CONCLUDING REMARKS. 115 
south line of the coast of this continent. Indeed, I have 
myself (at various times) crossed over the whole of 
this distance from east to west, from Sydney to Swan 
River. In the early part of the Expedition, 1840, 
the continuation of Flinders range, from Mount 
Arden, was traced and laid down to its termination, 
near the parallel of 29° S. It was ascertained to be 
hemmed in by an impassable barrier, consisting of the 
basin of an immense lake, which I named Lake Tor- 
rens, and which, commencing from the head of 
Spencer’s Gulf, increased in width as it swept to the 
north-west, but subsequently bent round again to the 
north-east, east and south-east, in correspondence 
with the trend of Flinders range, the northern ex- 
tremity of which it completely surrounded in the 
form of a horse-shoe. The shores of this lake I 
visited to the westward of Flinders range, at three 
different points, from eighty to ninety miles apart 
from each other, and on all these occasions I found 
the basin to consist, as far as I could penetrate, of a 
mass of mud and sand, coated on the surface with a 
crust of salt, but having water mixed with it beneath. 
At the most north-westerly point attained by me, 
water was found in an arm of the main lake, about 
two feet deep, clear, and salt as the sea ; it did not 
extend, however, more than two or three hundred 
yards, nor did it continue to the bed of the main lake, 
which appeared, from a rise that I ascended near the 
arm, to be of the same character and consistency as 
before. The whole course of the lake, to the farthest 
i 2 
