Mami-de-Yong apologized for the completion of his daily task in my presence, and went on with his instruction, while the pupils wrote down notes, on wooden slabs, with reeds and a fluid made of powder dissolved in water. I am sorry to say that these Ethiopian Mahometans are but poor scholars. Their entire instruction amounts to little more than the Koran, and when they happen to write or receive a letter, its interpretation is a matter over which many an hour is toilsomely spent. Mami-de-Yong, however, was superior to most of his countrymen; and, in fact, I must record him in my narrative as the most erudite Negro I ever encountered. HIS TRIP TO TIMBUCTOO. True to his promise, the envoy came to my piazza, as soon as school was over, and squatting sociably on our mats and sheepskins, with a plentiful supply of pipes and tobacco, we formed as pleasant a little party as was assembled that day on the banks of the Rio Pongo. Ali-Ninpha acted as interpreter, having prepared himself for the long-winded task by a preliminary dram from my private locker, out of sight of the noble Mahometan. Invoking the Lord's name,--as is usual among Mussulmen,--Mami-de-Yong took a long whiff at his pipe, and, receiving from his servant a small bag of fine sand, spread it smoothly on the floor, leaving the mass about a quarter of an inch in thickness. This was his black-board, designed to serve for the delineation of his journey. On the westernmost margin of his sand, he dotted a point with his finger for the starting at Timbo. As he proceeded with his track over Africa towards the grand capital, he marked the outlines of the principal territories, and spotted the remarkable towns through which he passed. By a thick or thin line, he denoted the large rivers and small streams that intercepted his path, while he heaved up the sand into heaps to represent a mountain, or smoothed it into perfect levels to imitate the broad prairies and savannas of the interior. When he came to a dense forest, his snuff-box was called in requisition, and a pinch or two judiciously sprinkled, stood for the monarchs of the wood. Like all Oriental story-tellers, Mami proved rather prolix. His tale was nearly as long as his travel. He insisted on describing his reception at every village. At each river he had his story of difficulty and danger in constructing rafts or building bridges. He counted the minutes he lost in awaiting the diminution of floods. Anon, he would catalogue the various fish with which a famous river teemed; and, when he got fairly into the woods, there was no end of adventures and hairbreadth escapes from alligators, elephants, anacondas, vipers, and the fatal tape snake, whose bite is certain death. In the mountains he encountered wolves, wild asses, hyaenas, zebras, and eagles.