PRESIDENTIAL ADDRESS. 35D 
from these sources. Hach surface source of supply will 
be now taken in detail. 
Murray and Murrumbidgee Rivers.—The Murray and 
Murrumbidgee are the only rivers in this State that give 
a steady volume of water and can be relied on. Reference 
to the map shows that over the area that can be supplied 
from these rivers in the Murray-Murrumbidgee basin, the 
mean rainfall ranges from 20 inches at the upper to 11 
inches at the lower end. All of the schemes previously 
propounded for the use of these waters provided for taking 
off channels from the river at the point nearest to the 
source that difficulties would allow, the proposed point of 
ofitake on the Murray being slightly below Albury, and on 
the Murrumbidgee slightly below Narandera. It is possible 
to supply the country with water from these points to Gol 
Gol on the Murray, which is only a short distance above 
the confluence of the Darling. The departmental records 
of the discharges of these rivers show that the amount of 
water available is totally inadequate for the supply of the 
whole of this area. The application of the principles already 
put forward of applying the available supply to the most 
arid areas, and that where two sources overlap each should 
be considered in conjunction with the other, necessitates 
a very careful investigation of this area, and perhaps the 
re-casting of the schemes already propounded. As regards 
water supply for stock purposes only, it is probable that 
over the whole area between the Murray and the Mur- 
rumbidgee, west of Corowa and Narandera, there exists a 
good underground supply that can always be drawn upon 
from bores or wells, by pumping in dry seasons, to supple- 
ment the supplies stored in tanks sufficient for all stock 
purposes. If such be proved by putting down a series of 
trial bores, then any channel for the supply of water for 
stock purposes only should be constructed to command the 
