Nothing can be more melancholy and irksome than travelling over wilds, which nature seems to have condemned to perpetual loneliness and desolation. We seemed indeed the sole living creatures in those vast deserts.

The plains last travelled over were named Molle's Plains, after the late lieutenant-governor of the territory; and those on the opposite side, Baird's Plains, after the general to whom he once acted as aide-de-camp, and whose glory he shared. The naming of places was often the only pleasure within our reach; but it was some relief from the desolation of these plains and hills to throw over them the associations of names dear to friendship, or sacred to genius. In the evening three or four small fish were caught.

July 1.--Dark cloudy morning, with showers of rain. However desirous I was to proceed, I found that to do so would greatly injure the horses. Towards noon it cleared up, permitting me to take a tolerable observation, to ascertain our situation. I consider ourselves as peculiarly fortunate in being blessed with so dry and favourable a season; since all attempts to penetrate into the country during rain, or after an inundation of the stream, must have failed. I am quite convinced that at this place, when the banks are overflowed, the waters must extend from thirty to forty miles on each side of the stream, as we are that distance from any eminence. If there had been any nearer to the north, west, or south, we must have seen it from those extensive plains on which we have travelled for the last three days; for looking eastward, we can distinctly perceive Macquarie's Range, from which we estimate ourselves to be about thirty-five miles west. The stream was sounded in various places during the day, and its greatest depth never exceeded seven feet; the bottom and sides a stiff bluish clay. Latitude observed 33. 32. 22. S., longitude 145. 5. 50. E.; variation of the compass 6. 49. E.

July 2.--At nine o'clock we again set forward down the stream; our course, as it has hitherto done, lay over apparently interminable plains, nothing relieving the eye but a few scattered bushes, and occasionally some dwarf box-trees: the view was boundless as the ocean, neither eminence nor hillock appearing. On the edges of the stream alone, and the lagoons that occasionally branched from it, was any thing like timber to be seen. The occasional openings on the stream enabled us to perceive, that the north side was in every respect similar to the south: I was so much deceived, by the semblance of the plains on the other side to sheets of water, that I twice went down to the edge of the stream to assure myself to the contrary.

A strong current of water must frequently pass over these plains, as is evident from the traces left by the washings of shrubs, leaves, etc. The soil was a brown hazel-coloured sandy loam, very soft and boggy; in places it was more tenacious, water still remaining in many holes. By the marks on the trees it would seem that the stream occasionally overflows its banks to the depth of three or four feet; and five miles back from it small trees were seen, that had evidently stood from twelve to eighteen inches in the water. As usual we saw no recent signs of natives having visited these parts; here and there the remains of burnt muscle-shells would denote that at certain seasons the stream is visited by them for the purpose of procuring these shell-fish: I am clearly of opinion that, in dry summers, there is no running water in the bed of the present stream, and thus it is easy for them to procure the muscles from the shallow stagnant pools which would naturally be formed at every bend of the stream. To procure any such shell-fish whilst a stream like the present is running in it, is totally impossible.

Although we did not travel above eleven miles, we were nearly seven hours in performing it. Our halting place was within a few feet of the river, and so wet and spongy, that the water sprung even from the pressure of our feet; and this has been the case nearly ever since we made the stream, though of course we chose the driest spots. Neither hunting nor fishing were successful today, but as we had become from experience not over sanguine, our expectations were not much disappointed, and the aspect of the country promised nothing.

It had been remarked by all, for some days past, that a putrid sour smell seemed to proceed from the plains, and we were at first at some loss to discover the cause of it, as there did not appear sufficient vegetable matter in a decayed state to produce such an effect. Mr. Cunningham discovered that it proceeded from decayed plants of the salsolae, which produce the same effect as decayed sea-weed does in salt marshes; in short, all the plants found in our journey over these plains are the natural productions of low wet situations.

July 3.--So thick a fog arose during the night, that in the morning we could not see in any direction above one hundred yards; this delayed us considerably, and it was the middle of the day before we could proceed.

Our course lay over the same description of country as we had previously passed. The soil in some parts a red loamy mould; in others, a dark hazel-coloured sandy soil: this last appears to have its origin in the depositions left by floods, the former being the original or prevailing soil. The plants and shrubs the same as yesterday.

Several flocks of a new description of pigeon were seen for the first time; two were shot, and were beautiful and curious. Their heads were crowned with a black plume, their wings streaked with black, the short feathers of a golden colour edged with white; the back of their necks a light flesh-colour, their breasts fawn-coloured, and their eyes red. A new species of cockatoo or paroquet, being between both, was also seen, with red necks and breasts, and grey backs. I mention these birds thus particularly, as they are the only ones we have yet seen which at all differ from those known on the east coast. [Note: See the Plates.] Our visible horizon, in every direction, being merely studded with shrubs and low bushes, gave the scene a singular marine appearance. We stopped about two miles south of the river, not being able to reach it before night-fall, the marshy ground having driven us a considerable distance round.

July 4.--During this day's course we repeatedly attempted to gain the situation where we supposed the river to take its course, but were always disappointed; immense swamps constantly barred our attempts to travel northerly; these swamps were now covered with several feet of water, which, from the marks of dwarf trees growing in them, is sometimes three or four feet deeper. The same dead level of country still prevailed; and the sandy deserts of Arabia could not boast a clearer horizon, the low acacia bushes not in any degree interrupting the view. It was remarkable that there was always water where the dwarf box-trees grew; we might therefore be said to coast along from woody point to point, since all attempts to pass through them were uniformly defeated. The soil the same as yesterday, and most unpleasant to travel over, from the circular pools or hollows, which covered the whole plain, and which seem to be formed by whirlpools of water, having a deep hole in the bottom, through which the water appeared to have gradually drained off. It is clear that the entire country is at times inundated, and that as every thing now bears the appearance of long-continued drought, the swamps and stagnant waters are the residuum.

In the whole we proceeded upwards of fourteen miles, and stopped for the night upon the edge of one of the swamps, which are now the only places that afford any timber for firing. Some traces of natives were seen today, about three or four days old; they appeared to have been a single family of four or five persons. If there are any natives in our neighbourhood, they must have discovered us, and keep out of the way, otherwise upon these clear flats we could not avoid seeing them.

We were again fortunate enough to kill an emu, a most acceptable supply, since continued exercise gives us appetites something beyond what our ration can satisfy.

July 5.--Independently of the nature of the country rendering it altogether uninhabitable, the noxious vapours that must naturally arise during the heats of summer from these marshes (should the present surface of land on which we are now travelling be then free from water), would render the whole tract peculiarly unhealthy. Even during the short space of a fortnight, when it might be presumed that the winter's cold had in a great degree rendered the effluvia innoxious, every person in the expedition was more or less affected by dysenterical complaints; and the putrid sour smell that constantly attended us was symptomatic of what would be its effects when rendered active by the powerful heats of summer.

Although there was no grass out of the marshes for the horses to feed upon, yet they appeared to live very tolerably upon a species of atriplex which covered the plains, and being extremely succulent was eaten with avidity by them; they certainly preferred it to the grasses which the swamps produced.

Our route lay over the same unvarying plain surface as on the preceding days, and after travelling about five miles, we again saw the line of trees growing on the banks of the stream; and having performed about ten miles more, we halted on the immediate banks of it. These were considerably lower, being about six feet above the water; the current was almost imperceptible, and the depth did not exceed four feet, and was extremely muddy; the trees growing on the banks were neither so large nor so numerous as before, and a new species of eucalyptus prevailed over the old blue gum. The north-east side was precisely of the same description of country as the south-east. A very large sheet of water or lake lay on the north-west side, opposite to the place where we made the river. The horizon was clear and distinct round the whole circle, the line of trees on the river alone excepted. From the marks on these trees, the waters appear to rise about three feet above the level of the bank; a height more than sufficient to inundate the whole country. This stream is certainly in the summer season, or in the long absence of rain, nothing more than a mere chain of ponds, serving as a channel to convey the waters from the eastward over this low tract. It is certain that no waters join this river from its source to this point; and passing, as it does, for the most part, through a line of country so low as to be frequently overflowed, and to an extent north and south perfectly unknown. but certainly at this place exceeding forty miles, it must cause the country to remain for ever uninhabitable, and useless for all the purposes of civilized man.

These considerations, added to the state of our provisions, of which, at the reduced ration of three pounds of flour per man per week, we had but ten weeks remaining, determined me to proceed no farther westward with the main part of the expedition; but as the state of the greater part of our horses was such as absolutely to require some days' rest and refreshment, before we attempted to return eastward, I considered that it would be acting best up to the spirit of my instructions to proceed forward myself with three men and horses, and as we should carry nothing with us but our provisions, we should be enabled to proceed with so much expedition, as to go as far and see as much in three days as would take the whole party at least seven to perform.

My object in thus proceeding farther was to get so far to the westward as to place beyond all question the impossibility of a river falling into the sea between Cape Otway and Cape Bernouilli. In my opinion, the very nature of the country altogether precludes such a possibility, but I think my proceeding so far will be conclusive with those who have most strongly imbibed the conviction that a river enters the sea between the Capes in question, which was certainly an idea I also had entertained, and which nothing but the survey of a country, without either hills or