Dec. 19.--We completed our job, by melting down the fat, with which our saddles, bridles, and all our leather gear, were well greased. In the afternoon Mr. Calvert and Charley, who had been sent after the bullock we had left behind, returned with him. They had found him quietly chewing the cud, in a Bricklow grove near a small pool of water. Dec. 20.--Whilst employed in arranging our packs, Murphy and Charley went out to examine the surrounding country. On their return they informed me that they had met with a native camp, the inhabitants of which were probably out hunting, for they had left all their things behind. Capparis Mitchelii was found in blossom. The cockatoo parrakeet of the Gwyder River, (Nymphicus Novae Hollandiae, GOULD.), the common white cockatoo, and the Moreton Bay Rosella parrot, were very numerous. We also observed the superb warbler, Malurus cyaneus of Sydney; and the shepherd's companion, or fan-tailed fly-catcher (Rhipidura); both were frequent. Several rare species of finches were shot: and a species of the genus Pomatorhinus, a Swan River bird, was seen by Mr. Gilbert. The latitude of this encampment was found to be 24 degrees 44 minutes 55 seconds. Dec. 21.--As our meat was not entirely dry, I thought it advisable to remain another day at this place, which was usefully occupied by packing the fat into bags made of the hide of the animal. Besides the plants above-mentioned, a beautiful blue Nymphaea was found growing in the lagoon; and around it, among the reeds and high cyperaceous plants, a small labiate, a Gomphrena, the native Chamomile, and a Bellis were growing. The days continue very hot. At 5 P.M. we had a thunder-storm from the southward: but little rain fell. It cleared up at seven o'clock; very heavy dew in the morning. Dec. 22.--We travelled to-day about five miles in a north-north-west direction, and encamped at the creek where Charley and his companion had seen the huts of the natives, which we found deserted. Our route lay through a flat country, timbered with true box, (small Acacias forming the underwood), along a fine lagoon on which were a number of ducks; farther on, the Bastard box prevailed, with silver-leaved Ironbark, and patches of Bricklow scrub, of Vitex and of the native lemon. A small tree (a species of Acacia) was also seen about thirty or forty feet high, with slightly drooping branches, and lanceolate deep green phyllodia about one inch. I reconnoitred with Charley, and found that the creek soon became enveloped by scrub: to the west and south-west rose ranges of a moderate elevation, parallel to which we travelled; plains frequently interspersed with scrub, which became more dense as it approached the foot of the ranges. From these appearances I determined upon sending my party back to Brown's Lagoons, to secure water; whilst I should examine the country in advance, in order to ascertain the extent of the scrub, in which we were entangled.