He never walked, but to prayers, and two or three horses were always kept ready saddled near his tent.

The Moors set a high value upon their horses, as their fleetness enables them to plunder the negro countries.
On the same afternoon, a whirlwind passed through the camp, with such violence, that it overturned three tents, and blew down one side of the hut in which Mr.Park was.

These whirlwinds come from the Great Desert, and at that season of the year are so common, that Mr.Park has seen five or six of them at one time.

They carry up quantities of sand to an amazing height, which resemble at a distance so many moving pillars of smoke.
The scorching heat of the sun, upon a dry and sandy country, now made the air insufferably hot.

Ali having robbed Mr.Park of his thermometer, he had no means of forming a comparative judgment; but in the middle of the day, when the beams of the vertical sun are seconded by the scorching wind from the desert, the ground is frequently heated to such a degree, as not to be borne by the naked foot; even the negro slaves will not run from one tent to another without their sandals.