July 2.—We moved on for 15 miles over extensive plains, covered principally with Rhagodia, and in some places stony, and halted early in the afternoon at a large dry watercourse, coming out from Flinders range. Though there was no water in this channel below the base of the hill, on sending a party a mile and a half up it with spades and buckets, we got, by digging in the gravelly bed, as much as sufficed for ourselves and horses. At this camp I observed the variation to be 7 degrees 24 minutes E.