only sounds that issue from below. The mysterious gloom is indescribable, and the look down into the depths fills one with awe; and yet this singular view is obtained from the very town itself, from the courts and windows of the houses.

If, however, you would see this wonderful gorge to perfection, you must go down into it and find your way to the little path which skirts the stream along a portion of its course. First, descend to the foot of the rock, where the river rushes out of the ravine with a mighty leap, forming a cascade some four hundred feet in height, and you are at once overwhelmed by the grandeur of the scene, and all the poetry in your nature is stirred. From this point you may proceed for some distance along the water-side above the fall. Below you roars the foaming cataract, thundering downward and filling the whole air with its white spray. Above, on either side, are lofty, precipitous rocks, the crests of which are crowned by buildings. This is the town as seen from beneath. No wonder it is called "the City in the Air."

As you advance the chasm narrows. You must walk with caution, stepping lightly from rock to rock, till presently you come in sight of a lofty arch, which, spanning the river from side to side, forms a gigantic natural bridge joining the opposite sides of the gorge. Nothing in Nature ever moved me more than the first view of that magnificent arch. With something of the proportions of a cathedral roof it rises above you in massive grandeur, showing beyond, through the opening, a line of sky, and then another cavern-like arch. We could not penetrate farther, and no daylight issued from this second opening. It looked like the mysterious entrance into an underground world, the portal of Hades, and in the excitement produced by the novelty of the scene our surprise could scarcely have been increased had some of the shades from the realms of darkness glided out from amid the gloom, or if Charon's boat had appeared to row us over the ferry. Overhead the hawks and eagles circled round, and with hoarse cries appeared to express their anger at the intrusion of man into these wilds sacred to them. Altogether, the scene is full of strange, awe-inspiring beauty. In the Alps and elsewhere we have, perhaps, beheld grander scenery, but never more impressive.

The town of Constantine has not much to commend it as a place of residence. It is neither clean nor well built, while sights and smells the reverse of agreeable are constantly distressing the optic and olfactory nerves. And yet there are perhaps few places where an artist could find more charming subjects for his pencil—curious bits of architecture mingling with Nature in its most beautiful and grandest aspects, fine touches of brilliant color, and quaint winding streets and bazaars,—everywhere the picturesque. Filth and confusion, indeed, but still it is the very confusion that an artist loves.

The people are a mixture of French, Arabs and Jews. Of the first nothing need be said: they are the same everywhere. The second are similar in type to the Arabs and Moors of the capital; but the last, the Jews, do not at all resemble the specimens of the favored race we have been accustomed to meet with in Europe. They are mostly handsome, many of them fair, the women being particularly gay and picturesque in costume, wearing, when in gala-dress, bright-colored, gold-bespangled scarfs hanging over their heads and shoulders. Altogether, we thought it the brightest and most graceful female attire we had ever seen. But the most charming of all are the children. We saw groups of a perfectly ideal beauty playing upon the doorsteps and dust-heaps—little rosy-cheeked, fair or auburn-haired things, a striking contrast to the sallow Arab races. In thus seeing that fair and auburn hair is not at all uncommon among the Jews of the East, we for the first time understood why the old masters gave to Christ the complexion generally found in their paintings. Certainly, the Jewish children of Constantine would make most lovely studies for the genre painter, and we all regretted that we could not carry away with us some enduring souvenir of that which had charmed us so much.

But, however picturesque the country, and however interesting the town and people, we cannot always linger here. Our destination is the desert. Thus, therefore, after a few days spent in alternate wonder and admiration, we once again set out on our southward course, resolved to indemnify ourselves on our return journey by making a longer stay amidst the beautiful and extremely singular scenery of the Roumel.

Our next resting-place was Batna, a small French town situated on the elevated ground—nearly four thousand feet above the level of the sea—between the Mediterranean and the Sahara. We had to make the journey thither by diligence and by night, and we were surprised to find how cold an African night can be even in April. There was a hard frost, and just before entering Batna we passed under an aqueduct from which hung down a fringe of enormous icicles. The following day, on the still higher ground at the celebrated cedar forest, which forms an interesting excursion from Batna, we found deep snow. During the day the sun shone out bright and powerful, but the nights continued to hold the forest frost-bound.

At Batna we met with a party of gentlemen, one of whom we had known slightly in Algiers; and they, like ourselves, were bound for Biskra. This complicated matters, as it was understood that the accommodation at the oasis was of a somewhat scanty description. They were three, and we were four—altogether, a party of six gentlemen and one lady. We telegraphed from Batna to ascertain whether or not we could all get rooms. Our despair may be imagined when we received the answer: one of the little hotels was closed, and the other could only offer us two rooms. Two rooms for seven people! What was to be done? We could not—or rather would not—retrace our steps at this stage, and thus give up the very object of our journey; so we resolved to go on at all risks and take our chance.

The evening before we started on our somewhat adventurous journey, as we sat chatting round the fire, I could not help giving vent to my feelings. The desert! Was it possible? I felt myself on the eve of something momentous. It was an event in my life, a something never to be forgotten. A smile played upon the faces of my companions, and next day, when, utterly worn and weary, I could with difficulty take an interest in anything around me, they were very ready to banter me about "the event in my life."

It was not without serious misgivings that we took our places in the great lumbering vehicle which travels twice a week between Batna and the oasis. Nothing but a heavy, strongly-built conveyance could stand the jolting of such a journey; and in order to accomplish it at all within the day it is necessary to start between two and three o'clock in the morning. Now, if there is one thing more than another likely to damp one's enthusiasm, it is turning out at such an untimely hour. We all felt this as we wended our way through the cold, dark streets to the diligence-office; and as we were trundled down the steep hill leading out of the town, bumping from side to side, it was some time before we could recover our spirits or stir up again an excitement worthy of the occasion.

On the route between Batna and El Kantra—"the Mouth of the Desert"—there is little of interest. It is a weary journey, over roads either badly made or not made at all, through a bare, barren, bleak, uncultivated country. One wonders, in passing through such an inhospitable region, at finding so many remains of the Roman occupation. What could have induced such a people to penetrate so far into the wilds of Africa? There is no evidence of the land ever having been more productive or more attractive than it is at present; and yet at Lambessa, a few miles from Batna, you find