I changed my course I have come through a patch of mulga and other scrubs with plenty of grass, but no watercourses. Wind south-east; heavy clouds from the north-west; lightning in the south and west. Thursday, 24th May, Range of Low Hills. This morning I feel very ill from climbing the bluff yesterday; I had no sleep during the night, the pains being so very violent. About 9 o'clock we had a heavy shower of rain, and a little more during the night. Very late before the horses were found, and the atmosphere very thick, with the prospect of rain for the rest of the day. This and my being so ill have decided me to remain here until to-morrow, there being sufficient rain water for the horses. A few more light showers during the afternoon and evening. Wind still the same; heavy clouds from the north-west. Friday, 25th May, Range of Low Hills. I feel better this morning. The clouds have all gone during the night, and it is now quite clear. Started for Mount Strzelecki, passing through some very thick mulga scrub, with a few gum-trees and plenty of grass. At twenty-one miles came upon a small gum creek, where we gave the horses water, filled our own canteens, and proceeded to the foot of the mount and camped. At a mile from its base the spinifex begins again. Wind south-east. Very cold. Saturday, 26th May, Mount Strzelecki. Ascended the mount, and built a cone of stones. To the east are hills connected with this range, which I have named Crawford Range, after ---- Crawford, Esquire, of Adelaide. To the east-north-east is a large wooded undulating plain, with another range in the extreme distance. To the north-east the distant range continues with the same plain between. At a bearing of 55 degrees is a large lagoon, in which there appears to be a little water. To the north-north-east the plain appears to be rather more scrubby, and with a few sand hills. To the north the point of the distant range is lost sight of by some high scrubby land. To the west there are a few low hills, from fifteen to twenty-five miles distant. This range is composed of a hard flinty quartz, partly of a blue colour, with a little ironstone. We can find no permanent water in this range, but, from the two or three native tracks, quite fresh, which we have passed, I think there must be some about. Descended, and proceeded round the range to the lagoon, the range being too rough to cross. There is not enough water to be a drink for the horses. Camped. Very heavy clouds from the north-west. The mount is about four miles distant. At sundown there was a beautiful rain for an hour. It is very strange, the clouds come from the north-west, and the wind from the south-east. The rain seems to be coming against the wind.