The stalks of the doura grow to the height of nine and ten feet; the thunder storms, accompanied with rain and wind, often bend these stalks when near ripe, so that the roots are raised above ground, and the plant dies if the slaves the next day are not sent in to hoe the earth up to the roots of such as are broken down. The stalks of this grain are frequently used for fences and the rafters of their houses. Sometimes they tie the bean and millet straw into bundles, and carry them home for their camels. Their granaries are made in the form of a large urn or pitcher, raised from the ground about three feet by stones. They are made of clay and chopped straw, and are raised to the height of eleven or twelve feet. The thickness of the sides is not above four inches, though in any part it will bear a man’s weight: the diameter in the widest part may be from seven to eight feet, at the top about three or four feet, and is overlapped at the mouth like a wide-mouthed earthen jar. When the grain is put in, a conical cap of thatch is put over to keep out birds, insects, wet and moisture. The doura and millet will keep well in these jars for two or three years; after that period it perishes, and is destroyed by worms and insects. The jar itself will last seven or eight years, if taken care of, by matting round the lower part with straw during the rainy season; if not, two or three years is the period it will stand unimpaired. The time of putting the sweet potatoes in the ground is at the commencement of the rains, the ground being first well cleared of weeds, well hoed into furrows, the clods all broken, and the soil a good strong clay or mould. The branches or stems, in slips, are then planted by the dibble, and are two months before they have potatoes at the roots. The gaza, though differing in taste, shape, name, and size, is not unlike a small quince: it is more watery than a gourd, of a reddish white inside, and by no means a pleasant taste; its stem is as thick as that of a gourd, with large rough leaves like those of a gourd. It is planted like the sweet potatoes, and is perpetuated in the same manner, by joints, and sown in furrows, at the same time, in a good soil of clay or mould.