I had heard by mere chance of a "White Mountain," at no great distance, in the mass of hills bounding to the north the Secondary formations of Magháir Shu'ayb. On January 21st, M. Marie and Lieutenant Amir were detached to inspect it. They were guided by the active Furayj and a Bedawi lad, Hamdán of the Amírát, who on receiving a "stone dollar" (i.e. silver) could not understand its use. Travelling in a general northern direction, the little party reached their destination in about three hours (= nine miles). They found some difficulty in threading a mile and a quarter of very ugly road, a Nakb, passing through rocks glittering with mica; a ladder of stony steps and overfalls, with angles and zigzags where camels can carry only half-loads. The European dismounted; the Egyptian, who was firm in the saddle, rode his mule the whole way. We afterwards, however, explored a comparatively good road, viâ the Wady Murákh, to the seaboard, which will spare the future metal-smelter much trouble and expense. The quartz mountain is, like almost all the others, the expanded mushroom-like head of a huge filon or vein; and minor filets thread all the neighbouring heights. The latter are the foot-hills of the great Jebel Zánah, a towering, dark, and dome-shaped mass clearly visible from Magháir Shu'ayb. This remarkable block appeared to me the tallest we had hitherto seen; it is probably the "Tayyibat Ism, 6000," of the Hydrographic Chart. The travellers ascended the Jebel el-Marú, trembling the while with cold; and from its summit, some fifteen hundred feet above sea-level, they had a grand view of the seaboard and the sea. They brought home specimens of the rock, and fondly fancied that they had struck gold: it was again that abominable "crow-gold" (pyrites), which has played the unwary traveller so many a foul practical joke.