As soon as I missed my horizon glass, and entertained the suspicion of natives being about, I hurried into the tent and lighting a large blue light, run with it rapidly through the bushes around me. The effect of this was very beautiful amidst the darkness and gloom of the woods, and for a great distance in every direction objects could be seen as well as by day; the natives, however, were gone, and I could only console myself by firing a couple of balls after them through the underwood to warn them of the danger of intruding upon me again; I then put every thing which had been left outside, into the tent, and kept watch for an hour or two, but my visitors came no more. The shots, or the blue light, had effectually frightened them. They had, however, in their turn, produced as great an effect upon me, and had at least deprived me of one night's rest. September 20.--Rising very early I set to work, with an axe, to clear away the bushes from around my tent. I now discovered that the natives had been concealed behind a large tea-tree not twenty yards from the tent; there were numerous foot-marks there, and the remains of fire-sticks which they had brought with them, for a native rarely moves at night without fire. By working hard I cleared a large circle with a radius of from thirty to forty yards, and then piling up all the bushes outside and around the tent, which was in the centre, I was completely fortified, and my sable friends could no longer creep upon me to steal without my hearing them. I spent great part of the day in charting, and took a few angles from the tent, but did not dare to venture far away. At night, when it was dark, I mounted guard with my gun for three hours, walking round outside the tent, and firing off my gun before I lay down, which I did with my clothes on, ready to get up at a moment's notice. Nothing, however, disturbed me. September 21.--I had been occupied during the greater part of the day in charting, and in the evening was just shouldering my gun to mount guard again, when I was delighted to see Mr. Scott returning with the dray, and the party all safe. They had executed the duty entrusted to them well, and had lost no time in rejoining me; the horses were, however, somewhat fatigued, having come all the way from the range in one day. Being now reinforced, I had no longer occasion to mount guard, and for the first time since the natives had stolen upon me, enjoyed a sound sleep.