August 20.--This day after travelling upwards of nine miles, and having pushed the horses at the risk of their lives through two minor branches of the bog, what was our mortification to find, that we were within a few hundred yards of the spot we set out from! We had first attempted to cross the main bog northerly, and afterwards kept along its edge southerly; and the result was, that we found it to extend in a complete circle around us. From a slight rise in the centre of it, we could see the country to the north-east, north, and north-west, low and uneven; Hardwicke's Range distant about forty miles, bounding it between the north and east. The result of this day's exertion quite subdued our fortitude, and for a moment a feeling nearly allied to despair had possession of our minds. We knew not which way to turn ourselves. To return to Arbuthnot's Range, and again undergo what it had cost us so much to overcome, could not be thought of for a moment; but upon that mature reflection which our serious situation demanded, it was deemed the most prudent plan to return so far back as would enable us to reach the higher lands to the south-east. This we expected to do by Saturday evening: twenty miles back we had left land of considerable elevation; and we could only hope that in its vicinity we should find a dry ridge on which to accomplish our purpose, and occasionally a patch of country in which the horses might find subsistence; for they were at present very much reduced. August 23.--We returned yesterday to Parry's Rivulet, within twelve miles of Weltden Valley, which was the whole distance we had gone in the direction of our course towards the coast, although we had travelled during the week upwards of seventy miles. The weather for the last four days has been extremely tempestuous, with slight showers of hail and rain: the winds were chiefly from the west and north-west, the temperature being extremely cold for the latitude and season. The observations of to-day place this station in lat. 30. 57. 20., long. 149. 20. E. Variation 8. 42. E.