Having closed my despatches, and answered the numerous friendly letters I had received, my attention was next turned to the changes that had taken place at Mount Harris during our absence. The Macquarie, I found, had wholly ceased to flow, and now consisted of a chain of ponds. Such of the minor vegetation as had escaped the fires of the natives, had perished under the extreme heat of the season. The acacia pendula stood leafless upon the plains, and the polygonum junceum appeared to be the only plant that had withstood the effects of the drought. Yet, notwithstanding this general depression of the vegetable kingdom, the animals that had been brought from Wellington Valley were in the best condition, and were, indeed, too fat for effective labour; it might, therefore, be reasonably presumed, that herbage affording such nourishment in so unfavourable a season, would be of the richest quality, if fresh and vigorous under the influence of seasonable, and not excessive, rains.

FIRING OF THE GREAT MARSHES.

The appearance of the country was, however, truly melancholy; there was not a flower in bloom, nor a green object to be seen. Whether our arrival had increased their alarm, is uncertain, but the natives continued to fire the great marshes, and as the element raged amongst them, large bodies of smoke rose over the horizon like storm clouds, and had the effect of giving additional dreariness to the scene. I am inclined to think that they made these conflagrations to procure food, by seizing whatsoever might issue from the flames, as snakes, birds, or other animals; for they had taken every fish in the river, and the low state of its waters had enabled them to procure an abundance of muscles from its bed, which they had consumed with their characteristic improvidence. They were, consequently, in a starving condition, and so pitiable were their indications of it, that I was induced to feed such of them as visited the camp, notwithstanding their late misconduct; being likewise anxious to bring about a good understanding, as the best means of ensuring the safety of the smaller party when we should separate, of which I had reason to be doubtful. These people had killed two white men not long before my arrival among them, and as the circumstances attending the slaughter are singular, I shall relate them.

SLAUGHTER OF TWO IRISH RUNAWAYS.

The parties were two Irish runaways, who thought they could make their way to Timor. They escaped from Wellington Valley with a fortnight's provision each, and a couple of dogs, and proceeded down the Macquarie. About the cataract, they fell in with the Mount Harris tribe, and remained with them for some days, when they determined on pursuing their journey. The blacks, however, wanted to get possession of their dogs, and a resistance on the part of the Europeans brought on a quarrel. It appears, that before the blacks proceeded to extremities, they furnished the Irishmen, who were unarmed, with weapons, and then told them to defend themselves, but whether against equal or inferior numbers, I am uninformed. One of them soon fell, which the other observing, he took his knife out, and cut the throats of both the dogs before the blacks had time to put him to death. He was, however, sacrificed; and both the men were eaten by the tribe generally. I questioned several on the subject, but they preserved the most sullen silence, neither acknowledging nor denying the fact.

ARBUTHNOT'S RANGE.

Mr. Hume had been one day on Mount Harris, and while there, had laid his compass on a large rock, near to which Mr. Oxley's boat had been burnt. To his surprise, he found the needle affected; and his bearings were all wrong. I subsequently went up to ascertain the extent of the error produced, and found it precisely the same as Mr. Hume noticed. When I placed the compass on the rock, Mount Foster bore from me N. by W., the true bearing of the one hill from the other being N.N.W. My placing my notebook under the compass did not alter the effect, nor did the card move until I raised the instrument a couple of feet above the stone, when it first became violently agitated, and then settled correctly; and my bearings of the highest parts of Arbuthnot's Range, and of its centre, were as follows:

Mount Exmouth to the N ...... N. 86 E.
Centre....................... N. 85 E.
Vernon's Peak................ N. 89 E.
Distance 70 miles.

Having finished my reports and letters, it became necessary to consider the best point on which to move, and to fix a day for our departure from Mount Harris. It struck me that having found so important a feature as the Darling River, the Governor would approve my endeavouring to regain it more to the southward, in order to trace it down. I, therefore, detached Mr. Hume to survey the country in that direction, and to ascertain if a descent upon the Bogen district would be practicable, through which I had been informed a considerable river forced itself. The report he made on his return was such as to deter me from that attempt, but he stated that the country for 30 miles from the Macquarie was well watered, and superior to any he had passed over during the journey; beyond that distance, it took up the character of the remote interior, and alternated with plains and brush, the soil being too sandy to retain water on its surface. He saw some hills from the extremity of his journey, bearing by compass W.S.W. We consequently determined to make for the Castlereagh, agreeably to our instructions. Preparations were made for breaking up the camp, all the various arrangements in the change of animals were completed, the boat carriage was exchanged for a dray, and I took Boyle in the place of Norman, whose timidity in the bush rendered him unfit for service.

CIRCUIT OF THE GREAT MARSHES.