The castle is evidently European, built during the days when the Crusaders held El-'Akabah; but it probably rests upon Roman ruins; and the latter, perhaps, upon Egyptian remains of far older date. It protected one section of the oldest overland route, when the islet formed the key of the Gulf-head. It subsequently became an eyrie whence its robber knights and barons--including possibly "John, the Christian ruler of 'Akabah" (A.D. 630), and, long after him, madcap Rainald de Chatillon (A.D. 1182)--could live comfortably and sally out to plunder merchants and pilgrims. The Saracenic buildings may date, as the popular superstition has it, from the reign of Saláh el-Dín (Saladin) who, in A.D. 1167, cleared his country of the Infidel invader by carrying ships on camel-back from Cairo. Later generations of thieves, pirates, and fishermen naturally made it their refuge and abode. I hardly anticipate for it great things in the immediate future, although it has been proposed for a coal-depôt. After a day given to tube-tinkering with tompions, stays, plugs, plates, and wedges, to the distraction of the ship's carpenter and blacksmith, steam was coaxed up; and, at 9.15 a.m. (February 7th), we ran northwards through the deep narrow channel, rounding the upper end of the Pharaohnic islet. Here the encircling wall is defended by two square Burj, to the north-east and to the northwest, flanking what is probably the main entrance. On the Sinaitic mainland to port, the broad mouth of the Wady el-Masri leads to the Nakb, the rocky Pass which, so much dreaded till repaired by Abba's Pasha, is popularly said to be described in El-'Akabah--"the Steep." The Bedawin, however, declare that the locale is so called because the Gulf here "heels" (Ya'kkab el-Bahr), that is, comes to an end. At the head of the sea, the confused mass of the Sinaitic mountains range themselves in line to the west, fronting its sister wall, the grand block El-Shará' (Seir); while in the middle lies the southern section of the "Ghor," the noble and memorious Wady el-'Akabah, supposed to have given a name to Arabia.[EN#126] The surface-water still rolls down it after rains; and the mirage veiling the valley-sole prolongs the Gulf-waters far to the north, their bed in the old geologic ages. The view was charming to us; for the first time since leaving Suez we saw the contrast of perpendicular and horizontal, of height and flat. Nothing could be more refreshing, more gladdening to the eye, after niente che montagne, as the poor Italian described the Morea, than the soft sweeps and the level lines of the hollow plain: it was enjoyable as a heavy shower after an Egyptian summer. On the next day also, the play of light and shade, and the hide and seek of sun-ray and water-cloud, gave the view a cachet of its own. I am sorry to see that scientific geologist, Mr. John Milne, F.G.S.,[EN#127] proposing to cut through the two to five hundred feet of