We passed the day in enlarging the tank, and were glad to find that, though no increase in the supply of water was observable, still there seemed no diminution, as now a horse could fill himself at one spell.

We took a stroll up into the rocks and gullies of the ridges, and found a Troglodytes' cave ornamented with the choicest specimens of aboriginal art.

The rude figures of snakes were the principal objects, but hands, and devices for shields were also conspicuous.

One hieroglyph was most striking; it consisted of two Roman numerals--a V and an I, placed together and representing the figure VI; they were both daubed over with spots, and were painted with red ochre.

Several large rock-holes were seen, but they had all long lain dry.