The forest on the right side of the river was tolerably open, though patches of Myal scrub several times exposed us to great inconvenience; the left bank of the Condamine, as much as we could see of it, was a fine well grassed open forest. Conglomerate and sandstone cropped out in several sections. Mosquitoes and sandflies were very trouble-some. I found a species of snail nearly resembling Succinea, in the fissures of the bark of the Myal, on the Box, and in the moist grass. The muscle-shells are of immense size. The well-known tracks of Blackfellows are everywhere visible; such as trees recently stripped of their bark, the swellings of the apple-tree cut off to make vessels for carrying water, honey cut out, and fresh steps cut in the trees to climb for opossums. Our latitude was 26 degrees 49 minutes. The thermometer was 41 1/2 at sunrise; but in the shade, between 12 and 2 o'clock, it stood at 80 degrees, and the heat was very great, though a gentle breeze and passing clouds mitigated the power of the scorching sun.
Oct. 8.--During the night, we had a tremendous thunder-storm, with much thunder and lightning from the west. The river was very winding, so that we did not advance more than 7 or 8 miles W.N.W.; the Bricklow scrub compelled us frequently to travel upon the flood-bed of the river. Fine grassy forest-land intervened between the Bricklow and Myal scrubs; the latter is always more open than the former, and the soil is of a rich black concretionary character. The soil of the Bricklow scrub is a stiff clay, washed out by the rains into shallow holes, well known by the squatters under the name of melon-holes; the composing rock of the low ridges was a clayey sandstone (Psammite). Sky cloudy; wind north-east; thermometer 80 degrees at 2 o'clock; the sunshine plant (Mimosa terminalis) was frequent on the black soil; a Swainsonia; an Anthericum, with allium leaf and fine large yellow blossoms; and another species with small blossoms, (Stypandra).
Oct. 9.--Commenced with cloudy weather, threatening rain. It cleared up, however, about 10 o'clock, and we had a very warm day. We followed the course of the river for some time, which is fringed with Myal scrubs, separated by hills with fine open forest. Finding that the river trended so considerably to the northward [It seems that NORTHWARD here is merely miswritten for WESTWARD.--(ED.)], we left it at a westerly bend, hoping to make it again in a north-west direction. Thus, we continued travelling through a beautiful undulating country, until arrested by a Bricklow scrub, which turned us to the south-west; after having skirted it, we were enabled to resume our course to W.N.W., until the decline of day made me look for water to the south-west. The scrubs were awful, and threatened to surround us; but we succeeded in finding a fine large lagoon, probably filled by the drainage of the almost level country to the north-east. No water-course, not the slightest channel produced by heavy rains, was visible to indicate the flow of waters. Occasionally we met with swampy ground, covered with reeds, and with some standing water of the last rains; the ground was so rotten, that the horses and bullocks sunk into it over the fetlocks. The principal timber trees here, are the bastard box, the flooded-gum, and the Moreton Bay ash; in the Myal scrub, Coxen's Acacia attains a very considerable size; we saw also some Ironbark trees.
The tracks and dung of cattle were observed; and this was the farthest point to the westward where we met with them. Kangaroos seemed to be very rare; but kangaroo rats were numerous. Black-fellows were very near to us last night; they very probably withdrew upon seeing us make our appearance.
Oct. 10.--Cloudy; wind northerly; thermometer at 2h. 30m. P. M. 88 degrees. At about 1 1/2 or 2 miles distance, in a north-west direction from our last camp, we came to a fine running creek from the north-east, which we easily crossed; and, at about one mile farther, reached a creek--which, at this time of the year, is a chain of lagoons--lined on both sides by Bricklow scrub, which occupied a portion of its limited flats in little points and detached groves. This vale was one of the most picturesque spots we had yet seen. An Ironbark tree, with greyish fissured bark and pale-green foliage, grows here, and Sterculia heterophylla is pretty frequent amongst the box and flooded-gum, on the rising ground between the two creeks. Farther on, the country opened, the scrub receded; Ironbark ridges here and there, with spotted gum, with dog-wood (Jacksonia) on a sandy soil, covered with flint pebbles, diversified the sameness. The grass was beautiful, but the tufts distant; the Ironbark forest was sometimes interspersed with clusters of Acacias; sometimes the Ironbark trees were small and formed thickets. Towards the end of the stage, the country became again entirely flat, without any indication of drainage, and we were in manifest danger of being without water. At last, a solitary lagoon was discovered, about 30 yards in diameter, of little depth, but with one large flooded gum-tree, marked, by a piece of bark stripped off, as the former resting-place of a native; the forest oak is abundant. Here I first met with Hakea lorea, R. Br., with long terete drooping leaves, every leaf one and a-half to two feet long--a small tree 18--24 minutes high--and with Grevillea mimosoides, R. Br., also a small tree, with very long riband-like leaves of a silvery grey. We did not see any kangaroos, but got a kangaroo rat and a bandicoot.
Oct. 11.--Travelling north-west we came to a Cypress-pine thicket, which formed the outside of a Bricklow scrub. This scrub was, at first, unusually open, and I thought that it would be of little extent; I was, however, very much mistaken: the Bricklow Acacia, Casuarinas and a stunted tea-tree, formed so impervious a thicket, that the bullocks, in forcing their way through it, tore the flour-bags, upset their loads, broke their straps, and severely tried the patience of my companions, who were almost continually occupied with reloading one or other of the restless brutes. Having travelled five miles into it, and finding no prospect of its termination, I resolved upon returning to our last camp, which, however, I was not enabled to effect, without experiencing great difficulty, delay, and loss; and it was not until the expiration of two days, that we retraced our steps, and reached the lagoon which we had left on the 11th. We had lost about 143 pounds of flour; Mr. Gilbert lost his tent, and injured the stock of his gun. The same night, rain set in, which lasted the whole of the next day: it came in heavy showers, with thunder-storms, from the north and north-west, and rendered the ground extremely boggy, and made us apprehensive of being inundated, for the lagoon was rapidly rising: our tent was a perfect puddle, and the horses and cattle were scarcely able to walk.
Within the scrub there was a slight elevation, in which sandstone cropped out: it was covered with cypress-pine, and an Acacia, different from the Bricklow. The Bottle-tree (Sterculia, remarkable for an enlargement of the stem, about three feet above the ground,) was observed within the scrub: the white Vitex (?) and Geigera, SCHOTT., a small tree, with aromatic linear-lanceolate leaves, grew at its outside, and in small groves scattered through the open forest. Fusanus, a small tree with pinnate leaves, and Buttneria, a small shrub, were also found in these groves.
Many pigeons were seen; the black cockatoo of Leach (Calyptorhynchus Leachii) was shot; we passed several nests of the brush-turkey (Talegalla Lathami, GOULD). Charley got a probably new species of bandicoot, with longer ears than the common one, and with white paws. We distinguished, during the rain, three different frogs, which made a very inharmonious concert. The succinea-like shells were very abundant in the moist grass; and a limnaea in the lagoon seemed to me to be a species different from those I had observed in the Moreton Bay district, The thermometer at sunset 62 degrees (in the water 68 degrees); at sunrise 52 degrees (in the water 62 degrees).
On the 15th October, the wind changed during the afternoon to the westward, and cleared the sky, and dried the ground very rapidly.