I had now an opportunity of observing, in the hills forming a low range on my right, or to the westward, that their stratification dipped toward the east, at an angle of about 25° with the horizon; on which side those slopes did not exceed that angle, whereas on the westward, they presented abrupt, precipitous sides, each terminating in two steep sides, forming an angle at the highest point. We encamped on a fine plain on the east side of that range, but westward of the river (beyond which lay our former route), and we found water in a lagoon a quarter of a mile eastward of our camp; also, in a mountain rivulet two miles south of the camp, coming from near Mount Beaufort, and some, very clear, was found in a rocky gully immediately westward of our camp. Still, the bed of the main channel was dry, and we had been obliged to seek for the water before it was found in these several directions. Thermometer, at sunrise, 41°; at noon, 79; at 4 p.m., 82°; at 9, 48°;—with wet bulb 39°.
28TH AUGUST.—The cattle were well refreshed by the grass on the plain: a fresh growth was now apparent in it. We continued to travel due southward over the plain, and through a brigalow scrub beyond it, until we crossed, for the last time, the little river that had led us so far astray. Just beyond it, we joined our old track, at about five miles short of Camp LIII., to which we proceeded, and where we again encamped, although the pond we formerly found there had dried up. We afterwards found a good supply, at a lagoon about half a mile lower down; from which a little dog of mine (called Procyon), had come out wet, and so made it known to us. Thermometer, at sunrise, 40°; at noon, 81°; at 4 p.m., 76°; at 9, 49°;—with wet bulb, 41°.
29TH AUGUST.—Continuing along the old track, we this day quitted the basin of the Belyando, and ascended those grassy slopes, and that range, which I had formerly taken to be the water-shed of the coast rivers. We thus crossed to the basin of another eastern river, the Nog; and, in quitting that of the Belyando, I have to observe, that like most other Australian rivers, it maintained a peculiar character throughout its course, with great uniformity, even after it received tributaries apparently larger than itself. All these lapsed into the same concatenated line of ponds; at one place, spreading amidst brigalow scrub, at another, forming one well-defined deep channel. For the formation of ponds, and the retention of water, in so dry a climate, we see here something between the ordinary character of rivers, and artificial works which man must construct, when population may spread into these regions. The fallen timber of the brigalow decays very slowly, and is not liable to be burnt, like most other dead wood in open forests, because no grass grows amongst the brigalow, as in open forests. The accumulations of dead logs become clogged with river rack and the deposit of floods; to which floods these heaps present obstructions, forcing the waters into new channels, and, in their progress, scooping out new ponds, and completing the embankment of dead logs; which thus form natural dams and reservoirs to hold, under the shade of the brigalow trees, more water for a longer time than any single river channel could retain, however sluggish its course. Thus it was, that during a season of unusual drought, we had found abundance in this river's course, across nearly 3½ degrees of latitude. The fallen brigalow presents awkward obstructions to wheel carriages; and, as the river spreads into broad plains, and is very favourable to the growth of brigalow, the difficulty of travelling along this river is greatest, where its waters are most scattered. Experience has taught us, in such cases, to endeavour to follow the river channel as closely as possible (the general course being very straight); and thus, open grassy spots and small plains are frequently met with, beyond which nothing could be distinguished, and from which it is safest to go forward in the known general course of the chain of ponds. We again encamped under Mount Mudge, where I perceived that a projecting portion of white rock on the summit, had fallen since I had stood upon it; and that the avalanche of rock had strewed the woody side of the mountain with white fragments down to the very base. In the sheltered ravine below, a curious new CASSIA formed a shrub six feet high.[*] Thermometer, at sunrise, 39°; at noon, 70°; at 4 p.m., 82°; at 9, 56°; —with wet bulb, 50°.
[* C. ZYGOPHYLLA (Benth. MS.) glabra vel pube tenuissimâ subcanescens, foliolis unijugis linearibus planis crassis, glandula inter foliola parva depressa, racemis petiolo brevioribus 2-4-floris.—Near C. NEMOPHILA Cunn.; but there appear never to be more than one pair of leaflets, the plant is smoother, the leaflets longer, and the glands different.]
30TH AUGUST.—The old track guided the party, while I preceded it to sketch one or two landscapes. A fine breeze blew from the northward, and goodly clouds seemed to promise rain. I completed my drawings before the arrival of the carts; and on their coming up I conducted them to a spot where we encamped, on the left bank of the creek, or opposite to camp LI., being resolved to seek a better and more direct way to the plains, than that down the bed of Balmy Creek, which we formerly found so difficult. As soon as I had chosen a spot for the tents, I took a ride, accompanied by Mr. Stephenson and Yuranigh, to explore the ravines eastward of that of Balmy Creek, and which led in a more direct line towards the plains of the Claude. We found the precipices in this direction much lower. After riding a few miles, we could ride up one of the points, and following the ridge we had ascended (which was thickly covered with brigalow), we at length got to an open forest, and once more saw the open plains before us. In returning, I selected, with Yuranigh's able assistance, a smaller valley, by which I hoped to succeed in conducting the carts next day, so as to avoid the ascent of the brigalow range. The barometer at this camp had fallen ten millimetres lower than the point at which the mercury stood formerly at the adjacent camp (marked LI.). By the side of the water-course, we found the ACACIA DORATOXYLON and also the ACACIA CONFERTA. The valley was gay with the ultramarine blue flowers of a new species of HOVEA[*]; and on rich soil we saw also the PODOLEPIS ACUMINATA? D. C. A shrub with long curved leaves and singular zigzag stems, was ascertained to be the ACACIA MACRADENIA, a very striking new species; and on Balmy Creek we found also a new BOSSIOEA, with deep red flowers.[**] Thermometer, at sunrise, 59°; at noon, 83°; at 4 p.m., 81°; at 9, 62°; with wet bulb, 54°.
[* H. LEIOARPA (Benth. MS.) fruticosa, foliis anguste oblongis sublanceolatisve integerrimis subtus reticulatis pubescentibus, venis primariis obliquis, pedicellis in pedunculo brevissimo axillari subgeminis calyce longioribus, calyce adpresse tomentoso, legumine glaberrimo. —Not unlike some forms of H. LANCEOLATA, but readily distinguished, besides the shorter leaves, by the smooth fruit and the veins of the leaves, which diverge from the midrib at a very acute instead of a right angle.]
[** B. CARINALIS (Benth. MS.) ramulis teretibus puberulis foliosis, foliis subsessilibus subcordato-ovatis acutiusculis puberulis, pedicello calyce paullo breviore, corollae alis vexillo longioribus carinâ multo brevioribus.—The same remarkable proportion of the petals may be seen in an unpublished species gathered by Fraser on the Brisbane river.]
31ST AUGUST.—Some heavy showers fell during the night, and in the morning the sky was wholly overcast. We crossed various formidable gullies, and travelled some way down the bed of Balmy Creek, then ascending by the valley through which I yesterday penetrated in my ride, we travelled southward in a tolerably direct line through the valley up to its highest heads, from one of which we contrived to draw up carts and drays along three traverses, formed by nature on the face of a rocky slope. Above this, we found a plateau of flowering shrubs, chiefly new and strange, so that Mr. Stephenson was soon loaded like a market gardener. He had found in the hollow of the little gulley by which we ascended a variety of ACACIA DECORA with leaves shorter that usual; the CASSIA ZYGOPHYLLA, a very curious new species; and the BERTYA OLEOEFOLIA, a shrub three feet high, with green flowers. On the top of the plateau grew a singular dwarf shrub, loaded with yellow flowers, and covered by strong sharp leaves resembling the curved blade of a penknife. It has been ascertained by Mr. Bentham to be an Acacia, referable to his ACACIA TRIPTERA. A little upright bush, with glandular leaves smelling strongly of thyme, proved to be a new PROSTANTHERA.[*] The beautiful ACACIA DECORA appeared as a shrub four feet high; the DODONOEA NOBILIS was just forming its fruit; the DODONOEA VESTITA was also there; the white flowered MYOPORUM CUNNINGHAMI with its viscid branches, formed a bush about four feet high: PITTOSPORUM LANCEOLATUM was a shrub about three feet high, with yellow flowers; and here we met in abundance with the beautiful TECOMA OXLEYI, a kind of Bignonia, loaded with yellowishwhite flowers.
[* P. ODORATISSIMA (Benth. MS.) viscoso-puberula foliis linearibus sublanceolatisve obtusissimis paucidentatis integrisve crassis ad axillas fasciculatis, floribus paucis axillaribus subsessilibus, calycis labiis integris inferiore minore, antherarum calcare longiore loculum superante.—Near P. ASPALATHOIDES: leaves two or three lines long, remarkably thick. Calyx strongly ribbed. The specimens found were past flower, having only a few fragments remaining of the corolla and stamens. The whole plant appears very viscid and retains when dry a very strong smell of thyme.]
There ended all our troubles with the sandstone gullies, for we soon entered open forests, and crossed a grassy valley gently sloping to the eastward, in whose bosom we found a fine deep rocky pond. Beyond that valley we arrived at open downs of the richest soil, and of an extent not to be embraced by the eye at any one point of view. The finest sorts of grass were fast springing up, and curious herbs were beginning to shoot from the rich alluvium in the vallies. We encamped on these downs, about ten miles from our former camp by the Claude, XLIX.