Mr. Stapylton had also received my several communications Numbers 1, 2, 3, and 4, which he dug from the earth at various camps; thus we had for once eluded the keen eye of the aborigines in this kind of correspondence, although on my first journey we had not been so successful. My original plan on this expedition was to bury the letter under the ashes of my fire; cutting at the same time a cross in the turf where my tent had stood, as the mark by which Mr. Stapylton was to know that something was so deposited. But I subsequently improved on this plan and buried my letter in the centre of the cross by merely making a hole with a stick in the soft earth where the turf had been cut and dropping the letter into it. SURVEY OF THE MURRUMBIDGEE. In my instructions to Mr. Stapylton, sent by Burnett, I directed him to survey the course of the Murrumbidgee upwards from Guy's station until he connected our interior survey with the map of the colony. This he accomplished by measuring to the junction of the Doomot, a river he had himself previously surveyed. The direct distance between that junction and the point at which we first arrived on the Murrumbidgee was ascertained by Mr. Stapylton's measurement to be 34 3/4 miles, but according to my map of the interior country 36 1/2 miles; making an error of only 1 3/4 miles + or westward in a chain-measurement continued from the station at Buree, where the journey commenced, to the Darling, thence to the southern coast, and back to this point on the Murrumbidgee. The measurement was checked by latitudes determined nightly from observations of several stars, the difference between several amounting to a few seconds only. I availed myself of trigonometrical measurements also with a good theodolite wherever this was possible, in which case such a survey engaged my whole attention, and my route was often directed according to the position of good points. METEOROLOGICAL JOURNAL. The meteorological journal was kept more carefully during this journey than on the two preceding; and with the kind assistance of my friends Captain King and Mr. Dunlop it affords, in some parts at least, materials for comparing the atmospheric changes in the regions explored with those occurring simultaneously on the eastern coast. ARRIVAL OF THE EXPLORING PARTY AT SYDNEY. It was long before the party arrived in Sydney for, when it reached the Murrumbidgee and the apprehension of famine no longer existed, rest was so necessary for the cattle that it was indulged in for their sake chiefly, to an extent much beyond the wishes of the men. The oxen looked tolerably well therefore when the party did reach Sydney, although from so long a journey; and my men enjoyed at length the triumph among their fellows, to which they had long looked forward, on conducting the boat and boat-carriage safely once more into the yard of my office. PIPER AND THE MEN REWARDED.