 
now and then a stratum of gravel; 2 feet clay, 5 feet of 
coarse gravel and sand. Obtained water, as is always the 
case, before coming to the solid rock. All the waters of 
these last mentioned wells are like the water of the old Tea 
Water Pump.” : : 
Whatever may be thought of the peculiar hypothesis ex- 
hibited in the pamphlet, from which we have partly abstract- 
ed and partly copied the above details, ail will admit, that 
the facts have avery important practical bearing. If we nee 
