Our horses literally sank up to their knees on parts of the great plain over which we had in the first instance to pass, and we rode from three to four miles before we caught sight of a distant wood at its northern extremity; the view from the river having been for the last two or three days, as boundless as the ocean. As we approached the wood, two columns of smoke rose from it, considerably apart, evidently the fires of natives near water. We made for the central space between them, having a dead acacia scrub upon our right. On entering the wood, we found that it contained for the most part, flooded-gum, under which bulrushes and reeds were mixed together. The whole space seemed liable to overflow, and we crossed numerous little drains, that intersected each other in every direction. From the resemblance of the ground to that at the bottom of the marshes of the Macquarie, I prognosticated to my companion that we should shortly come upon a creek, and we had not ridden a quarter of a mile further, when we found ourselves on the banks of one of considerable size. Crossing it, we proceeded northerly, until we got on the outskirts of a plain of red sandy soil, covered with rhagodia alone, and without a tree upon the visible horizon. The country appeared to be rising before us, but was extremely depressed to the eastward. After continuing along this plain for some time, I became convinced from appearances, that we were receding from water, and that the fires of the natives, which were no longer visible, must have been on the creek we had crossed, that I judged to be leading W.S.W. from the opposite quarter. We had undoubtedly struck below to the westward of the Colare or Lachlan, and the creek was the channel of communication between it and the Morumbidgee, at least such was the natural conclusion at which I arrived. Having no further object in continuing a northerly course, we turned to the S.E., and, after again passing the creek, struck away for the camp on a S. by W. course, and passed through a dense brush of cypress and casuarina in our way to it. CONNECTION OF LACHLAN WITH MORUMBIDGEE. Considering our situation as connected with the marshes of the Lachlan, I cannot but infer that the creek we struck upon during this excursion serves as a drain to the latter, to conduct its superfluous waters into the Morumbidgee in times of flood, as those of the Macquarie are conducted by the creek at the termination of its marshes into Morrisset's Chain of Ponds. It will be understood that I only surmise this. I argue from analogy, not from proof. Whether I am correct or not, my knowledge of the facts I have stated, tended very much to satisfy my mind as to the LAY of the interior; and to revive my hopes that the Morumbidgee would not fail us, although there was no appearance of the country improving. COUNTRY COVERED WITH REEDS.