A heavy dew having fallen during the night, our horses were much refreshed, and we were enabled to proceed with the scanty supply of water carried with us. In an hour we struck upon the channel of a river with a sandy bed, 300 yards wide, in which were a few pools of water, under a bold sandstone bluff, rising abruptly 300 feet from the plain. From the summit of this hill the river was observed to trend to the north-north-west for eight or ten miles, and to come upon a gap in a granite range four miles to the south-south-east, towards which we now turned our steps, across extensive beds of soft drift-sand brought down by the river. Cajeput and acacia trees occupied a large portion of the channel, and it was not until reaching the gorge in the range that grass was met with in sufficient quantities to supply our wants. Several large pools, teeming with water-fowl, occupied the whole of the valley, which here was fully a quarter of a mile wide. The remainder of the day I devoted to sketching and triangulating the country, while the horses were enjoying the benefit of the fine feed. Camp 57. Latitude 21 degrees 6 minutes 26 seconds. 10th August. As this river, from its magnitude, afforded a fair chance of working to the south-east, I determined to bring forward the rest of the party. Having named this river the Yule, we returned to the depot party by a somewhat shorter cut, making it in about thirty miles, which we accomplished by sundown. 11th August (Sunday). Party resting. Observed a set of lunars, which placed us in longitude 118 degrees 3 minutes east, the rate of the chronometer being still so irregular as to be almost useless. 12th August. To-day the whole party proceeded twenty-four miles towards the Yule, finding a small pool of water in a rocky ravine by the way which we had missed on our former trip. Bivouacked in an open grassy plain six miles short of the river. 13th August. Moved on to our camp of the 9th, and halted there for the remainder of the day. The latitude by meridian altitude of the sun I found to be 21 degrees 6 minutes 22 seconds. 14th August.