Many people started in the night to get water, and give their animals a drink. There is but a small supply, and what there is has a muddy, chocolate colour. The last water we took up from the valleys of Asben had a milky hue, so that when the coffee was made of it, it looked like café au lait.
Bandits and hostile tribes frequent this well of Chidugulah, and rest hereabouts to pillage caravans. Our people spoke of the Oulimad, and Overweg dreamed he was fighting with them. I dreamed the same night of large turtles, for it had been said they are found in this plateau, and their marks had been traced to-day. I learn now that large turtles, two feet and a-half long, and one foot and a-half broad, are found here. The back shell of one was used for a watering trough by the people we met en route. We had sand all day, rising occasionally in considerable mounds. I observed the prevailing winds in the formation of these mounds; for there is always an inclined plane towards the quarter whence the wind blows; whilst to where it blows the mounds are scarped. The winds prevailing now are E.N.E.; and the wind has nearly always come from this direction since our arrival in Aheer. In another season, however, there may be a total change. In full summer it may be south, for what we know. In fact, Amankee says, in summer the wind always comes from the south. At this season the sand is covered with nice herbage in some places, but in the hot weather it must be all dried up. This is, in truth, the spring time in this country; the birds are all laying. There are also young birds fledged. In Haussa there is no word for "fledged."
This route must really present, in some parts, for many hours together, an ocean of sand; as, I think, it is described in the Itinerary procured by Davis. To-day the footprints of the giraffe have entirely disappeared.
In summer it must be very difficult for large caravans to obtain water from this well, for our people were full half a day filling four or five skins. What a blessing, nevertheless, is the existence of the Chidugula, for there is no water for three days farther. The boys killed this morning a jerboah, or what the Germans call a jumping mouse. I saw one yesterday, jumping before my camel's feet. There are a great number here. This jerboah is of a different colour from those I have seen in Tunis; being white all over the lower part of the body and neck, straw-coloured on the top of the head and along the back; whilst those in Tunis are nearly of the same colour as ordinary mice. This species is also small, three inches and a-half long, and the tail is double the length of the body. The hind legs are nearly as long as the body, and the fore legs not half an inch. Near the tip of the tail there is an inch of black. Many young jerboahs were caught, all of the same description. The Haussa people call it a mouse, but have besides a special name.
We are now about the middle of the Sahara, including the radii of the western and northern coasts, and we here find an immense plateau, stretching many days north and south, east and west. So far Le Brun's conjecture is right, that the central parts of Africa are plateaux, or one vast plateau. But more of this hereafter. This plateau extends to the Bornou route, and how much further east is yet to be ascertained. In the west we yet also want information. North and south it extends along the territory of Aheer some eight days, or about one hundred and sixty miles. Overweg reckons the height of the plateau, above the level of the sea, at some fifteen hundred feet.
31st.—The last day of the year! One year gone in Africa this tour! How many more are to pass? Alas! who can tell?—We came to-day nine hours, always south, over a perfect desert-plain, mostly sandy. A cold north-east wind was blowing all the day. The people dread it as death itself; as well they may, for they are nearly naked. Their Soudan cotton clothes afford them little or no protection against such a bleak north-easter. Europeans are astonished to see these people shivering with cold in this bleak weather, and forget that they themselves are well clothed. This remark is very applicable to the northern coast, where hundreds of the poor are seen shivering, with only a thin blanket thrown around them in the coldest day of winter. When they see a European well covered with tight cloth clothes, and flannel underneath, they may well call out sega, "cold," as they often do; and we are ready to laugh, and forget they are naked.
In this part of the desert birds of prey abound. We passed to-day some twenty large vultures, feeding on a dead camel. When the caravan filed by they all took wing, and perched themselves in a row on a rising mound of sand, and there waited until we had passed before them, like so many soldiers. These were black vultures, and of enormous breadth of wing. Many wild oxen, or what are so called, were seen, and everywhere the footprints of ostriches and gazelles. His highness En-Noor made us a present of two ostrich eggs, and we supped on this out-of-the-way delicacy the last day of the year. The date of the black country (Soudan) is deserving of notice. It is called in Bornou, bitu; and in Haussa, aduwa and tinku, both tree and fruit. Its kernel, or stone, is very large, and the little pulpy matter upon it has the taste of a bitter sweet. It is about the size of an almond, and covered with a green husk, a little thick. This fruit is now ripening fast in Aheer. The tree is covered with thorns, very large, and projecting in every direction. The leaves are small, almost without veins, and with a thick stalk.
To-day we had the karengia, or bur, with a vengeance. En-Noor had already advertised us of its appearance hereabouts two days ago. It is certainly the most troublesome thing that can well be conceived for all travellers, and more so for Europeans. This bur is from a species of herbage bearing grain, very small, and which the people make bazeen of, like ghaseb and other grain. All feet of men, women, and animals, were to-day covered with this teasing bur.
The animals seen on this plateau, it will be seen, are in reality mostly of the harmless kind. The giraffe, the wild ox (considered a species of immense gazelle, or stag), the gazelle, a large and small species, the ostrich, the guinea-fowl, the hobara (in Haussa, tuja), various kinds of vultures, the crow, many small birds, the lizard (in small numbers), the jerboah, the locust, butterflies, and other insects, the thob, the large turtle, &c. Overweg says the footmarks of the hyæna were also seen.
En-Noor's people caught a young ostrich, only a few hours hatched. It is now kept as a pet. Several eggs have been also picked up. The ostrich has been seen feeding on the gum of the tholukh-tree.