At this time, I was suffering from a great irritability of the skin, and was covered all over with a prickly heat; the slightest pressure or rubbing produced inflammation and boils, particularly about the knees: and Mr. Phillips suffered in the same way, at the arm and elbow. Mr. Gilbert had been subject to these boils when we were travelling at Peak Range, and along the Isaacs; but, since that time until now, none of the party had been inconvenienced by them. Oct. 29.--We travelled about twelve miles N.N.W., and followed the creek about four miles, to allow our cattle and horses to drink freely at the water-hole discovered by Charley the day before. We passed some plains, and through a broad-leaved tea-tree forest, and then skirted a thick scrub, which covered the approaches of a range. After seven miles travelling, we came to an immense flat lightly timbered with box and broad-leaved tea-tree, and surrounded on every side, except the S.S.E., by high ranges, protruding like headlands into the plain. Upon passing them afterwards, I found them to form undulating chains of baked sandstone hills. We crossed several small watercourses going to the north-east and east, and came to a considerable creek, near which basalt cropped out. This was the first igneous rock of more recent date, that we had met with since leaving Separation Creek, and the upper Lynd. Even my Blackfellows recognized at once the rock of Darling Downs; and we hailed it as the harbinger of western waters. The whole country up the creek had been lately burned, which induced me to follow it towards its head, in hope of finding the place where the natives had procured water. The bed was filled with basaltic boulders, as were also its dry holes, from one of which the Grallina australis rose, and for the first time deceived our expectations. In a wider part of the valley, I observed wells of the natives dug in the creek, which we enlarged in the hope of their yielding a sufficient supply of water; but in this we were mistaken, as barely enough was obtained to quench our own thirst. Charley, however, in a search up the creek, and after a long ramble, found a small pond and a spring in a narrow mountain gorge, to which he had been guided by a beaten track of Wallurus. Our horses and bullocks, which were crowding impatiently round the little hole we had dug, were immediately harnessed, and we proceeded about three miles in a north direction to the head of a rocky valley, where our cattle were enabled at least to drink, but all the grass had been consumed by a late bush fire.