(P12; JOHN C.. H. MINGAYE, 
In Algeria and the Sahara, the arid districts have been fertilized 
with a wonderful effect by artesian irrigation. 
One of the largest artesian wells in the world is situated at 
Huron, North Dakota. It is estimated to yield from 8,000 gallons 
‘to 10,000 gallons per minute, and throws up water to a height of 
100 feet. It is stated, taken even at the lowest figure, enough 
water is given to furnish every man, woman, and child in the 
State of North Dakota with at least four gallons every four hours. 
The pressure is known to be considerably more than 200ibs. to 
the square inch. 
On referring to the list given of the various wells, bores, and 
artesian wells in New South Wales (See Appendix A.) it will be 
observed that many of them yield large quantities of water, 
sufficient for the irrigation of some acres of land. The Native Dog 
artesian bore yields over 2,000,000 gallons per diem, the analysis 
made proving the water to be a good one for irrigation purposes. 
This is also the case with the artesian water at Youngerrina, 
though the yield per diem is smaller, being only 175,000 gallons. 
As previously pointed out, the analyses furnished of a large 
number of the wells and bores, must not be taken as representing 
anything like the average water obtained by sinking and boring, 
as in many cases only suspected waters find their way into the 
Laboratory for examination. It is greatly to be regretted that no 
systematic analyses have been made of the various supplies, as 
they would prove of great value in determining their composition, 
and thus ascertaining their value for stock and irrigation purposes. 
IT understand from Mr. Boultbee, the officer in charge of the 
Water Conservation Branch, that this matter is to be taken in 
hand, and an examination made of the waters of the various wells, 
tanks, artesian and other supplies. 
The analyses of some of the typical soils in the irrigable districts 
would also prove of value as regards the amouut of alkali present. 
The aeration of the artesian waters before use for irrigation is one 
which has received lately much attention in America. 
