Mount Foster, somewhat higher than Mount Harris, on the opposite side of the river, alone broke the line of the horizon to the North N.W. at a distance of five miles. From that point all round the compass, the low lands spread, like a dark sea, before me; except where a large plain stretching from E. to W., and lying to the S.E. broke their monotony; and if there was nothing discouraging, there certainly was nothing cheering, in the prospect. ILLNESS OF TWO OF THE MEN. On our return to the camp, I was vexed to find two of the men, Henwood and Williams, with increased inflammation of the eyes, of which they had previously been complaining, and I thought it advisable to bleed the latter. In consequence of the indisposition of these men, we remained stationary on the 21st, which enabled me to pay a second visit to Mount Harris. On ascending the smaller hill, I was surprised to find similar vestiges on its summit to those I had noticed on the larger one; in addition to which, the rollers still continued on the side of the hill, which had been used to get the boat up it. [Mr. Oxley had two boats; one of which he dragged to the top of each of these hills, and left them turned bottom upwards, buryinq a bottle under the head of the larger boat, which was conveyed to the more distant hill.] Mount Harris is of basaltic formation, but I could not observe any columnar regularity in it, although large blocks are exposed above the ground. The rock is extremely hard and sonorous. MOUNT FOSTER AND ITS NEIGHBOURHOOD. We moved leisurely towards Mount Foster, on the 22nd, and arrived opposite to it a little before sunset. The country between the two is mostly open, or covered only with the acacia pendula and dwarf-box. The soil, although an alluvial deposit, is not of the best; nor was vegetation either fresh or close upon it. As soon as the party stopped, I crossed the river, and lost no time in ascending the hill, being anxious to ascertain if any fresh object was visible from its summit, I thought that from an eminence so much above the level of the surrounding objects, I might obtain a view of the marshes, or of water; but I was wholly disappointed. The view was certainly extensive, but it was otherwise unsatisfactory. Again to the N.W. the lowlands spread in darkness before me; there were some considerable plains beyond the near wood; but the country at the foot of the hill appeared open and promising. Although the river line was lost in the distance, it was as truly pointed out by the fires of the natives, which rose in upright columns into the sky, as if it had been marked by the trees upon its banks. To the eastward, Arbuthnot's range rose high above the line of the horizon, bearing nearly due East, distant seventy miles. The following sketch of its outlines will convey a better idea of its appearance from Mount Foster than any written description. [small sketch here--not shown in etext]