Left the camp at 7.30 a.m. and steered an average course south-south-east till 10.20, over stony ground, at the junction of the sandstone and trap formation, and camped at a fine running creek which came from a rocky gorge in the sandstone range to the west of our course. Messrs. Baines and Bowman, who had accompanied us thus far, returned to the camp, which I had instructed him to move to this creek as better for the horses, as one of them had shown symptoms of poison, and I feared to leave them in that locality. A severe attack of the fever, from which I had been suffering since the beginning of the month, precluded our proceeding farther this day, as I had at first intended. At 5 p.m. it commenced raining, and continued till midnight with incessant thunder and lightning. 31st January. Being able to mount my horse, at 8 a.m. left the camp and steered a course south-east by south, along the foot of the sandstone range--the basalt plain extending to the north-east. At 12.45 p.m. camped on a shallow watercourse trending to the south-south-west. The whole of the country to the east of our track, except some isolated hills, appear to be covered with excellent grass. The evening was raining, with continuous thunder. 1st February. Steered north 160 degrees east from 6.25 a.m. till 7.0 across the basaltic plain, then crossed a large creek trending east, in which there were some large pools of water. We then entered the sandstone country, and crossed several rocky ridges; at 9.10 we had a good view from one of the ridges to the north and east. Fine grassy plains extended almost to the horizon, to the south the country consisted of sandstone ranges, and to the south-east large grassy plains and rocky ridges appeared to alternate with each other. Changing the course to south-east, traversed a fine plain covered with grass, beyond which was a rocky ridge, and then a second plain, in which we halted at 11.10, as I was unable to keep on my horse, owing to an attack of fever. At 2 p.m. again proceeded, and after crossing some rugged country with deep rocky ravines, at length reached a large creek, at which we encamped, though there was nothing but reeds and triodia for the horses to eat. 2nd February. Left the camp at 6 a.m. and followed the creek up for three-quarters of an hour before we could find a crossing place; the course was then south-south-east over very broken sandstone country; at 9.50 halted in a grassy valley to feed the horses, and at 2.30 p.m. resumed our route south-east, crossed a sandstone ridge, and descended into a wide valley, the centre of which was occupied by a basaltic plain, at the edge of which we encamped at 3.55 p.m. CRESTED PIGEON. 3rd February.