Hunter's River; also a remarkable kind of Brome grass I had never seen on the Darling. Thermometer, at sunrise, 36 deg.; at 9 P. M., 61 deg.. 18TH JUNE.--Drizzling rain had fallen during the night, which greatly refreshed the grass for the cattle. Early this morning, I sent Corporal Graham and another man, up the river, in search of water; and the bullock-driver with his cattle down the river, with orders to go on until he fell in with some. Others of the party were directed to search amongst the rocky crevices nearer to our camp. I set out with Yuranigh for the summit of the mountain already mentioned, which, according to my survey, lay about seven miles off to the N.W. My ride to it was unimpeded by gullies; and, on ascending it, I obtained a most extensive view, embracing lofty ranges to the eastward and south-east. A line of volcanic cones (of which this was one) extended from these ranges in the direction of about N.E.b.N. But, besides these elevated summits, little could be seen of the adjacent country: nothing of the sandstone gullies, by which the party was then shut in. I could only imagine one bluey tint in a long line of ravines, to be over the bed of the Maran, which seemed thus to pass through the line of cones, and to come from high ranges about the 25th parallel. The country to the northward was still hidden from my sight by a portion of the old crater which was higher than that I had ascended. The western interior was visible to a great distance bounded by low ranges; some of which seemed to have precipitous sides, like cliffs, towards the west. Lines of open plains, and columns of smoke, indicated a good country, and inhabitants. I recognised, from this station, that eastward of the depot camp, to which, from the peculiar interest then attaching to that distant spot, I now named Mount Kennedy after the officer in charge of the party there. I could now intersect many of the summits observed therefrom; thus adding extensively to the general map, and checking my longitude, by back angles into the interior. I was now at a loss for names to the principal summits of the country. No more could be gathered from the natives, and I resolved to name the features, for which names were now requisite, after such individuals of our own race as had been most distinguished or zealous in the advancement of science, and the pursuit of human knowledge; men sufficiently well-known in the world to preclude all necessity for further explanation why their names were applied to a part of the world's geography, than that it was to do honour to Australia, as well as to them. I called this hill Mount Owen; a bald- forest hill to the N.E. of it, Mount Clift; a lofty truncated cone, to the eastward of these, the centre of a group, and one of my zero points, Mount Ogilby; a broad-topped hill far in the north-west, where I wished to continue my route, Mount Faraday; a high table land intervening,