We started with the rising sun and continued till four o'clock P.M. A strong S. and S.E. wind blew all day, and very cold, parching my lips and mouth. This wind would have a veritable burning simoon in the summer! We traversed all day the plateau, now become an immeasurable plain. It slightly undulates in parts, but I think we continued to ascend. Some of the surface is wholly naked, having neither herbage or stones scattered about, being of a softish clayey soil, and printed in little diamond squares, like the dry bottom of a small lake on the sea-shore. This, I doubt not, is the action of the rain, which falls at long intervals. Other parts presented the usual black calcined stones, and sometimes pieces of the common limestone and pebbles, but not very round. The track was in some places well-defined, in others the earth so hard as not to admit of the impression of the camel's foot. Passed by several tumuli of stones, said by the people to mark the route, and called _âlam_--‮علم‬--directors. Passed also a conspicuous tomb of some distinguished individual, who had died in the open Desert. There was no writing or ornament, only a higher heap of stones, and piled in the shape of an oblong square. As soon as a traveller dies he is buried, if he have companions; the body is never brought to the neighbouring oases. My friend Haj-el-Besheer, to my regret, has disappeared with the Touarick. Nothing possibly could be more horrible and dreary, exhibiting the very "palpable obscure," than our course of to-day. As far as the eye can stretch on every side is one vast, solitary, lifeless, treeless expanse of desert earth! It is a-- "Dreary [plain] forlorn and wild, The seat of desolation."