There was a similar group on another block of this interesting cliff, but too much effaced to allow the particulars to be distinguished; but the figure of an ass among the oxen was quite clear, as well as that of a horse, which was, however, ill-drawn. Not far off, Overweg found another sculptured stone, representing, as the annexed sketch shows, an ox jumping through or falling into a ring or hoop, which I should suppose to have an allegorical meaning, or to represent a sacrifice, rather than, as Mr. Richardson thought, to represent any games of the circus. There was a circle regularly laid with large blocks of rock, at the south-western slope of the cliff; these, I should suspect, belong to the same, period as the sculptures before mentioned.
To a later period belong innumerable inscriptions in Tefínagh, with which the cliffs on the other side of the valley and overhanging the waterpond are covered. These are mere scribblings, and are interesting merely as they serve to render evident, by contrast, the superior merit and age of the adjacent sculptures. It appeared to me remarkable that on this side, where the water now principally collects, not a single drawing should be seen; and I formed the conclusion that in more ancient times the water collected on the other side.
The valley is formed by the junction of two branches coming from the north, of which the western is the more considerable, being joined by some smaller wadys. Just at the place of our encampment it changed its direction, and extended from west to east, having run in its upper course from north-west to south-east. After the junction, the valley runs from north to south, and loses for a moment almost the character of a wady, while running over pebbly ground; but it soon becomes once more well-bordered and adorned with fine groups of talha-trees, and in some places exhibits a river-bed eight feet deep, and still wet. Near a shepherd’s cave there was a very luxuriant tree, under whose shade I lay down. Towards evening the pilgrim-caravan of Haj ʿAbd el Káder, which had delayed so long in the wady, arrived. The whole valley resounded with the cries of the men and their camels, who were all eagerly pressing towards the pond at the foot of the steep cliffs. Fortunately we had already laid in a supply of water, else we should not have been able to obtain any fit to drink.
July 7.—Owing to the camels having strayed to a great distance, we started at a late hour, still leaving the Tuarek chiefs behind, who wanted to settle some business with the Tawáti, and for this purpose had changed their dirty travelling-dress for showy caftans and bernúses. We ascended the higher level, and continued along it, crossing some small beds of watercourses overgrown with herbage, till, after a little more than four miles, we had to descend into a deep and wild ravine which led us to a vale. Having again ascended, we then came to the wide and regular valley called Erazar-n-Hágarné, bordered by steep cliffs from 150 to 200 feet high, and richly clothed with herbage. Following the windings of this large wady, which evidently has received its name from the circumstance that the Hogár or Hágara pasture their camels chiefly hereabouts, we reached the point where it is joined by the valley called Áman sémmedné, and encamped near a fine talha-tree in order to allow Hatíta to come up. This valley has its name from the cold water which at times descends from the plateau in floods, of which the deeply worn channel bears evident traces; it is joined at this place by an important branch valley and several smaller ravines.
When the heat of the sun began to decline, I took a walk through the valley, and being attracted by a circle laid out very regularly with large slabs like the opening of a well, I began to ascend the steep cliffs opposite the mouth of the valley of Áman sémmedné, rising to a height of about 500 feet, and which, as I clearly saw, had been repeatedly ascended. The cliffs are here, as is usual in this formation, broken into regular strata, and steep flat blocks standing upright give them an imposing appearance. My search here, however, led only to the discovery of the well-chiselled form of a single bullock, in exactly the same style as that in Wady Telísaghé, though it had suffered a little from its exposed situation; but the whole appearance of the locality shows that in former times it contained more of this kind. On the plain above the cliffs is another circle regularly laid out, and, like the many circles seen in Cyrenaica and in other parts of Northern Africa, evidently connected with the religious rites of the ancient inhabitants of these regions. Quartz pebbles were scattered about this part of the valley.
Our people meanwhile had been busy laying in provision of dry herbage for the next marches, during which we were told our camels would scarcely find anything to feed upon; and our Tuarek friends, when they at length arrived for their supper, did the same.
The caravan of the Tawáti having passed by our encampment at an early hour, we followed betimes, having an interesting day’s march before us. For the first three miles we still kept along the large valley, into which masses of sand had been driven down from the plateau by the strong east winds; further on it became dry and bare. To this succeeded an irregular knot of hollows and plains between the sides of the plateau, which in some places formed imposing promontories and detached buttresses, all on one and the same level. We then began to ascend along a sort of broad valley, which gradually assumed a regular shape, and bore the name of Tísi. The slope of the plateau was shaped into regular strata, the uppermost of which form steep precipices like the wall of a castle; the lower ones slope, down more gradually. Here we discovered ahead of us, at the foot of the southern slope, the encampment of the pilgrim-caravan, who were resting during the heat of the day. We continued our march, always ascending, till a little after noon we reached the edge of the pass, a perfect watershed, of more than 2,000 feet elevation, descending more gradually towards the east as far as the well of Sháraba, while towards the west is formed a steep precipice, passable only along a most interesting gully cut into it by the water towards the Valley of Ghát. The higher level, which rises above the pass about 300 feet, seems to be considerably depressed in this place, where it collects large floods of water, such as could alone cut the remarkably wild passage through the sandstone cliffs which we were about to descend: it is called Rálle.
The first part of it was more rough than wild, and the cliffs of the sandstone rather rugged and split than precipitous and grand; but after half an hour’s descent it bore evident traces of the waters that descend from the heights, and which being here collected into one mighty stream, with enormous power, force their way down through a narrow channel. The defile was here encompassed by rocky walls about a hundred feet high, half of which consisted of sandstone, while the other half was formed by a thick deposit of marl; and a little further down it was not more than six feet wide, and the floor and the walls were as smooth as if they had been cut by the hand of man; but the course of the defile was rather winding and not at all in a straight line, forming altogether a pass easily to be defended by a very small power, and affording the Tuarek a stronghold against any designs of conquest on the side of the Turks, although it does not form the frontier, but is regarded as entirely belonging to Fezzán. At the narrowest point Tuarek as well as Arab travellers had recorded their names.
Where the channel began to widen there were some curious narrow gaps or crevices on both sides, the one to the right, with its smooth rounded surface, bearing a great similarity to the famous Ear of Dionysius in Syracuse. The walls contained strata of chalk and ironstone, and Overweg found here some interesting petrifactions. The crevice to the left was less deep, and rather resembled a cell or chamber.
Having here waited some time for the boat to come up, we started together, but had still to get through two more narrow passes of the wady, and at four o’clock in the afternoon entered another very narrow defile, the steep cliffs forming it being covered with inscriptions. At length, after a descent of altogether four hours, we emerged into the open plain some 600 feet below, and had a wide view of the high precipitous cliffs of the plateau, stretching out in several buttresses into the plain, which is interrupted only by detached hills. Amongst these was a rather remarkable one upon a terrace-like base, and opening with three caverns towards the roadside. Ascending the terrace, I found the westernmost of the caverns vaulted, as if by art, in the shape of a large niche, but it was a little filled with sand; I found, however, no inscriptions nor anything but four round holes, about nine inches in diameter, hollowed out in a slab on the terrace in front of the cavern. Beyond this hill, where Hatíta told us that he had once passed the heat of the day with ʿAbd Allah (Clapperton) and the tabíb (Oudney), the country is quite open towards the north. About sunset we encamped in the deep Erazar-n-Tese; there were a few talha-trees and some herbage.