The whole country from the large flat to our camp, was composed of felspathic porphyry, containing crystals of felspar, and accidentally of quartz, in a paste varying in colour and hardness.

In the bed of the river, I still found pebbles of pegmatite, granite, quartz, and basalt; indicating that a country of varied character was before us.
The stream wound its way from one side of the broad sandy bed to the other; and those parts where it flowed, were generally very steep, and covered with a dense vegetation, whilst, on the opposite side, the banks sloped gently into the broad sands.

Among the shrubs and grasses, a downy Abutelon was easily distinguished by its large bright yellow blossoms.
My Blackfellows procured several messes of ducks; and Brown brought me a piece of indurated clay with impressions of water-plants.
April 19 .-- Continuing our journey in a north-west direction, we passed over some very rocky hills, composed of indurated clay, and thin strata of sandstone, and pudding-stone.

By moving along the foot of a range of high hills, we avoided all those deep gullies which intersected the banks of the river, and travelled with ease through a flat, well grassed Ironbark forest.

The hills were covered, as usual, with stunted silver-leaved Ironbark.