The same phenomenon has been observed in other countries.

Quintus Curtius says that in the deserts of Sogdiana, a fog rising from the earth obscures the light, and the surrounding country seems like a vast sea.

The cause of this singular illusion is now fully explained; and, from the observations of the learned Monge, it appears that the mirage will be found in almost every country situated between the tropics where the local circumstances are similar.
The Arabs harassed the army without intermission.

The few wells met with in the desert were either filled up or the water was rendered unfit for use.

The intolerable thirst with which the troops were tormented, even on this first march, was but ill allayed by brackish and unwholesome water.