The heights of some of these hills above their base, which had a considerable elevation above the sea level, were in three instances as follows: February 28.
The measured height of a hill above its base was 331 feet.
March 4.
Measured the altitude of a hill above its base and found it to be 222 feet.
March 8.
Measured the altitude of a hill above its base and found it to be 229.5 feet.
None of these hills had apparently near so great an elevation as the sandstone range of which they were under-features.

At this period our barometer was unfortunately broken.

We now proceeded up the banks of the Glenelg and arrived at many hills and conical peaks, apparently much higher than those I had measured; yet on afterwards passing the river and attaining the summit of the opposite sandstone range, we looked down upon them as hills of far inferior elevation to those on which we stood.

From this circumstance, and from the very perceptible change of temperature we experienced, I should think the altitude of the farthest point of Stephen's Range which we reached must have been 2,500 or 3,000 feet above the sea.
CHARACTER OF THE RIVERS.
The rivers in North-western Australia much resemble in character those of the south-eastern parts of the continent.

They rise at no very great distance from the sea.