22D MAY.--This morning, the thermometer in my tent stood at 20 deg.; and in the open air, at 12 deg.. The river was frozen, and the grass was white with hoar-frost. The soil appearing so sandy in the country before us, I resolved to form a depot with our drays and heavy equipment here, and to await their arrival before I proceeded further with the carts. The spot was eligible in every respect; and in awaiting the arrival of Mr. Kennedy with the drays, I could have time to investigate more extensively the character of the surrounding country. I was, indeed, rather apprehensive that the drays could not reach without difficulty even this point; and I was resolved, on their arrival, to make some arrangement for continuing the journey, without dragging them any further through the heavy sand. It was most irksome, during the finest of weather, thus to be obliged to remain comparatively inactive, in the middle of such a journey, when horses and light carts might have enabled me to have pursued it to a conclusion, without such delays. Thermometer, at noon, 54 deg.; at 4 P. M., 55 deg.; at 9, 27 deg.. 23D MAY.--The river seemed to cut its way through rocky ranges, and to receive many tributaries; had, in some places, bergs, and margins of ancient gravel and sedimentary strata; in others, rocky escarps of great height, presented sections of rocks through which it passed. Its further course downwards, seemed accessible for some way from this camp; and, in awaiting the arrival of the drays, I resolved to explore it. With this view, I this day proceeded westward to head the gullies falling to it from the other bank, from the sandstone country already mentioned. I ascended by an extremity of the hill, to the rocky crest without difficulty, or much deviation from my intended course. On reaching the western side of the rough scrubby table of the range, I found the descent gradual, through an open forest: traversed two flats, having in them the Yarra gums, but no water-course, the surface very sandy. Here grew the ACACIA CONFERTA, a small shrub just coming into flower; the XANTHORRHOEA MIMOSA (with rough bark), yellow gum, black-butted gum, iron-bark, and stringy bark. The woods astonished my native companion Yuranigh; who remarked that they were trees belonging to the sea coast at Sydney. But deep rocky ravines prevented me from exploring the country, in the direction in which I should have expected to find the river. At length, we approached a valley, in which was a deep channel with rocky banks; but quite dry, and very sandy. It ran to the southward; in which direction I turned with it, to follow it to its junction with the main river; but it pursued a very tortuous course, and our time did not admit of my going far enough that day, and I returned to the camp, resolved to extend this interesting search on a greater scale subsequently. I had seen, from the furthest point I reached, that the same table land to the southward,