Xyris, Philydrum, a species of Xerotes, and an aromatic spreading herb, grew in great abundance round the water. I found a great quantity of the latter in the stomach of the emu. A species of Crotolaria, two or three feet high, with simple woolly oblong or oblongo-lanceolate leaves, and with a beautiful green blossom of the form and size of that of Kennedya rubicunda, grew in the bed of the river. Great numbers of large bright yellow hornets, with some black marks across the abdomen, visited the water. Flies were exceedingly troublesome: but the mosquitoes annoyed us very rarely, and only where water was very abundant. The nights have been very dewy, but not cold. The wind in the morning from the south-east, veering round to the northward during the day. Sept. 9.--We travelled north-west by north, and for several miles, through a scrubby stringy-bark forest, when we came to steep sandstone ridges, composed of a hard flaggy horizontally stratified rock. Higher ranges were seen to the W.N.W. and west; and I found myself fairly caught between rocky hills when I least expected them, but hoped to enter upon a country corresponding in its character with the low coast marked down in the map, in this latitude. I turned to the northward, and found a practicable path between the hills, and came, after crossing a small sandy creek to a fine salt-water river, as broad as any we had seen. High hills were at its left bank; and, as we followed it up in a direction S. 60 degrees W., the right became more broken, and the vegetation richer. A very conspicuous foot-path led us through heaps of cockle shells to a fishing station of the natives, where they seemed to have a permanent camp; the huts being erected in a substantial manner with poles, and thatched with grass and the leaves of Pandanus; there were extensive fire places containing heaps of pebbles; and an abundance of fish bones. The weir was, as usual, formed with dry sticks, across a shallow part of the river. A spring of fresh water was below the camp at the edge of high water. As the tide was high, and an abundant supply of fresh water was found in a creek which joined the river a few hundred yards from the fishery, we encamped on the creek, in lat. 16 degrees 28 minutes 57 seconds, lon. 137 degrees 23 minutes. I consider this river to be the "Abel Tasman" of the Dutch navigators: and that it is probably joined by the Calvert. Its flats were well-grassed, and very openly timbered with bloodwood, stringy-bark, leguminous Ironbark, then in blossom, and a large tree with white smooth bark, spreading branches, and pinnate leaves. The salt water Hibiscus (Paritium) and Acacia (Inga moniliformis), were also in blossom. Charley, Brown, and John, went to spear some fish, but the tide was out, the water shallow, and the fish were gone. Charley saw here, for the first time, the Torres Straits pigeon (Carpophaga luctuosa, GOULD.)