Steering to the north-west we passed over a sandy country, covered with low heathy plants, and grasstrees, and having granite elevations scattered over its surface at intervals. Under these hills fresh water swamps and native wells were constantly met with, and at one of them we encamped for the night, after a stage of about four miles. During the day, we passed a variety of beautiful shrubs, and among them were many different kind of Banksias, one was quite new to me, and had a scarlet flower, which was very handsome. The fossil formation still constituted the geological character of the country, most of the lower ridges of rock intervening between the various hills of granite, exhibiting shells in great abundance. In the more level parts, the surface was so coated over with sand, that nothing else could be seen. I have no doubt, however, that the whole of the substrata would have been found an uninterrupted continuation of the tertiary deposit. At night I observed native fires about a mile from us, in a direction towards the sea; but the natives did not come near us, nor was I myself anxious to come into communication with them whilst my party was so small. The evening had set in with steady rain, which continuing with little intermission during the night, wet us considerably. June 16.--This morning, I found I had caught cold, and was very unwell. Upon leaving the encampment, we steered N. 30 degrees W. to clear a rocky hill, passing which, on our left at six miles, we changed the course to W. 10 degrees N. Three miles from the hill, we crossed a small stream of brackish water running very strongly towards the sea, and then halted for the day upon it, after a short stage. The country we had traversed in our route, still consisted of the same sandy plains and undulations, covered with low shrubs, heathy plants, grass and cabbage-trees, with here and there elevations of granite, and fresh water swamps: in and around which, the soil was black and very rich; very little wood was to be met with anywhere, and nothing that deserved the appellation of trees. The country, inland, appeared to rise gradually, but did not seem to differ in character and features from that we were traversing.