May 21.--The water was so extremely bad that, pressed as we were by thirst, we could scarcely even by twice boiling it render it drinkable. After travelling ten or eleven miles through a country equally barren and destitute with that of yesterday, without meeting with the least appearance of water, and the horses being completely worn out, I determined to halt on a small patch of burnt grass; two of the horses had fallen several times under their loads, and nothing but the evenness of the road enabled us to reach thus far. The same level plain extended on all sides, and our view was confined to the scrubby brush around us. A small hollow lying across our track, I sent a man on horseback to trace it, in hopes it might lead to water: he returned about four o'clock with the joyful news that he had found water in a large swamp about five miles to the north-west: he also saw a native, who however ran too swiftly to allow him to come up with him. This was the first living creature of any kind we had seen since we quitted the river. Both the kangaroo and emu seem to have deserted these plains for other parts of the country better watered, and affording them more food. The horses being utterly unable to proceed without rest, I determined to remain here to-morrow to refresh them. May 22.--The nights cold and frosty, the days warm and clear: I think it is very evident that the altitude of the country declines in a remarkable manner to the north-west; from the south-east to the south-west it appears nearly of the same elevation; and in travelling we appear to be going along an inclined plane, the lowest edges being from west to north. I went about five miles to the north-west to the place whence the water was procured; the country poor, and as barren as can well be imagined; the soil a light red sand, acacia scrubs, small box-trees, and a few miserable cypresses. May 23.--Our route lay through a country equally bad, if not worse, than any which we had passed the preceding days: in some places it was difficult for the horses to force a passage through the brush; occasionally low stony ridges intervened, which, when viewed from higher eminences, were not to be detected from the plain out of which they rose. The soil was alternately a sterile sand and a hardened clay, without grass of any description: the country appeared to form the bottom of a dry morass, and I am convinced if the weather had not been dry for a considerable time, travelling would have been impossible. After proceeding ten miles we were obliged to stop, the horses being unable to go further. We had seen no signs of water during our route, but stopping at a stony water-course we were in hopes of finding a sufficiency to supply our wants, and on a hill at the end of it, about a quarter of a mile to the westward, water was found.