From the Nive River a north-north-west course was pursued through a nearly level sandy country, covered with a scrub of acacia, eucalypti, bottle-tree, etc., which offered great impediments to our progress, till within six miles of the Victoria River, when we suddenly emerged from the scrub on to open downs of rich clay soil; but the drought had been of such a long continuance that the whole of the vegetation had been destroyed and swept away by the wind, leaving the country to all appearance an absolute desert. The bed of the Victoria was scarcely ten yards wide, and perfectly dry, so that it was only after a prolonged search along its course that a small puddle of water was found in a hollow of the clay flat, and near it, fortunately for our horses, a little grass growing in widely scattered tufts. THE BARCOO RIVER. 19th April. Being now on the line of route which Dr. Leichhardt had stated his intention of following, the party was divided, so that both sides of the river were examined in all probable positions in which his camps might have been situated; but as the high floods appeared to have inundated the country for nearly a mile on each bank last year, all tracks of previous explorers were necessarily obliterated, and it was only by marked trees, or the bones of cattle, that we could hope to discover any trace. During the first two days' journey down the river only a few small pools of water were seen, and these not of a permanent character, while the rich vegetation on the open downs, which had excited the admiration of Sir T. Mitchell on his discovery of the country in a favourable season, had wholly passed away, leaving little but a bare surface of clay, the deep fissures in its surface giving evidence of long-continued drought. 20th April. In latitude 24 degrees 37 minutes, longitude 146 degrees 13 minutes, a small sandy creek, of equal size with the Victoria, joined from the east, and just below the first permanent pool of water was found. There was a slight improvement in the grass, but dense scrubs prevailed in the back country, and even approached the river at intervals. LEICHHARDT'S MARKED TREE. 21st April.