h, with some cockatoos, and a small scrub
wallabi, gave us several good messes.

Mr. Gilbert and Brown had, on their excursion, found a rushy lagoon on
the left bank of the Isaacs, at a short half-mile from its junction with
Hughs's Creek. Here they encamped; and, about 10 o'clock at night, the
loud voices of Blackfellows travelling down the river were heard; these
also encamped at some small water-holes, not very distant from Mr.
Gilbert, of whose presence they were not aware. Mr. Gilbert kept the
horses tied up in case of any hostility; but was not molested. The blacks
continued their loud conversations during the greater part of the night;
and Mr. Gilbert departed very early in the morning without being seen by
them. He continued to follow the river further down, and found that four
large creeks joined it from the northward. Another creek also joined it
from the southward; as subsequently observed by Mr. Roper. Beyond these
creeks, several lagoons or swamps were seen covered with ducks, and
several other aquatic birds, and, amongst them, the straw-coloured Ibis.

Feb. 15.--We travelled down to the above-mentioned lagoon, which was
about ten miles east by north from our camp; its latitude, was by
calculation, about 22 degrees 20 or 21; for several circumstances had
prevented me from taking observations. As the river turned to the
eastward, I determined to trace it up to its head; and set out with Mr.
Gilbert and Brown to examine the country around the range which I had
observed some days before and named "Coxen's Peak and Range," in honour
of Mr. Coxen of Darling Downs. We passed the night at a small pool, but
were not successful in discovering water in any of the numerous
watercourses and creeks, which come down from Coxen's Range, or out of
the belt of scrub which intervened between the range and the river. A
loose variegated clayey sandstone, with many irregular holes; cropped out
in the beds of the creek. Coxen's Peak and Range were found to be
composed of horizontal strata of excellent sandstone, rising by steep
terraces, on the western side, but sloping gently down to the east; its
summit is covered with scrub, but its eastern slope with groves of
grass-trees. The view from the top of Coxen's Peak was very extensive:
towards the south-west and west, Peak Range was seen extending from
Scott's and Roper's Peaks to Fletcher's Awl; and, beyond the last, other
mountains were seen, several of which had flat tops. Moun