During one of the last stages, we discovered a leguminous tree, with the dark fissured bark of the Ironbark, but with large bipinnate leaves, the leaflets oblong, an inch in length; the pods broad and thin, and two or three inches long: this tree is common all over the northern part of the continent, and was found growing abundantly around Victoria, the principal settlement of Port Essington.
Mr. Roper and Brown, upon an excursion after ducks, which were very numerous on the lagoons, met with Blackfellows, who were willing to accost Brown, but could not bear the sudden sight of a white face. In trying to cross the valley, my course was intercepted every way by deep reedy and sedgy lagoons, which rendered my progress impossible. I saw, however, that this valley was also floored with a sheet of lava hollowed out into numerous deep basins, in which the water collected and formed the lagoons.
May 5.--I went with Charley to reconnoitre the upper part of the reedy brook, with a view to find a passage over the table land to the westward; at the same time I sent Mr. Roper and Brown to trace the river through the lagoons, and to examine whether there was any connection between them. I followed the base of the basaltic table land, along which the brook came down, and, after a two miles' ride on its banks, through oak trees, low fern trees, and several bush trees, found that it came down a valley deeply cut into the table land. The floor of the valley was of basaltic rock, and its steep slopes were covered with boulders of the same formation. The water ran in two distinct beds through the fissures, hollows, and caves of the rock. As our horses could not travel over the sharp edges of the rock without injuring their feet, we ascended the table land, and rode to the northward about four miles, and then came on plains, in which we distinguished a meandering band of green verdure, which proved to be the same brook we had left, or one of its head waters. We followed it through a series of plains, from one of which a blue mountain was visible to the north-west. I called it "Mount Lang," after Dr. Lang, the distinguished historiographer of New South Wales. Smoke was seen to the westward. At the right side of the brook, a stream of lava bounded the plains, and was, as usual, covered with dense scrub. Box, with occasional patches of narrow-leaved tea trees, grew along the plains. The forest was very open, and principally consisted of narrow-leaved Ironbark; the grass in the forest and on the plains, was of the best description. Finer stations for the squatter cannot exist.
May 6.--Following the brook about four miles farther, I came to its source at a gentle slope of basalt. Plains stretched along both sides of its course, and even beyond it. Luxuriant reeds, Plothos, and several deep green trees, crowded round its head. Kangaroos, which abounded particularly along the scrub, had formed numerous paths through the high grass to the water's edge. I now directed my course to the W.N.W., but soon found myself checked by a dyke or wall of basaltic lava, composed of boulders and tabular blocks heaped over each other in wild confusion, and covered by scrub; it stretched from N.W. to S.E. I travelled round its edge to the southward, after having made a vain attempt to cross it. The outlines of the stream ran out in low heads into the flat table land, and there we met occasionally with springs and chains of water-holes which united lower down into a water-course, which, after following alternately the outline of the scrub, and turning into the stream of lava, became lost among its loose rocks. The lava was very cellular; the basalt of the table land solid. The whole appearance of this interesting locality showed that the stream of lava was of much more recent date than the rock of the table land, and that the latter was probably formed under water, whilst the cellular scorified lava was poured out into the open air. The stream of lava enlarged so much, and descended into so broad a valley, that I considered it to be the head of the Burdekin. I walked across it, in order to ascertain the presence of water, but found nothing but deep dry hollows surrounded with drooping tea trees, and the black basaltic rocks covered with wild bottle-tree scrub. It joined the valley of lagoons very much like the valley of the reedy brook, and seemed to unite with the latter, and to expand all over the large basin. Numerous headlands protruded from the table land into the valley of lagoons, between the stream of lava and reedy brook. Many of them were composed of quartzite and pegmatite [Graphic granite, composed of quartz and laminated felspar.--ED.], the detritus of which formed sandy slopes very different from the black and loamy soil of the table land and its plains. Several isolated hills and short ridges rise out of the basaltic floor of the valley of lagoons; they are composed of a different rock; and if it may be allowed me to judge by the colour and by analogy, I should say that they were pegmatite and quartzite. It would, therefore, appear that the valley of lagoons is connected with three streams of lava; one following down the river to the southward, a second coming down the valley of Reedy Brook from W.N.W., and the third coming from the N.W. The course of the Burdekin has no connection with this valley, but runs apparently along its eastern side, and divides the primitive rocks from the streams of lava; for I had not observed any lava on its left bank.
In returning to our camp, we saw a great number of women and children, who ran away upon seeing us, screaming loudly, which attracted some young men to the spot, who were much bolder and approached us. I dismounted and walked up within five yards of them, when I stopped short from a mutual disinclination for too close quarters, as they were armed with spears and waddies. They made signs for me to take off my hat, and to give them something; but, having nothing with me, I made a sign that I would make them a present upon returning to the camp. They appeared to be in no way unfriendly, and directed us how to avoid the water. When I reached the camp, I found that the Blackfellows had been there already, and had been rather urgent to enter it, probably in consequence of the small number of my companions then present, who, however, managed to keep them in good humour by replying to their inquiries respecting our nature and intentions; among which one of the most singular was, whether the bullocks were not our gins. This occurred last night; in the morning they returned again in great numbers, and climbed the trees on the other side of the brook to observe what was doing within the camp. It now became necessary to show them our superiority; which we attempted to do by shooting at a kite, numbers of which were perched on the neighbouring trees; our shots, however, unfortunately missed, and the natives answered the discharge of the gun with a shout of laughter. At this time, however, Mr. Roper, Charley, and myself returned from our excursion, when they became quiet. I threw a tin canister over to them, and they returned me a shower of roasted Nymphaea fruit. It seems that the seed-vessels of Nymphaea and its rhizoma form the principal food of the natives; the seeds contain much starch and oil, and are extremely nourishing. I then gave them some pieces of dried meat, intimating by signs that it must be grilled; soon afterwards they retired. Mr. Roper came in with sad tidings; in riding up the steep bank of the river, his horse, unable to get a footing among the loose rocks, had fallen back and broken its thigh. I immediately resolved upon going to the place where the accident had happened, and proposed to my companions, that we should try to make the best of the meat, as the animal was young and healthy, and the supply would greatly assist in saving our bullocks to the end of our long journey; and they declared themselves willing at all events to give a fair trial to the horse-flesh. Our bullocks were foot-sore and required rest. We, therefore, shot the horse, skinned and quartered it the same night; and ate its liver and kidneys, which were quite as good as those of a bullock.
May 7.--We cut the meat in slices, and dried it; and though there was some prejudice against it, it would have been very difficult to have detected any difference between it and beef; particularly if the animals had been in the same condition.
May 8.--As I found it necessary to follow the right bank of the river, in order to get out of this intricate country, I sent Mr. Gilbert and Charley to trace the river through the valley of lagoons. Having accomplished their object, they informed me that the river had no connexion with the lagoons of the large valley, but that several very large ones were even on its left bank; and that all tree vegetation disappeared from its banks where it passed through a part of the valley of lagoons.
May 9.--As my bullocks were still extremely foot-sore, it was necessary that we should travel only by short stages until they recovered; consequently, the day's journey did not exceed five miles in a N.N.E. direction; and, with the exception of some ridges, upon excellent travelling ground, along the left bank of the river. The latter formed, as I have already stated, the line of separation, first, between basalt and granite, and afterwards between basalt and a quartzose rock (probably baked Psammite). The country was beautifully open and well grassed; the river forming a simple channel, without trees, well filled with water and flowing between chains of lakes and lagoons on either side; one of which was covered with flocks of ducks and pelicans, resembling islands of white lilies.
Beyond the almost treeless flats round the lagoons, Casuarinas and Callistemon re-appeared along the river.
We saw some Blackfellows in the distance, who immediately withdrew as we approached them; but the tribe, which we had met at Reedy Brook, came to the other side of the river, and had much to say; we did not, however, take any notice of them, until we had unloaded our bullocks and finished our luncheon, when I went down to them, and gave them a horn of one of our slaughtered bullocks. Roper had saved the mane of his horse, and threw it over to them, but it seemed to frighten them very much. We inquired by signs as to the course of the river, and we understood by their answers, that it came a long way from the northward. At Reedy Brook the natives had given my companions to understand that the brook had its source not very far off to the W.N.W., by pointing at their heads, then at the brook, and then in the direction mentioned. I was therefore inclined to trust to their information about the river's source. They threw some yam-roots over to us, the plant of which we were not able to ascertain: and after that they retired.