At about eight miles we reached firm gravel consisting of small and very hard stones, precisely similar in character and position to that near Mount Murchison. The pebbles were mixed with red earth which also formed part of the lower features connected with the height before us. We crossed a deep gully, the bed of a creek in rainy seasons, but which had now been long dried up. The very hard sandstone still appeared, weathered to a purple colour; the lower part was most ferruginous, and not so hard as above; in the creek below I observed a red crust of clay and nodules of ironstone.
NEW SPECIES OF CASSIA.
There were several rocky and deep ravines in the side of the principal height, and in these the oat-grass, or anthisteria, appeared (for the first time since we had left the upper Bogan) also several plants which were new to me, and among them a bush of striking beauty, with a rich yellow flower, being a species of cassia.*
(*Footnote. This plant was found by Mr. Cunningham in 1817 on Mount Flinders, when he called it C. teretifolia. Dr. Lindley had described it as follows:
C. teretifolia, Cunningham manuscripts; incano-tomentosa, foliis pinnatis 5-6-jugis eglandulosis: foliolis teretibus filiformibus obtusis, paniculis terminalibus, ramulis corymbosis sub-5-floris, bracteolis ovatis obtusis concavis calycibusque tomentosis.)
VIEW FROM THE SUMMIT OF MOUNT MACPHERSON.
The summit of Mount Macpherson was clear but did not afford the view I expected. The height consisted of some ridges which did not appear much higher further to the westward: those in that direction being connected with the summit, and also with each other, and extending to the north and south, prevented me from seeing almost any of the features observed from Mount Murchison, which hill was barely visible. The only striking feature I could perceive east of the Darling was Greenough's group, which rose upon the horizon, level on that side, save where one or two summits of the higher ground to the eastward just appeared to break the sharpness of the bounding line. But the flatness of the north-western line of vision was still more remarkable, and it was difficult to understand how the basin of the Darling, which appeared so narrow below, could find limits there. The country to the northward, if not a dead level, was varied by only some slight undulations, and it was partially covered with stunted bushes, alternating with a few naked plains. As far as I could see with my glass no smoke appeared to rise from the vast extent visible in that direction. After taking the bearings of the different points we returned and recrossed the Darling about sunset. At the base of the hill we met with several kangaroos, and had some shots (with bullets) at a very tame bustard. There was a rocky channel where water can be but seldom scarce. We saw none but, from the presence of kangaroos, we thought that there must have been some very near the hill. This hill I named Mount Macpherson after the collector of internal revenue at Sydney.
July 30.
Proceeded on our journey by our former route and arrived by four P.M. at our old camp of the 18th and 19th June, which we again occupied. We were still at a loss to know for what purpose the heaps of one particular kind of grass* had been pulled and so laid up hereabouts. Whether it was accumulated by the natives to allure birds, or by rats, as their holes were seen beneath, we were puzzled to determine. The soft ground retained no longer the footsteps imprinted on it by the haymakers, whoever they had been. The grass was beautifully green beneath the heaps and full of seeds, and our cattle were very fond of this hay. I found there also two other kinds of grass which were equally new to me, the one being an Andropogon allied to A. bombycinus; the other apparently a species of Myurus.
(*Footnote. Panicum laevinode, Lindley manuscripts; for description see above.)
July 31.