Oct. 17.--The ground was too heavy and boggy to permit us to start yesterday; besides, three horses were absent, and could not be found. Last night, Mr. Roper brought in three ducks and a pigeon, and was joyfully welcomed by all hands. Charley had been insolent several times, when I sent him out after the cattle, and, this morning, he even threatened to shoot Mr. Gilbert. I immediately dismissed him from our service, and took from him all the things which he held on condition of stopping with us. The wind continued from the west and south-west. Oct. 18.--Towards evening Charley came and begged my pardon. I told him that he had particularly offended Mr. Gilbert, and that I could not think of allowing him to stay, if Mr. Gilbert had the slightest objection to it: he, therefore, addressed himself to Mr. Gilbert, and, with his consent, Charley entered again into our service. John Murphy and Caleb, the American negro, went to a creek, which Mr. Hodgson had first seen, when out on a RECONNOISSANCE to the northward, in order to get some game. John had been there twice before, and it was not four miles distant: they, however, did not return, and, at nine o'clock at night, we heard firing to the north-east. We answered by a similar signal, but they did not come in. I sent Mr. Hodgson and Charley to bring them back. If they had simply given the bridle to their horses, they would have brought them back without delay; but probably both got bewildered. The latitude of this lagoon, which I called Kent's Lagoon, after F. Kent, Esq., is 26 degrees 42 minutes 30 seconds. We tried to obtain opossums, during the clear moonlight night, but only caught the common rabbit-rat. Our horses go right into the scrub, to get rid of the little flies, which torment them. The weather is very fair; the regular westerly breeze, during the day, is setting in again: the dew is very abundant during clear nights: the morning very cold; the water of the lagoon 8 degrees to 10 degrees warmer than the air. We have regularly balanced our loads, and made up every bag of flour to the weight of 120 pounds: of these we have eight, which are to be carried by four bullocks. The chocolate and the gelatine are very acceptable at present, as so little animal food can be obtained. The country continues to be extremely boggy, though the weather has been fine, with high winds, for the last four days. Tracks of Blackfellows have been seen; but they appear rare and scattered in this part of the country. Though we meet with no game, tracks of kangaroos are very numerous, and they frequently indicate animals of great size. Emus have been seen twice. Thermometer at sunset 65 degrees 7 minutes (75 degrees in the water); at a quarter past one, 90 degrees. South-westerly winds.