There is a fine blue, very hard stone, with slender white lime streaks, forming the surface of many of the lower grounds, evidently of recent formation. A similar formation is seen in the large sterile plain between the hills of Fezzan to the westward, and the Tuarick range: the fine white sandstone is found deep in the same hills; the aluminous slate in abundance. The kind of sandstone, the other rocks and similarity of appearance, show a sameness of geological structure as far as we have gone.
From a fine pass between two of the hills, the view from above had something of the grand. A rocky and sandy space, about two hundred yards broad, bounded on each side by a high rugged black hill, below a fine level plain, with low hills in the distance. The descent of the camels fine, and accomplished without an accident.
| a | sandstone. |
| b | red and yellow iron ore, in very thick beds. |
| c | sandstone. |
| d | white shistus. |
| e | white sandstone. |
The surface of the plain has strata of a slatiform blue stone; frequently, however, massive, and so hard as not to be scratched by iron; imbedded in it is a large quantity of periform iron ore. After traversing this plain, we ascended a low hilly range, and passed across its stony surface. From here we saw El-Wahr, or Difficult: it is between two high hills. We passed many skeletons, both of human beings and camels, which always kept us in mind of the dangers we were exposed to.—W. O.
[11]El-Wahr. The surface sandy till we approached the hills, then it changed to stony. The black hills with cones, peaks, and a columnar-looking cap, reminded us of what we had seen before. The gloom of these places in the dusk has something grand and awful. We winded up, with the light of a moon not a quarter old, and that lessened by a cloudy sky. Some sandy and pebbly beds, as of a stream, and in one place high clayey banks, with iron ore underneath. Skeletons lay about, mangled in a shocking manner; here a leg, there an arm, fixed with their ligaments, at considerable distances from the trunk. What could have done this? Man forced by hunger, or the camels? The latter are very fond of chewing dried bones, but whether they ever do so to those with dried flesh on them, I cannot say.—W. O.
[12]Several of our camels are drunk to-day: their eyes are heavy, and want animation; gait staggering, and every now and then, falling as a man in a state of intoxication. It arose from eating dates after drinking water; these probably pass into the spirituous fermentation in the stomach.—W. O.
[13]Our road by the side of detached hills, and several small chains, having rocky and sandy windings among them. The detached hills were mostly conical, with fine columnar tops, as if capped with basalt,—all, however, was of sandstone. The sombre appearance and solitariness of the situations, the form of the hills, and the dreariness of nature around, gave a gloomy cast to every object, which the beauty and life of a large kafila could not eradicate.—W. O.
[14]The Tibboos were positive as to this distance, which we could scarcely credit; they must mean, however, Tuarick days, or a maherhy, equal to forty miles at least.
[15]We passed two salt water lakes at a short distance on the west, which add much to the beauty of the scenery. There is something to-day quite cheering: large groves of palm trees, many beautiful acacias both in flower and fruit, and two fine, small salt lakes. The lakes are about two miles in circumference, have salt islands, and marshy borders: no salt, I believe, is taken from them. They are the abodes of a beautiful bird of the plover species.—W. O.