At length we were under way, and began gradually to ascend along the strip of green which followed the shelving of the plateau into the valley, leaving the Roman sepulchre at some distance to our right. The flat Wadi Lebaerek, which is joined by Wadi Shák, was still adorned with gattúf and rétem. It was not till we had passed the little hill called Lebaerek, and made another slight ascent, that we reached the real level of the terrible Hammáda; the ascent, or shelving ground, from Taboníye to this point being called el Mudhár mtʿa el Hammáda, and the spot itself, where the real Hammáda begins, Bú-safár, a name arising from the obligation which every pilgrim coming from the north, who has not before traversed this dreaded district, lies under, to add a stone to the heaps accumulated by former travellers. But, notwithstanding all the importance attached to the dreary character of this region, I found it far less naked and bare than I had imagined it to be. To the right of our path lay a small green hollow, of cheerful appearance, a branch of which is said, probably with some degree of exaggeration, to extend as far as Ghadámes; but the whole extent of the Hammáda is occasionally enlivened with small green patches of herbage, to the great relief of the camel. And this, too, is the reason why the traveller does not advance at a rate nearly so expeditious as he would expect. In the latter part of our preceding journey we generally had made almost as much as two and a half miles an hour; but we scarcely got over two on this level open ground. Of course, the wider the space the wider the dispersion of the straggling camels; and much time is lost by unsteady direction. At the verdant hollow called Garra mtʿa e’ Nejm the eastern path, which is called Trík el mugítha (_via auxiliaris_), and passes by the village of Gharíya, joined our path. At Wadi Mʿamúra I first observed the little green bird generally called asfír, but sometimes mesísa, which lives entirely upon the caravans as they pass along, by picking off the vermin from the feet of the camels. In the afternoon we observed, to our great delight, in the green patch called el Wueshkeh, a cluster of stunted palm-trees. Hereabouts the camel-drivers killed a considerable number of the venomous lizard called bu-keshásh; and the Tarki in particular was resolute in not allowing any which he saw to escape alive. After a moderate march of little more than ten hours and a half, we encamped in a small hollow called, from a peculiar kind of green bush growing in it, el Jederíya. A strong cold wind, accompanied by rain, began to blow soon after we encamped. The tent, not being sufficiently secured, was blown down in the night; and we had some trouble in pitching it again.