Burckhardt reached Yambo (the port of Medina), at the end of April, and, after running great danger from the plague, succeeded in obtaining passage to the Peninsula of Sinai, whence he slowly made his way back to Cairo. Here he waited for two years, vainly hoping for the departure of a caravan for Central Africa, and meanwhile assisting Belzoni in his explorations at Thebes. In October, 1817, he died, and the people who knew him only as Shekh Abdallah, laid his body in the Moslem burying-ground, on the eastern side of Cairo. CHAPTER V. WELLSTED’S EXPLORATIONS IN OMAN. PERHAPS the most satisfactory account of the interior of Oman—the southeastern portion of Arabia—has been given by Lieutenant Wellsted. While in the Indian Navy he was employed for several years in surveying the southern and eastern coasts of Arabia. Having become somewhat familiar with the language and habits of the people, he conceived the idea of undertaking a journey to Derreyeh, in Nedjed, the capital of the Wahabees, which no traveller had then reached. The governor of Bombay gave him the necessary leave of absence, and he landed at Muscat in November, 1835. The Sultan, Sayid Saeed, received the young Englishman with great kindness, promised him all possible aid in his undertaking, and even arranged for him the route to be travelled. He was to sail first to the port of Sur, south of Muscat, thence penetrate to the country inhabited by the Beni-Abu-Ali tribe, and make his way northward to the Jebel Akhdar, or Green Mountains, which were described to him as lofty, fruitful, and populous. Having thus visited the most interesting portions of Oman, he was then to be at liberty, if the way was open, to take the northern route through the Desert toward Nedjed. The Sultan presented him with a horse and sword, together with letters to the governors of the districts through which he should pass.