plant that we have been searching for since we got our last supply at the Leichhardt River, to use as a substitute for tea; and also found—­what interested us much more—­the old tracks of an expedition party.  The tracks were very indistinct but, as Fisherman succeeded in following them for a short distance to the north-west, I suppose that they were the tracks of Walker’s party when on their way from the Nogoa to the Albert River.

March 17.  Camp 27, situated on the left bank of a southern outlet from the Flinders River at a point about five miles south-south-west from the table-topped ranges on the opposite side of the river.

The horses were so much scattered that almost the whole of the forenoon was spent in bringing them in.  The main party left camp rather before noon.  Jemmy and I stayed behind to get an observation of the sun.  Started on the tracks of our party at 12.20.  We came along unwooded, well-grassed land at the back of country wooded with myall for three and a half miles, then over country more overrun with roley-poley but otherwise of a similar character for two miles to the termination of the myall.  Here I observed that we were about four and a half miles west from the end of a range, which I suppose confines the river on its right bank, and north-west from Frederick Walker’s Table Mountain.  After coming four and a half miles we reached a place where there was plenty of good water and grass with a high bank and encamped, as Gleeson was very unwell.  The last distance—­four and a half miles—­was over unwooded downs covered with barley and other grasses.  Came on the following courses:  1.30 south-east three and a half miles; east-south-east two miles. 3.40 east-south-east four and a half miles.  Distance come today ten miles.

March 18.  Camp 28, situated near the left side of a watercourse of the Flinders River at a point bearing 130 degrees from Frederick Walker’s Table Mountain.

The horses were scattered almost as much as they were yesterday morning and the most of the forenoon was spent in mustering them.  Started at 10.35.  When we had gone towards Frederick Walker’s Table Mountain for three miles Jemmy and I left our path on the high ground and went down on a flat extending to the northward for about two miles, where, taking an observation, I made the meridian altitude of the sun 70 degrees 13 minutes, latitude 20 degrees 40 minutes 30 seconds.  Started after the main party at 12.15.  Having ridden seven miles we reached Frederick Walker’s Table Mountain and ascended it.  From its high summit I observed that stretching across part of the horizon there was nothing to be seen but plains.  Along another part, on the south-eastern side, there was a succession of ranges from which we bore in the following way:  From the end of the ranges in the distance 151 degrees; a distant range 147 degrees; a red rocky hill about seven miles distant 140 degrees; a table range about one and a half miles