The Emporium of Eastern Africa has a salubrious climate [13], abundance of sweet water—a luxury to be "fully appreciated only after a residence at Aden" [14]—a mild monsoon, a fine open country, an excellent harbour, and a soil highly productive. It is the meeting-place of commerce, has few rivals, and with half the sums lavished in Arabia upon engineer follies of stone and lime, the environs might at this time have been covered with houses, gardens, and trees.
The Eye of Yemen, to quote Carlyle, is a "mountain of misery towering sheer up like a bleak Pisgah, with outlooks only into desolation, sand, salt water, and despair." The camp is in a "Devil's Punchbowl," stiflingly hot during nine months of the year, and subject to alternations of sandstorm and Simum, "without either seed, water, or trees," as Ibn Batutah described it 500 years ago, unproductive for want of rain,—not a sparrow can exist there, nor will a crow thrive, [15]—and essentially unhealthy. [16] Our loss in operatives is only equalled by our waste of rupees; and the general wish of Western India is, that the extinct sea of fire would, Vesuvius-like, once more convert this dismal cape into a living crater.
After a day's rest—physical not spiritual, for the Somal were as usual disputing violently about the Abbanship [17]—I went with my comrades to visit an interesting ruin near the town. On the way we were shown pits of coarse sulphur and alum mixed with sand; in the low lands senna and colocynth were growing wild. After walking a mile south-south-east, from present Berberah to a rise in the plain, we found the remains of a small building about eight yards square divided into two compartments. It is apparently a Mosque: one portion, the sole of which is raised, shows traces of the prayer niche; the other might have contained the tomb of some saint now obsolete, or might have been a fort to protect a neighbouring tank. The walls are of rubble masonry and mud, revetted with a coating of cement hard as stone, and mixed with small round pebbles. [18] Near it is a shallow reservoir of stone and lime, about five yards by ten, proved by the aqueduct, part of which still remains, to be a tank of supply. Removing the upper slabs, we found the interior lined with a deposit of sulphate of lime and choked with fine drift sand; the breadth is about fifteen inches and the depth nine. After following it fifty yards toward the hills, we lost the trace; the loose stones had probably been removed for graves, and the soil may have buried the firmer portion.
Mounting our mules we then rode in a south-south-east direction towards the Dubar Hills, The surface of the ground, apparently level, rises about 100 feet per mile. In most parts a soft sand overlying hard loam, like work en pise, limestone and coralline; it shows evidences of inundation: water-worn stones of a lime almost as compact as marble, pieces of quartz, selenite, basalt, granite, and syenite in nodules are everywhere sprinkled over the surface. [19] Here and there torrents from the hills had cut channels five or six feet below the level, and a thicker vegetation denoted the lines of bed. The growth of wild plants, scanty near the coast, became more luxuriant as we approached the hills; the Arman Acacia flourished, the Kulan tree grew in clumps, and the Tamarisk formed here and there a dense thicket. Except a few shy antelope, [20] we saw no game.
A ride of seven or eight miles led us to the dry bed of a watercourse overgrown with bright green rushes, and known to the people as Dubar Wena, or Great Dubar. This strip of ground, about half a mile long, collects the drainage of the hills above it: numerous Las or Pits, in the centre of the bed, four or five feet deep, abundantly supply the flocks and herds. Although the surface of the ground, where dry, was white with impure nitre, the water tasted tolerably sweet. Advancing half a mile over the southern shoulder of a coarse and shelly mass of limestone, we found the other rushy swamp, called Dubar Yirr or Little Dubar. A spring of warm and bitter water flowed from the hill over the surface to a distance of 400 or 500 yards, where it was absorbed by the soil. The temperature of the sources immediately under the hill was 106° Fahr., the thermometer standing at 80° in the air, and the aneroid gave an altitude of 728 feet above the sea.
The rocks behind these springs were covered with ruins of mosques and houses. We visited a little tower commanding the source; it was built in steps, the hill being cut away to form the two lower rooms, and the second story showed three compartments. The material was rubble and the form resembled Galla buildings; we found, however, fine mortar mixed with coarse gravel, bits of glass bottles and blue glazed pottery, articles now unknown to this part of Africa. On the summit of the highest peak our guides pointed out remains of another fort similar to the old Turkish watchtowers at Aden.
About three quarters of a mile from the Little Dubar, we found the head of the Berberah Aqueduct. Thrown across a watercourse apparently of low level, it is here more substantially built than near the beach, and probably served as a force pipe until the water found a fall. We traced the line to a distance of ten yards, where it disappeared beneath the soil, and saw nothing resembling a supply-tank except an irregularly shaped natural pool. [21]
A few days afterwards, accompanied by Lieut. Herne, I rode out to inspect the Biyu Gora or Night-running Water. After advancing about ten miles in a south-east direction from Berberah, we entered rough and broken ground, and suddenly came upon a Fiumara about 250 yards broad. The banks were fringed with Brab and Tamarisk, the Daum palm and green rushes: a clear sparkling and shallow stream bisected the sandy bed, and smaller branches wandered over the surface. This river, the main drain of the Ghauts and Sub-Ghauts, derives its name from the increased volume of the waters during night: evaporation by day causes the absorption of about a hundred yards. We found its temperature 73° Fahr. (in the air 78°), and our people dug holes in the sand instead of drinking from the stream, a proof that they feared leeches. [22] The taste of the water was bitter and nauseous. [23]
Following the course of the Biyu Gora through two low parallel ranges of conglomerate, we entered a narrow gorge, in which lime and sandstone abound. The dip of the strata is about 45° west, the strike north and south. Water springs from under every stone, drops copiously from the shelves of rock, oozes out of the sand, and bubbles up from the mould. The temperature is exceedingly variable: in some places the water is icy cold, in others, the thermometer shows 68° Fahr., in others, 101°—the maximum, when we visited it, being 126°. The colours are equally diverse. Here, the polished surface of the sandstone is covered with a hoar of salt and nitre. [24] There, where the stream does not flow, are pools dyed greenish-black or rust-red by iron sediment. The gorge's sides are a vivid red: a peculiar creeper hangs from the rocks, and water trickles down its metallic leaves. The upper cliffs are crowned with tufts of the dragon's-blood tree.
Leaving our mules with an attendant, we began to climb the rough and rocky gorge which, as the breadth diminishes, becomes exceedingly picturesque. In one part, the side of a limestone hill hundreds of feet in height, has slipped into the chasm, half filling it with gigantic boulders: through these the noisy stream whirls, now falling in small cascades, then gliding over slabs of sheet rock: here it cuts grooved channels and deep basins clean and sharp as artificial baths in the sandstone, there it flows quietly down a bed of pure sparkling sand. The high hills above are of a tawny yellow: the huge boulders, grisly white, bear upon their summits the drift wood of the last year's inundation. During the monsoon, when a furious torrent sweeps down from the Wagar Hills, this chasm must afford a curiously wild spectacle.