REPORTS FROM THE SECTIONS. 169 
‘The River Darling—the water which should pass 
: through it. 
By H. C. Russenz, B.A., F.R.A.S., Government Astronomer. 
[Read before the Astronomical Section, 1 August, 1879.] - 
small part of the rainfall, after making every allowance, passesdown 
the river. I was not however prepared for the result which I 
Neg 
the Great Dividing Range, extending from Orange northwards 
0 Queensland, and upon this part of it the rainfall in an average 
Year ranges from 20 to 40 inches; in the more western districts 
eves by the Darling the average is from 10 to 20 inches. I 
3 
Proration and be quite within the quantity of water which must 
Mrcies th ibe ide. I have 
— urke the Darling is said to be 60 yards wide. 2 08” 
sumed it to be 200 feet and that instead of the contraction 1 
Girefully measured and was only two- of a mile per pee 
it has been said that in contracted of the river 
it sometimes flows 1} mile per T believe the sma 
: tha ‘ 
Tapid and the river considerably more capacio’® | in- 
fall 18, while at the same time I have taken the er oe 
7 only 2 inches, I find that in order to ny that is 
the river would have to be 100 feet = "flow as a 
* Nould, in order to carry off the rainfall, coated 
