402 



AUSTRALASIA. 



to the prosperity of the colony, having yielded ores to the value of over £4,000,000 

 between 1846 and 1877. No less productive are the copper mines of Wallaroo, 

 Iloonta, and Kadina, on the east side of Spencer Gulf, while Teetulpa, in the north- 

 east, near the frontier of Victoria, has been enriched by its gold mines. 



Farther north the railway, penetrating inland through the pastures, deserts, 



Kg. 173. — Poet Darwin. 

 Scale 1 : 330,000. 



Depths. 



□ 



Sands exposed 

 at low water. 



Oto 16 

 Feet. 



16 Feet and 

 upwards. 



6 Miles. 



and saline wastes, soon advances beyond the mineral districts, and serves only for 

 the transport of wool and some agricultural produce. But when it has pushed its 

 way across the continent this trunk line will be used by most travellers and 

 immigrants bound for the flourishing regions of east and south-east Australia. 

 The two submarine cables already connecting the northern end of this line with 



