The reader will have inferred, from what I have said on the subject, that my object at this particular time was to attain the meridian of Mount Arden, as soon as circumstances should enable me.  Had not this intention influenced me, on my recent journey, I should have kept nearer to the ranges; but I hoped, by taking a westerly course, that I should strike the N.E. angle of Lake Torrens, or find that I had altogether cleared it; added to this Mr. Eyre had informed me that he could not see the northern shore of that lake; I therefore thought that it might be connected with some more central body of water, the early discovery of which, in my progress to the N.W., would facilitate my future operations.  This was a point whereon I was most anxious to obtain information; but, as my horses were knocked up, it appeared to me, that Mr. Poole, with fresh horses, would find no difficulty in gaining a distance sufficiently great to enable me to act on the knowledge he might acquire of the distant interior.

In my instructions to that officer therefore, I directed him to pursue a general N.W. course, as the one most likely to determine the questions on the several points to which I called his attention.  “Should you,” I said, “reach the shores of Lake Torrens, or any body of water of unknown extent, you will endeavour to gain every information on that head; but if you should not strike any basin of either description, you will do your uttermost to ascertain if a westerly course is open to us, after you shall have reached lat. 30 degrees to enable me to gain the 138 degrees meridian, as soon as circumstances will permit.  Should the supply of water which the recent rains will ensure for a time, be likely to fail, or if the rains should not have extended so far as you would desire to go, and your advance be thus rendered hazardous, it will be discretionary with you to return direct to the camp, or turn to the eastward, and proceed along the western flanks of the ranges, but you are on no account to endanger either yourself or party by an attempt to push into the interior, to a distance beyond that which prudence might reasonably justify.  Should you return along the ranges you will examine any creek or water-course you may intersect, and bring me the fullest information as to the supply of water and feed.  Should you, on the other hand, discover any very extensive sheet of water, you will, after ascertaining its extent and direction, as far as your means will allow, return immediately to the camp; as, in the event of our requiring the boat, many necessary preparations will have to be made, that will take a considerable length of time to complete, during which the examination of the country to the north can be carried on with advantage.

“You will select the men you would wish to accompany you, and will provide as well for your comfort as safety; for although these regions do not seem to be inhabited at the present moment, at least in that part from whence I have just returned, it will be necessary for you to be always on your guard, even although no apparent danger may be near.”