"Tayyib, tayyib," he ejaculated, when thoroughly satisfied that Cape Aden was not again in the hands of the Arabs. "Marhabba, it is well. All, too, is as it should be at Tajura. Misunderstandings are adjusted, and the avaricious chieftains have at last, the Lord be praised! got all the dirt out of their bellies. Their palms have been judiciously tickled, and it only now remains to be seen whether the old sultan, who is fully as fond of money as his neighbours--or his ancient rival, Mohammad Ali, is to have the honour of forwarding the English to King Saloo. My boy has just returned from Habesh, and shall escort you. Abroo has been twice in Bombay, as you know, Capitan. You have only to tell me if he should misbehave, and I'll trounce the young scamp soundly." Meanwhile the bold mountain outline of the land of promise, forming a worthy barrier to the unexplored treasures of the vast continent of Africa, had been rapidly emerging from obscurity, and the brown forbidding bluff, styled Ras Dukhan, "the smoking promontory," in height about five or six hundred feet, was now on the starboard quarter; its abrupt summit, as usual, surmounted by a coronet of fleecy clouds, from which, if not from the thermal well at its base, this Cape has probably derived its appellation. The brig was already standing up the bay of Tajura; but darkness overtaking her, it was resolved to lay to until daybreak; and a gun fired in intimation of approach was presently answered by a display of rockets and blue lights from the Honourable Company's schooner "Constance," riding at anchor in the harbour. The Arabs lay claim to the invention of the compass; and Aboo Bekr, who believed himself in truth a second Anson, was provided with one, which must certainly have been the first ever constructed. Age having impaired the dilapidated needle, it was forced off its pivot by a quantity of pepper-corns, which are here considered highly efficacious in the restoration of decayed magnetic powers. From the native navigators in the Indian Ocean he had borrowed a primitive nautical instrument for determining the latitude; nor was he a little vain of his practical skill as an observer. Through a perforation in the centre of a plane of wood in size and shape like a playing card, was passed a knotted whipcord, and the distance from each knot was so regulated that the subtended angle should equal the altitude of the polar star at some frequented point on the coast. The knot having been placed between the teeth, and the lower margin of the plane brought in optical contact with the horizon, the position of Polaris must be observed with reference to the upper edge; when, if it be above, the desired haven is known to be to the southward--if below, to the northward, and the course is shaped accordingly.