of any ordinary difficulty would not have influenced me to reject the line pointed out, but I felt satisfied that if Lord Stanley and Sir John Barrow could be made aware of the nature of the country to the north of Mount Arden, and the reasons why I considered it would be more advantageous to take the line of the Darling, they would have concurred in opinion with me.  I would myself much rather have taken the line by Mount Arden, since it would have been a greater novelty, and I would have precluded the chance of any collision with the natives of the Darling, more especially at that point to which I proposed to go, and at which Sir Thomas Mitchell had had a rupture with them in 1836.  The journeys of Mr. Eyre had, however, proved the impracticability of a direct northerly course from Mount Arden.  Such a course would have led me into the horseshoe of Lake Torrens; and although I might have passed to the westward of it, I could hope for no advantage in a country such as that which lies to the north of the Gawler Range.  On the other hand, the Surveyor-General of South Australia had attempted a descent into the interior from the eastward, and had encountered great difficulties from the want of water.  Local inquiry and experience both went to prove the little likelihood of that indispensable element being found to the north of Spencer’s Gulf.  It appeared to me also that Sir John Barrow had mistaken the point on the Darling to which I proposed going.  It was not, as he seems to have conjectured, to any point to which I had previously been, but to an intermediate one.  It is very true that if I had contemplated pushing up the Darling to Fort Bourke, the distance would have been 600 miles, and that, too, in a direction contrary to the one in which I was instructed to proceed; but to Laidley’s Ponds, in lat. 32 degrees 26 minutes 0 seconds S. and long. 142 degrees 30 minutes W., (the point to which I proposed to go) the distance would have been a little more than 300 miles.  It was from this point that Sir Thomas Mitchell retreated after his rupture with the natives in 1836; because, as he himself informs us, he just then ascertained that a small stream joined the Darling from the westward a little below his camp, and he likewise saw hills in the same direction.

In consequence of the inhospitable character of the country to the north, I had turned my attention to the above locality, and had been assured by the natives, both of the Murray and the Darling, that the Williorara (Laidley’s Ponds) was a hill stream, that it came far from the N.W., that it had large fish in it, and that its banks were grassy.  It struck me, therefore, that it would be a much more eligible line for the expedition to run up the Darling to lat. 32 degrees 26 minutes, and then to trace the Williorara upwards into the hills, with the chance of meeting the opposite fall of waters, rather than to entangle myself and waste my first energies amidst scrub and salt lagoons.  As I understood my instructions