208 NOTES. 
NOTES. 
I.—Artusian WELLS AND Water Suppity (Piate XVL.), 
BY JOHN Fatconer, C.K. 
In a paper read by me before the Society, in March, 1884, on 
“ Springs and their Origin,” I there stated that Artesian Water 
would be found at a depth of 200 feet, in the Maranoa District.* 
Circumstances, created by the dry season, induced the Chief 
Engineer for Railways, Mr. H. C. Stanley, to have a well put 
down at Mitchell, and, from the success which attended that 
experiment, he instructed me to put down another at Dulbydilla. 
This well was also successful, water being struck on the top of 
the shale. 
In the first well the water rose to within 10 feet of the sur- 
face, and was allowed to overflow the guide pipe at 20 feet from 
the surface. It was thought, at first, that the overflow would 
have been sufficient to meet the requirements of the Department 
without the necessity of pumping. This well has been tested 
for a depth to 8000 gallons per day. A 6-inch bore has since 
been put down, which has increased the quantity of water over- 
flowing, and which may obviate the necessity of pumping from 
a depth. 
The second bore, at Dulbydilla, was put down 370 feet, 14 feet 
into the upper surface of the shale bed through which the 
Mitchell well was bored. This well, as will be seen on reference 
to the above plate, was commenced at a point 340 feet above the 
well at Mitchell, consequently, the water, which rose 190 feet, is 
accumulated,in this case, on the top of the shale, thereby estab- 
lishing a most important point relating to the geological for- 
mation of the Western Downs, and the depth at which permanent 
artesian water may be obtained by boring in the district lying 
between Miles and Adavale. This information may be briefly 
summed up as follows: 
* Proceedings, Royal Society, Queensland, Vol. I., p. 29. Bris., 1884. 
