Philippeville offers to the traveller no great attractions. Its situation is pretty, and it possesses some Roman remains, the examination of which may occupy pleasantly and profitably enough the unavoidable interval between the landing and the start for the South. After resting but one night, we set out for Constantine, the capital of the province of that name. There is nothing whatever of interest between the sea and the city--nothing till you arrive within sight of Constantine itself. Then, indeed, when from the plain below you get your first view of the town, perched like an eagle's nest upon its rocky height, you can at once realize the appropriateness of its singular name--"the City in the Air." It is so high above you it seems midway between earth and heaven. Its situation is indeed unique and most strangely picturesque. Security must have been the chief motive for the selection of such a site, and certainly few cities present more formidable barriers to the advance of a foe. The plateau of rock upon which the town is built forms a kind of peninsula, inaccessible on all sides except one, and there the ascent is long and steep, as we found to our cost each time we descended to the level of the valley. This plateau is joined to the rest of the table-land as by an isthmus: at all other points it is surrounded by a profound chasm, through which flows the river Roumel--a chasm so deep and narrow that it is only when quite near it you become aware of its existence. For the sake of internal safety a wall has been built round the top of the precipice, and at certain points you may look over this parapet, sheer down some ten or twelve hundred feet, into an abyss fit only to be the habitation of the owls, bats, and birds of prey which frequent its solitudes. There seems no resting-place for any wingless creature: thus the strange birds which haunt the wild recesses of the rocks do so in perfect security, and their varied cries, along with the roar of the water, are the 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.