The following morning the poor horses looked wretched in the extreme; to remain long in such a region without water is very severe upon them; it is a wonder they are able to carry us so well.

From this desert camp our depot bore north 40 degrees east.

The horses were so exhausted that, though we started early enough, it was late in the afternoon when we had accomplished the twenty-nine or thirty miles that brought us at last to the tarn.
Altogether they had travelled 120 miles without a drink.

The water in the tarn had evidently shrunk.

The day was warm--thermometer 92 degrees in shadiest place at the depot.