[p.62] ground, in valleys, with an ascent almost imperceptible to the traveller, and the existence of which became visible only in viewing the country from the summit of the mountains now before us. The lower hills are seldom higher than four or five hundred feet. The lowest range above Djidda is calcareous; but its rocks soon change into gneiss, and a species of granite, with schorl in the place of feldspath, accompanied by predominant masses of quartz, and some mica. This rock continues along the road, with few variations, as far as the vicinity of Djebel Nour, to the eastward of Mekka, where granite begins. I learned at Mekka, that, south of Hadda, some hours distant, a mountain yields fine marble, which served for the pavement of the great mosque. The mountains forming the valley of Muna are composed of this red and grey granite, and continue so from thence to this higher chain, mixed in a few places with strata of grunstein. The lower chain of the high ridge which we were now ascending, again, consists of grey granite; towards the middle I found it of all colours, mixed with strata of grunstein, trappe, and porphyry schistus, the latter much decayed: at the summit of the ridge, red granite occurred again; its surface had been completely blackened by the sun’s rays. We ascended by a road, still bad, although Mohammed Ali Pasha had recently caused it to be repaired. The country around was very wild, being covered with large blocks of loose stones, carried down by the winter torrents, and interspersed with a few acacia and nebek trees. At one hour we came to a building of loose stones, called Kaber Er’-rafyk, i.e. the Companion’s tomb. The following tradition concerning it was related by my guide. In the last century, a Bedouin returning from the Hadj was joined, beyond the gates of Mekka, by a traveller going the same road with himself; they reached this spot in company, when one of them felt himself so ill, that he was unable to proceed farther, and on the following day the small-pox broke out on his body. In this situation his companion [p.63] would not abandon him. He built two huts with boughs of acacia- trees, one for his friend, the other for himself; and continued to nurse him, and solicit alms for his benefit from passing travellers, until he recovered. But in turn, he himself became ill of the same disease, and was nursed by his convalescent companion with equal kindness, though not with equal success; for he died, and was interred by his friend on this spot, where his tomb serves as a monument of Bedouin generosity, and inculcates benevolence even towards the casual companions of the road.