August 11.--Along the banks of these ponds, several transitory encampments of the natives were found, but none that had been inhabited within these four or six months; by all of them were found abundance of the pearl muscle-shell so common on the Lachlan. The soil, as far as we examined round our tents, east of the ponds, was a good sandy loam. The timber very open, and if the country had been divested of the numerous acacia bushes with which the face of it was covered, it would be impossible to wish for land more lightly timbered: the grass anthistiria was very luxuriant. The ponds appear to have not been flooded for a very considerable time, the water in many being of a milky whiteness, and the dry channels are overrun with reeds and grass. These ponds were called Coysgaine's Ponds, and by our observations the tent was in lat. 32. 44. 29. S., long. 147. 46. 30. E., mean variation 7. 18. E. August 12.--Proceeded on our course, which, as I hoped and expected we were not far from the Macquarie River, was altered to north-east, for the purpose of joining it lower down than our former course would have done; being anxious to know as much of the country in the vicinity of the river as our time and circumstances would permit. An open forest country with tolerably good soil continued for nearly five miles, when we suddenly came upon a large swampy plain surrounded by the acacia pendula. Water was still remaining on several parts of it, and we had no doubt from its whole appearance that it would lead immediately to the river; from the south-west edge of this plain (which was six or seven miles round), we had a distant prospect of a very lofty mountainous range to the eastward, named Harvey's Range; the north extreme of which bore north, and the highest part N. 94. This range was by far the highest we had seen westward of the Blue Mountains. and its elevation could be very little if at all inferior. Crossing this plain and pursuing our north-easterly course, we entered a poor barren country covered with box trees, and low acacia shrubs; our hope of meeting the river was however disappointed. We travelled upwards of six miles through this box scrub, when coming to two or three holes of good water I thought it advisable to halt, rather than proceed a mile or two farther, which was the utmost we could have done; and then in all probability, be obliged to halt at a spot that would not afford us that necessary article.