Having remained three days in our encampment on the outside of Medina to rest and refresh ourselves and our animals, and being satisfied, or disgusted rather, by the vile and abominable trumperies, deceits, and hypocritical trifles of the Mahometan delusions, we determined to resume our journey; and procuring a pilot or guide, who might direct our way by means of a chart and mariners box or compass, as is used at sea, we bent our journey towards the west, where we found a fair well or fountain whence flowed an abundant stream of water, and where we and our beasts were satisfied with drink. According to a tradition among the inhabitants, this region was formerly burnt up with drought and sterility, till the evangelist St Mark procured this fountain from God by miracle. We came into the _sea of sand_ before our arrival at the mountain of the Jews, formerly mentioned, and in it we journeyed three days and nights. This is a vast plain covered all over by white sand as fine almost as flour; and if by evil chance any one travels south while the wind blows to the north, they are overwhelmed by drifted sand. Even with the wind favourable, or blowing in the direction of their journey, the pilgrims are apt to scatter and disperse, as they cannot see each other at ten paces distance. For this reason those who travel across the sea of sand are enclosed in wooden cages on the backs of camels, and are guided by experienced pilots by chart and compass, as mariners on the ocean. In this journey many perish by thirst, and many by drinking with too much avidity when they fall in with wells. Owing to this _Momia_ is found in these sands, bring the flesh of such as have been _drowned in the sea of sand_, which is there dried up by the heat of the sun, and the excessive dryness of the sand preventing putrefaction. This _Momia_ or dried flesh is esteemed medicinal; but there is another and more precious kind of _Momia_, being the dried and embalmed bodies of kings and princes, which have been preserved in all times from corrupting. When the wind blows from the north-east, the sand rises, and is driven against a certain mountain, which is a branch from Mount Sinai; and in that place we found certain pillars artificially wrought, which are called _Januan_. On the left hand side of that mountain, and near the highest summit, there is a cave or den, to which you enter by an iron gate, and into which cave Mahomet is said to have retired for meditation. While passing that mountain, we heard certain horrible cries and loud noises, which put us in great fear. Departing therefore from the fountain of St Mark, we continued our journey for ten days, and twice in that time we had to fight against fifty thousand Arabians. At length, however, we arrived at Mecca, where we found every thing in confusion, in consequence of a civil war between two brothers who contended for the kingdom of Mecca. SECTION IV. _Observations of the Author during his residence at Mecca_.