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.