Hills were occasionally seen back from it, chiefly covered with scrub, but some were grassy and seemed fit for sheep. Others were clothed with callitris, and there the woods were open enough to be travelled through. I rode to the summit of one and recognized two of the points seen from Mount First Sight. At one sharp turn of the river rugged rocks had to be removed to make a way for the carts, but this was soon done. Beyond, there was a noble reach of water in a rocky bed, traversed by a dyke of felspathic rock, which exhibited a tendency to break into irregular polygons, some of the faces of which were curved; its strike was E. and W. We encamped on open forest land in lat. 26 deg. 54' 16" S. It was only during the last two days that I could perceive in the barometer, any indication that we were rising to any higher level above the sea than that of the great basin, in which we had journeyed so long, and the difference was still but trifling, as indicated by not more than six or seven millimetres of the Syphon barometer; our actual height above the sea being 737 feet. Thermometer, at sunrise, 19 deg.; at 4 P. M., 67 deg.. 6TH MAY.--The banks of the Cogoon became more open, and the slopes less abrupt as we advanced. They frequently consisted of a mixture of sand, at a height of twenty feet above its bed; where it occupied a section of considerable width, as much, perhaps, as 100 yards between bank and bank. On these rounded off banks or bergs of forest land, Youranigh drew my attention to large, old, waterworn, trunks of trees, which he showed me had been deposited there by floods. As they were of a growth and size quite disproportioned to other trees there, I was convinced that they were the debris of floods; and, consequently, that a vast body of water sometimes came down this channel. This native was taciturn and observant of such natural circumstances, to a degree that made his opinion of value in doubtful cases. Such, for instance, as which of two channels, that might come both in our way, might be the main one; thus my last resource, when almost "in a fix," was to "tomar el parecer," as they say in Spain, of this aboriginal, and he was seldom wrong. At length, the cheering expanse of an open country appeared before us, and a finely shaped hill, half-covered only, with bushes. On reaching an elevated clear part, I saw extensive downs before me. The river turned amongst woods to the eastward, and I continued on our route to the north, sure of meeting with it again, as some fine forest ridges hemmed in the valley to the eastward. Besides the hill already mentioned (which I named Mount Inviting), there was a curious red cone some miles to the westward, crowned with a bit of rock, on which I longed to plant my theodolite. After crossing the plain, we entered an open scrub of Acacia pendula which gradually changed to an open forest, within which I met with a chain of ponds, and encamped in lat. 26 deg. 46' S. I immediately set out,