We had at first found the watercourses going to the south of west, then west, north-west, north, and now north-east, east and south-east.

I had, at the same time, observed all around this mountain mass, the appearance of the bed of a large lake, following the general course of the ranges on every side, and receiving, apparently, the whole drainage from them.
On its western, and north-western shores, I had ascertained by actual examination, that its basin was a very low level, clearly defined, and effectually inclosed by an elevated continuous sandy ridge, like the outer boundary of a sea-shore, its area being of immense extent, and its bed of so soft and yielding a nature, as to make it quite impossible to cross it.

All these points I had decided positively, and finally, as far as regards that part of Lake Torrens, from near the head of Spencer's Gulf, to the most north-westerly part of it, which I visited on the 14th of August, embracing a course of fully 200 miles in its outline.

I had done this, too, under circumstances of great difficulty, toil, and anxiety, and not without the constant risk of losing my horses, from the fatigues and privations of the forced labours I was obliged to impose upon them.
Having ascertained these particulars, and at so much hazard, relative to Lake Torrens, for so great a part of its course, what conclusion could I arrive at with regard to the character of its other half to the north-east, and east of Flinders ranges, as seen from Mount Hopeless, and Mount Serle points, nearly ninety miles apart! The appearances from the ranges were similar; the trend of all the watercourses was to the same basin, and undoubtedly that basin, if traced far enough, must be of nearly the same level on the eastern, as on the western side of the ranges.

I had completely ascertained that Flinders range had terminated to the eastward, the north-east, and the north; that there were no hills or elevations connected with it beyond, in any of these directions, and that the horizon every where was one low uninterrupted level.
With such data, and under such circumstances, what other opinion could I possibly arrive at, than that the bed of Lake Torrens was nearly similar in its character, and equally impracticable in its eastern, as its western arm; and that, considering the difficulties I had encountered, and the hazards I had subjected myself to, in ascertaining these points so minutely on the western side, I could not be justified in renewing those risks to the eastward, where the nature and extent of the impediments were so self-evidently the same, and where there was not the slightest hope of any useful result being attained by it.
I was now more than a hundred miles away from my party; and having sent them orders to move back towards Mount Arden, I had no time to lose in following them.