_13th._--We rose early, but did not start till about nine o'clock. This was the coldest day we have yet experienced: the heavens were overcast with clouds. We came five hours; our course irregular, but always south-east; the track through wadys filled with the usual trees of the tholukh species. Yesterday were seen numbers of large butterflies, but to-day, on account of the cold, few. Flies innumerable follow the caravan. The rocks were, as yesterday, many conic-formed, and others rounded or appearing in ranges, like huge haycocks: granite, sandstone, and trachite. We have in the distance before us, a peculiarly shaped rock of considerable height, called _Mari_, in the midst of a range. We are encamped in the bed of an immense broad valley, and camels are feeding about in considerable numbers. The salt-caravan is very near. We are not yet in the regular caravan route, _viâ_ Asoudee, but expect to reach it after to-morrow. En-Noor has with him as a guest the principal man of Aghadez, before mentioned. This man was once a slave, but by his address has risen thus high, as the slaves frequently do in Turkey: so widely do similar manners prevail. Many slaves in Soudan rise to the highest consequence. The _shonshona_ (or practice of scarifying the face or neck) prevails everywhere in Bornou, Soudan, and all this part of Africa; the Tuaricks and Fellatahs being the only people who abstain from this barbarous practice. Each device of scarifying denotes the peculiar nation of the blacks. I have now got three sketches of faces thus disfigured, and shall get as many as I can. The Mahommedans of the coast usually teach that this way of marking the body is a sin, but nevertheless the black Muslims will not abandon the peculiarities of their nation. _14th._--Started early, but made only two hours and a-quarter, through the expansive valleys of yesterday. Here we found the salt-caravan, there being in this place abundance of room, herbage, and a large well, all necessary for such an assembly of people and beasts. On the road we put up a covey of partridges, and a splendid solitary bird, the _hobara_ of Soudan. Footprints of the hares and of the gazelle were observed _en route_.