country beyond. The XEROTES LEUCOCEPHALA was just coming into flower, and the country seemed to contain much good grass. Thermometer, at sunrise, 38 deg.; at noon, 82 deg.; at 4 P. M., 82 deg.; at 9, 43 deg.. [* This gentleman was killed by natives when obeying the calls of nature behind a tree.] 16TH MAY.--We pursued a tolerably straight and level route with the carts, from the camp to the Pass. The trap hills appearing successively on the right hand, rendered the scenery more than ordinarily picturesque, while the probable future utility of this pass, gave them still more importance in my estimation. We found a more direct route than along the creek, to my pond of yesterday, where we encamped, thankful to find water at such a convenient distance, during such a dry season. Lat. 26 deg. 15' 24" S. Thermometer, at sunrise, 27 deg.; at 4 P. M., 83 deg.; at 9, 49 deg.. Height above the sea, of the Pass, 1458 feet;--of this camp, 1256 feet. 17TH MAY.--Another reconnoissance seemed indispensable, before I could move the carts. Taking the direction of an opening in the sandstone ranges before us, I found that our little creek turned (as I hoped it would), to the W. and N. W., having on all sides broken ranges enveloping valleys of good open forest land. Some of the tops of these ranges were clear of timber, and bore a heavy crop of grass. I ascended one, and found it was capped with trap rock in amygdaloidal nodules. This height afforded me an extensive view northward, where the country appeared to be chiefly flat and thinly wooded. A low range of hills broke the horizon, and presented some favourable points, and I thought I could trace the course of our little river, through an extensive intervening woody flat. I descended from the hill, and followed the little river down, but could find no more water in its ponds. There were the Yarra trees, and fine grassy flats on its banks; and I came to a fine looking piece of rising ground, on the right bank, where the grass was on fire. We sought the inhabitants of the woods, but could discover none. I now found our creek turning towards the south, and that its channel disappeared in a spacious open flat. While thus perplexed, and under an apprehension that our further progress northward in such a season would be found impossible, I perceived a dense line of trees, skirting a grassy flat, and rode towards it, observing, that any where else I should have said we were approaching a large river. I next perceived steep sloping earthy banks; then, below these, a deep section of rock, and at length, dark green reeds, and the blue surface of extensive reaches of water. I had left my party at a pond that could not have lasted long,--here I saw at once secure, a firm footing thus far into the interior. Whence the river came, or whither it went, was of less importance; thus far we had water. The river was fully as large as the Darling, and I very soon saw that its course was from N.