August 8.—The horses having rambled a little this morning it was rather late before we got away, I had, however, made up my mind to advance at all risks, and we accordingly travelled sixteen miles to the N. W.; halting without any water upon the large watercourse emanating from Mount Deception; there was no grass either, and we were consequently obliged to tie up our horses for the night.
August 9.—The sheep had broken out of their yard, and could not be found this morning; so sending the party on with the native boy as a guide, I remained behind myself with the overseer, to search for them; they were soon found, and we moved on after the drays. In going up the watercourse I again found a native fire, where natives had been encamped within a mile of us during the night, without our being aware of it; so difficult is it always to know the proximity of these children of the wilds.
Having overtaken the party, I conducted them to The Scott, at which we arrived early in the day, though the distance could not be less than 20 miles. At night a party of natives were seen near, but did not come up to us.
August 10.—To day I prepared for another exploration to the N. W. and had all our casks and kegs new coopered and filled with water, to make them water tight. I found it necessary also to have our horses new shod, which was the third set of shoes they had required in less than two months, in consequence of the hard and stony roads over which we had travelled. The natives were again encamped near us at night, but did not come up.
August 11.—Leaving directions for the overseer to dig for water during my absence, I took a native boy and one man driving a cart loaded with water; we had mustered all the casks and kegs in the party, holding altogether 65 gallons, and to draw this I had our three best draught horses yoked to the light cart, being determined to push as far as possible to the N. W. before I returned. At first we passed over a good road but stony, then over heavy red sand ridges, and at night encamped in a gorge coming from Termination Hill, where we had excellent feed for the horses, but no water. The traces of natives were numerous and recent, and I imagine they must obtain their supply of water at puddles in the plains, but we could find none at present. The weather was very hot and the flies excessively annoying, even at this early period of the year. We gave each of the horses three gallons of water out of the kegs, after which they fed well; the hills, as we advanced were getting lower, and the sandy ridges now wound close under them, and in some instances even among them; still there were many birds around us, amongst which cockatoo parrots were very numerous. Our stage was about 23 miles.
August 12.—Steering to the N. W. to a low range (the highest summit of which I named Mount North-west,) we just kept far enough in the plains to intercept the watercourses from the hills where they spread into the level country, and by this means we got excellent feed for our horses; generally the same rich succulent herbage I have mentioned before, occasionally mixed with wild oats. It was only in places of this description that we could expect to find anything for our horses. In the plains or on the hills there was not a blade of of anything green; at night we encamped upon a small dry channel with tolerable feed, but no water, and we again gave each horse three gallons from our kegs.
The country we were traversing as yet under-went no alteration, the only difference being, that the hills were getting lower and the watercourses less numerous, and both apparently without water; the sand ridges came more in among the hills, and the dry beds of small salt lakes were often met with; the salsolae were more abundant, but the traces of natives were now less frequent; whilst those we fell in with seemed for the most part to have been left during the wet season. The rock formation still continued the same, quartz, ironstone, slate, and grey limestone, with saline crusts peeping above the ground in many places in the lower levels; the sky was cloudy and threatened rain, but none fell: our stage was 18 miles.
August 13.—Continuing our course to the N. W. I took on the cart for 13 miles to a large dry channel, coming from the hills, upon which we halted for an hour or two to rest and feed the horses, as there were some sprinklings of grass around. We had now a change in the appearance of the country; the ironstone ranges seemed to decrease rapidly in elevation to the north, and the region around appeared more level, with many very singular looking table-topped elevations from 50 to 300 feet in height and with steep precipitous sides which were red, with the ironstone above, and white, with a substance like chalk, below. The country was covered with salsolae, and we passed the beds of many dried up salt lakes. Ascending the highest ridge near us, I found Lake Torrens was no longer visible, being shut out by the sandy ridges to the westward, whilst the low ironstone hills impeded our view to the north, and to the east. Having given our horses water, we buried twelve gallons against our return, and sending back the man with the cart, and extra horses, the native boy and I still pushed on to the N. W., taking a pack-horse to carry our provisions and a few quarts of water for ourselves.
As we proceeded, the country changed to extensive plains and undulations of stones and gravel, washed perfectly level by water, and with the stones as even in size and as regularly laid as if they had been picked out and laid by a paviour. At intervals were interspersed many of the fragments of table land I have alluded to before, only perhaps a little less elevated than they had previously been; we passed also the beds of several small dry watercourses, and encamped upon one of the largest, long after dark, having travelled twenty-five miles since we left the cart, and having made in the whole a day's journey of thirty-seven miles. There was tolerable food in the bed of the watercourse, but the horses were thirsty and eat but little. Unfortunately, in crossing the stony ground, one of them cast a shoe, and began to go a little lame.
August 14.—Moving away very early we travelled sixteen miles due north, through a very similar country, only that the stones and gravel in the plains had become much finer and a good deal mixed with sand; the fragments of table land still continued in every direction at intervals, and their elevations still varied from 50 to 300 feet. In the upper part these elevations appeared red from the red sandy soil, gravel, or iron-stone grit which were generally found upon their summits. They had all steep precipitous sides, which looked very white in the distance, and were composed of a chalky substance, traversed by veins of very beautiful gypsum. There were neither trees nor shrubs, nor grass, nor vegetation of any kind except salsolaceous plants, and these every where abounded.