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 something much more terrible than these fiery columns,—the simoom, which almost invariably ensued upon such a disposition of the atmosphere. This information greatly increased the apprehensions of the traveller; but he entreated the man to conceal his suspicions from their companions.

In the forenoon of the next day, being in sight of the rock of Chiggre, where they expected to refresh themselves with plenty of excellent water, and were therefore in high spirits, the guide cried out with a loud voice, "Fall upon your faces, for here is the simoom!" Bruce looked, he says, towards the south-*east, and saw "a haze come in colour like the purple part of the rainbow, but not so compressed or thick. It did not occupy twenty yards in breadth, and was about twelve feet high from the ground. It was a kind of blush upon the air, and it moved very rapidly; for I scarce could turn to fall upon the ground with my head to the northward, when I felt the heat of its current plainly upon my face. We all lay flat on the ground, as if dead, till Idris (the guide) told us it was blown over. The meteor, or purple haze, which I saw, was indeed passed, but the light air that still blew, was of a heat to threaten suffocation. For my part, I found distinctly in my breast that I had imbibed a part of it; nor was I free of an asthmatic sensation till I had been some months in Italy, at the baths of Poretta, near two years afterward."

The effect of this state of the atmosphere upon his companions was sudden and extraordinary. They were all seized with an unusual despondency, ceased to speak to each other, or if they spoke it was in whispers; from which Bruce conjectured, perhaps without reason, that some plot was forming against him. He therefore called them together, reprimanded them for their fears, exhorted them to take courage, reminded them, that whatever might be their sufferings, his own were not less than theirs;