66 NOTES OF A JOURNEY ON THE DARLING 
sand begins from near the surface, dark clay being absent, reach 
. 
rise in the older “formations by which the water is, as it were 
dammed back and brought to the surface. Still in the same 
direction we reach the region of the mud springs on the Warreg? 
and Parco Rivers, which indicate a considerable head of press 
in the water that causes them. About 80 miles a little to the 
which also has sufficient pressure to carry the water abore fe 
surface, and which is described in another part of this pape? 
Tourale, between Bourke and Louth, I was told there is 4 i<— 
_ well, giving large quantities of water, but as my appralse® 
work did not allow me to inspect it I was unable to got many 
particulars. It is situated about 40 miles west of the pa 
but how deep it is, what is the quantity of water flowing out, 
the strata through which it has been sunk, I was unable err 
The general fall of the country as shown by my own notes theit 
distance to which dams throw back the water per foot of “a 
height, and the general direction of the rivers, is to the osegee’? in 
and is not more than 1 foot nor less than 6 inches to the ® have 
all the Darling country from Queensland to Louth, where I ri 
had an opportunity of travelling. The fall is remarkably i ee 
and I think 9 inches to the mile is as nearly as possib s 
That all these Springs and wells draw their supplies from 
bl } 8 very 
