CROSS THE MAIN DIVIDING RANGE. 11th October. Leaving the camp at 7.0 a.m., steered an easterly course over somewhat barren granite country, timbered with cypress and ironbark; passed close to a hill on the highest point of the range, the summit of which, by approximate measurement, rose to 2500 feet above the sea. Then following a spur of the range we reached the well in the sandy creek at 1.5 p.m. Having cleared out the sand and banked it up with stakes and brushwood, a plentiful supply of water was obtained at about five feet below the surface of the dry channel. Latitude by e Pegasi 18 degrees 45 minutes 53 seconds. 12th October. At 7.0 a.m. steered north 60 degrees east over undulating granite country, timbered with ironbark and box, the grass scanty and very dry; at 8.45 crossed a large creek coming from the south. Its channel was 100 yards wide, dry, sandy, and a few pools of shallow water; the banks ten to twenty feet high. Crossing several gullies trending northward, at noon came on a dry sandy creek, also trending to the north. On its right bank was a level flat of cellular lava or basalt. Following the course of the creek, at 1.50 p.m. camped at a fine lagoon a quarter of a mile long and seventy yards wide, the water appearing to be about ten feet deep, although unusually low at the present time. A high range of hills exist to the north of this creek, and the watercourses all trend to the north-west; and, as our latitude is the same as the Reedy Brook of Leichhardt on the south-west side of the Valley of Lagoons, it is evident that these streams do not join the Burdekin, but are tributary to the Lynd, joining it probably at the southern bend. Latitude by b Aurigae 18 degrees 38 minutes 12 seconds. 13th October.