June 21.--Fine mild weather: at eight o'clock set forward on our journey. The farther we proceed north-westerly, the more convinced I am that, for all the practical purposes of civilized man, the interior of this country westward of a certain meridian is uninhabitable, deprived as it is of wood, water, and grass. With respect to water, it is quite impossible that any can be retained on such a soil as the country is composed of, and no watercourses, for the same reason, can be formed; for, like a sponge, it absorbs all the rain that falls, which, judging from every appearance, cannot be much. The wandering native with his little family may find a precarious subsistence in the ruts with which the country abounds; but even he, with all the local knowledge which such a life must give him, is obliged to dig with immense labour little wells at the bottom of the hills to procure and preserve a necessary of life which is evidently not to be obtained by any other method. We proceeded through a broken irregular country for nearly six miles, when the evident weakness of the horses made it highly imprudent to attempt to proceed farther. We therefore halted under a high rocky hill, which was named Barrow's Hill; and sent round in all directions to look for water. The goodness of Providence came to our succour when we least expected it; an ample sufficiency for the people being found near the top of the hill in the hollow of a rock. I ascended Barrow's Hill, and from its summit had a very extensive prospect from the west north-west round to east-north-east. To the north the country appeared perfectly level, though the horizon was skirted with distant hammocks, which could be but faintly distinguished. To the north-east were some native's fires; and a lofty detached mountain was named Mount Flinders: a high range to the westward was named Macquarie's Range, in honour of his excellency the Governor. The men returned late after an unsuccessful search for water, having gone entirely round Mount Flinders. There was now nothing to be done but to drive the horses to the base of the hill under which we were encamped, and share with them the water whence we derived our own supply: it was obliged to be handed from man to man in the cooking kettle, out of which the poor animals drank; and I was happy to find that a sufficiency would still remain to supply us until Monday morning, when we intended again to set forward. June 22.--The morning mild, but a thick drizzling rain continued until near noon, when it cleared up. The variation of the compass was 7. 45. E.