Lieutenant Yusuf's two journals checking each other, his plan and his specimens enable me to describe the northern deposit with more or less accuracy. The Sulphur-hill is a long oval of four hundred metres (east-west), by a maximum of one hundred and eighty (north-south); but it extends branches in all directions: the mineral was also found in a rounded piton, a knob on the Wady Musayr, attached to the north-eastern side. The flattened dome is from fifty to sixty feet high, and the piton one hundred and forty. The metal underlying a dark crust, some twelve to fifteen centimetres thick, appears in regular crystals and amorphous fragments of pure brimstone pitting the chalky sulphate of lime: blasting was not required; the soft material yielded readily to the pick. This gypseous or Secondary formation was found to extend, not only over the adjacent hills, but everywhere along the road to Makná. The important point which now remains to be determined is, I repeat, whether sulphur-veins can be found diffused throughout these non-plutonic rocks. Lieutenant Yusuf fixed his position by climbing the adjacent hills, whence Sina'fir bore 190°, and Shu'shu' 150° (both magnetic); while greater elevations to the west shut out the view of lofty Ti'ra'n, and even of the Sinaitic range. The nearest water in the Wady el-Nakhil to the north-east was reported to be a two hours' march with loaded camels (= five miles) Several little ports, quite unknown to the Hydrographic Chart, were visited. These are, beginning from the north, the Mínat Hamdán, lying between Makná and Dabbah; a refuge for Sambúks defended, like that of old "Madyan," by rising ground to the north. About three miles and a quarter further south is the Sharm Dabbah, the "Sherm Dhaba, good anchorage" of the Chart: this mass of reefs and shoals may have been one of the "excellent harbours" mentioned by Procopius. It receives the Wady Sha'b el-Gánn (Jánn), "the Watercourse of the Demons' (Ja'nn) Ravine," flowing from a haunted hill of red stone, near which no Arab dares to sleep. From that point the travellers struck nine miles and a half to south-east of Ghubbat Suwayhil: this roadstead, used only by native craft, lies eastward of the long point forming the Arabian staple of the Gulf el-‘Akabah's gate, where the coast-line of Midian bends at a right angle towards the rising sun. Adjoining it to the east, and separated by a long thin spit, is the Ghubbat el-Wagab (Wajb), the mouth of the watercourse similarly named: it is also known to the Katírah or "smaller vessel," and about a mile up its bed, which comes from the north-east, there is a well. According to Jázi, the guide, this Ghubbah ("gulf"), distant only four to five hours of slow marching from the Sulphur-hill, will be the properest place for shipping produce. In another eastern feature, the Wady Giyál (Jiyál), distant some eleven miles and a half from ‘Aynúnah and ending in a kind of sink, there is a fine growth of palms, about