One locality was particularly striking: a great number of rocky basins within the basalt, and surrounded by its black blocks, formed evidently so many lagoons during the wet season, as sedges and Polygonums--always inhabitants of constantly moist places--grew abundantly in most of them. These basins were situated between low basaltic rises, along which narrow flats frequently extended. The flooded gum-trees were fine and numerous, and made me frequently believe that I was approaching a creek. I rode, however, over eighteen miles of country to the westward without observing the slightest watercourse. Long flats bounded by slight undulations extended some to the northward, and others to the westward; but their inclination was imperceptible. I passed some hills and plains; and ascending one of the hills, I obtained a fine view. To the west by south I saw other isolated mountains: the country to the westward was not broken by any elevation; a fine long range was visible to the north-west. It was now 3 o'clock P.M., and my Blackfellows had left me, as usual; my horse was foot-sore, and neither the poor animal nor myself had tasted water for the last thirty-six hours. Under these circumstances, though I ardently desired to push on to the north-west ranges, I thought it prudent to return; and after a short rest to my horse, during which I chewed some dry pieces of beef, I rode on my way back until 9 o'clock, and then encamped. The coldness of the night reminded me too strongly of the pleasures of the fire and the heavy dew which had fallen, though a comfort to my horse, rendered it difficult to light one; by dint of patience, however, I succeeded, and then stretched myself, hungry and thirsty as I was, by the side of a large Ironbark log; whilst my horse, which I had hobbled and tethered, drooped his head over me, little inclined either to feed or move. I started early in the morning of the 14th, and passed between Mount Lang and Razorback Hill. At the foot of the latter I met a small creek, which I followed through a long series of plains until I came on my old track, not very far from Big Ant-hill Creek. At the sight of water, which we had been without full fifty hours, my horse and I rushed simultaneously into it, and we drank, and drank, and drank again, before I could induce myself to light a fire and make some tea, which was always found to be much more wholesome, and to allay thirst sooner than the water alone. Near the large water-hole at which I halted, was an old camping place of the natives, and the remnants of many a hut lay scattered round two large flooded gum trees. The smoke of the natives fires was seen in every direction. This part of the country is doubtless well supplied with water-holes: but as they are unconnected with a watercourse, the traveller, unless by accident, has little chance of finding them.