Preparing equipment for the party proceeding to explore the Victoria River, towards the upper part of its course; the grass has become quite green and fresh water is also abundant, which has caused some of the horses to stray beyond the usual feeding ground on the Whirlwind Plains. 24th November. Mr. H. Gregory and Mr. Flood brought in the stray horses, having found them beyond Sandy Island. The timber party returned to the camp with four logs of timber, which are intended to strengthen the keelson. While at work at the creek where the timber was procured the party had been twice visited by the blacks; these intrusions were neither decidedly friendly or hostile, but they stole some small articles which had been imprudently left lying near one of the logs of timber while the party was employed elsewhere; about 10.0 a.m. the blacks set fire to the grass about 200 yards from the camp, and then retired. At 2.0 p.m., left the camp, accompanied by Messrs. H. Gregory, Wilson, and Mueller, with seven horses and twenty days' provisions, the object being to examine the country through which the exploring party will have to travel on the route to the interior; at 6 a.m. bivouacked at Timber Creek; in the principal channel of the creek there were many small pools of water, and the grass was fresh and green on the flats. Except on the banks of the river and creeks, the country is very poor and stony; the geological structure of the country is the same as at Sea Range--the same bands of sandstone cliff resting on soft shales, the strata being horizontal; but beneath the shales chert and coarse siliceous limestone were exposed, and fragments of jasper are frequent. The principal timber is white-gum of small size, and the cotton-tree (cochlospermum), which sometimes attains the thickness of nine to twelve inches. Though grass is abundant on every description of soil, yet the greater part is of inferior descriptions and dries up completely at this season. Latitude by altitude of Achernar, 15 degrees 39 minutes 43 seconds. 25th November. Started at 5.45 a.m., and followed the creek to the south-south-east; it rapidly decreased in size, branching into small gullies, so that we had some difficulty in finding water for a midday halt. The flats on the bank of the creek are in some parts nearly a mile wide, well grassed and openly timbered; the hills are of sandstone, but chert and coarse limestone were frequently seen on the lower ridges. At noon halted at a small pool of rainwater. The day was cloudy and cool, the thermometer only 90 degrees at 2 p.m. At 3.0 resumed our route up the creek, which soon terminated in small gullies rising in stony ridges; as there was no appearance of water to the south, the course was changed to south-east and east, in which direction we followed down a gully, and at 7.20 halted at a small waterhole. 26th November.