3D NOVEMBER.--The river accompanied us but a short way this day, as I had determined to follow a straight line towards the junction with the Balonne, aware that the course of the river, for ten or twelve miles above that point, turned very much to the westward. We passed through much open forest, and over much sandy ground, on which the callitris always appeared to predominate. Little scrub lay in our way. At length, plains again appeared before us through the trees; and, beyond them, after travelling twenty-two miles, we saw before us the river line, running north-east. We crossed it, and still continued to travel on towards the main river; but night overtook us when not far distant from it, so that we were obliged to encamp within the distance of a mile and a half, after a journey, with carts, of 261/2 miles. Here occurred the only Epiphyte observed during the expedition. It was growing in the dead parts of trees in the forest, and proved to be the CYMBIDIUM CANALICULATUM of Brown. One of the specimens had a raceme of flowers above a foot long. The fragrant JASMINUM MITCHELLII occurred, with narrower leaves than usual, at the foot of the forest trees. JUSTICIA ADSCENDENS, an inconspicuous weed, covered the plains in large tufts. The MELALEUCA TRICHOSTACHYA was there; and on the plains, and in open forests, grew a woolly. ANDROPOGON, which appeared not to be distinct from the A. BOMBYCINUS. In the open forest grew, here and there, the delicate COESIA OCCIDENTALIS, and on the plains a small species of HEDYOTIS; a new CALOCEPHALUS in bunches[*], and a creeping plant, with yellow flowers, since found to be a new species of GOODENIA.[**] Thermometer, at sunrise, 51 deg.; at noon, 85 deg.; at 4 P.M., 86 deg.; at 9, 66 deg.;--with wet bulb, 54 deg.. Height above the sea, 819 feet. [* C. GNAPHALIOIDES (Hook. MS.); annua erecta arachnoidea superne dichotome ramosa, foliis linearibus, capitulorum glomerulis laxiusculis corymbosis, involucri cylindracei squamis pellucidis albis.--Probably a distinct genus.]