Two years ago I was travelling by diligence in the Sahara Desert on the great caravan route, which starts from Beni-Mora and ends, they say, at Tombouctou. For fourteen hours each day we were on the road, and each evening about nine o'clock we stopped at a Bordj, or Travellers' House, ate a hasty meal, threw ourselves down on our gaudy Arab rugs, and slept heavily till the hour before dawn, drugged by fatigue, and by the strong air of the desert. In the late afternoon of the third day of our journeying we drove into a sandstorm. A great wind arose, carrying with it innumerable multitudes of sand grains, which whirled about the diligence and the struggling horses, blotting out the desert as completely as a London fog blots out the street on a November day. The cold became intense, and very soon I began to long for the next halting-place.
