my return.

After reflecting on my position, I decided to rejoin my party without
delay; and descending the range to the S. E., I steered for a large
watercourse we had crossed in the morning; intending to trace it up, for
the purpose of examining its branches. The bed of this watercourse, at
first, was very wide, and lined with gum-trees; but as I advanced, I
found its channel became contracted, and very rocky, the gum-trees
disappearing, and giving place to the salt-water tea-tree. By nightfall,
I was unable to proceed any further, owing to the large stones and rocks
that interposed themselves. Retracing my steps, therefore, for a mile or
two, to a little grass I had observed as I passed by, I bivouacked for
the night, being, as well as the horses, quite knocked up. The native
boy, who accompanied me, was equally fatigued; and we were both lame from
walking across so rugged a country, over a great portion of which we
found it quite impracticable to ride. Our stage could not have been less
than twenty-five or twenty-six miles during the day, yet we had not met
with a drop of water, even though we had high ranges, large watercourses,
and huge gum-trees on every side of us. As usual, the traces of high
floods were numerous; and the channels of these watercourses, confined as
they are by precipitous ranges, must, at times, be filled by rapid and
overwhelming torrents, which would collect there after heavy rains.

Some great progressive change appears to be taking place in the climate
and seasons of this part of the country, as, in many of the watercourses,
we found all the gum-trees either dying or dead, without any young trees
growing up to replace them. The moisture which had promoted their growth,
and brought them to maturity, existed no longer; and in many places, only
the wreck of noble trees remained to indicate to the traveller what once
had been the character of this now arid region. In other watercourses the