90 Notes on Hydrology. 



Catherineburgh, 12 inches; Barn aval, 9 inches. The same 

 rule holds good with regard to the coast of America; and the 

 same rule applies also to Australia. In New South Wales 

 the coast rains from Antony and Clarence Rivers to Botany 

 average about 50 inches, whereas inland it ranges from 10 to 

 16 inches per annum. In South Australia — at Mount Lofty, 

 42 inches ; Charleston, 34 inches ; Cape Borda, 27 inches ; 

 Bullaranga, 32 inches; Adelaide, 21 inches, near the coast; 

 but inland, in the valley of the Murray, it ranges from 10 to 

 15 inches, and inland towards Stuart's Creek it is from 6 to 

 10 inches only. 



Then again at Southport, near the coast, on the Overland 

 Telegraph route, the rainfall is about 90 inches ; further 

 inland, Daly Waters, 35 inches ; and further again, at 

 Charlotte Waters, only 10 inches. 



In Victoria our heavy rains are between the coast and the 

 dividing range, and the lightest are on our north-west 

 plains. 



Taking the rainfall for last year, the heaviest, 60 inches, is 

 at a place called Beenak, in the Yarra basin, hemmed in by a 

 kind of horseshoe of mountains, with the open end facing 

 south-westerly towards the sea. Then at the dividing range 

 near Woodend, 49 inches ; Blackwood, 43 inches ; Macedon 

 Nursery, 31*6 inches; Bungaree, 32'9 inches. Then along 

 the coast — Portland, 303 inches ; Warrnambool, 25 inches ; 

 Otway, 30 inches ; Wilson's Promontory, 387 inches. 



Then to the northern side of the dividing range there is 

 a marked reduction — Castlemaine, 24*7 inches ; Crusoe, 24*6 

 inches ; Sandhurst, 21 - 6 inches; Heathcote, 23 inches. Further 

 on the reduction is still more marked — W 7 hroo, 19*7 inches ; 

 Elmore, 19 '7 inches ; and Echuca, 14 "3 inches. If we start 

 again, at Maldon, with 22*9 inches ; Inglewood, 18 inches ; 

 Boort. 16*7 inches ; and Kerang, 13*1 inches. Still again, on 

 the Wimmera — Stawell, 18*1 inches; Horsham, 14'6 inches ; 

 Dimboola, 10*9 inches. 



We have the sea to the south-east, south, and south-west 

 of us. South-east winds bringing moisture are carried over 

 the Australian Alps and mountains of Gippsland, condensing 

 much of its moisture before it reaches us, and still more by 

 the time it reaches the Sandhurst district. Moreover, they 

 come down on us from cool elevated regions to a warmer 

 climate, particularly in summer. Then winds from the south 

 and a little east of south are comparatively cold, and 

 do not carry so much moisture as the more easterly 



