1ST MAY.--On leaving the lagoon, passing between its head and the river, we were soon enveloped in a thick scrub of Casuarinae, on ground broken into gullies falling to the river. I tried to pass by the lower margin of this, but gullies in the way obliged me to ascend and seek a passage elsewhere. Forcing our way, therefore, through the scrub and out of it, we found outside of it, in an open forest, the box and Angophora, and could go forward without impediment, first to the N. W., afterwards northward, and N. E. At length the woods opened into fine grassy plains, bounded on the east by trees belonging to the river berg. There I saw still the trees we had so gladly got away from, the Casuarina; also the cheering white arms of the Yarra, or blue gum. The prospect before us improved greatly; fine plains presented a clear way to the northward, with the river apparently coming thence, and even round from the N. W. From a tree, Yuranigh descried hills in the N. E. and the plains extending before us. I also perceived, from the wide plain, a distant low rise to the N. W. We crossed two hollows on these grassy plains, each containing deep ponds, and descended towards what seemed a branch of the river; we encamped near it, in latitude 27 deg. 15' 4" S. As we approached this spot, natives were seen first looking at us, and then running off-- Yuranigh said he recognized one of them as a countryman of his own. I endeavoured to make him cooey to them, or call them, but they made off, setting fire to the grass. Any information from natives of these parts might have been very useful to us then, and I hoped they would at length come to us. Thermometer, at sunrise, 26 deg.; at 4 P. M., 67 deg.; at 9, P. M., 48 deg.;--with wet bulb, 46 deg..