(M18) The Dinka are a congeries of independent tribes in the valley of the White Nile, whose territory, lying mostly on the eastern bank of the river and stretching from the sixth to the twelfth degree of North Latitude, has been estimated to comprise between sixty and seventy thousand square miles. They are a tall long-legged people rather slender than fat, with curly hair and a complexion of the deepest black. Though ill-fed, they are strong and healthy and in general reach a great age. The nation embraces a number of independent tribes, and each tribe is mainly composed of the owners of cattle; for the Dinka are essentially a pastoral people, passionately devoted to the care of their numerous herds of oxen, though they also keep sheep and goats, and the women cultivate small quantities of millet (durra) and sesame. The tribes have no political union. Each village forms a separate community, pasturing its herds together in the same grass-land. With the change of the seasons the people migrate with their flocks and herds to and from the banks of the Nile. In summer, when the plains near the great river are converted into swamps and covered with clouds of mosquitoes, the herdsmen and their families drive their beasts to the higher land of the interior, where the animals find firm ground, abundant fodder, and pools of water at which to slake their thirst in the fervour of the noonday heat. Here in the clearings of the forest the community takes up its abode, each family dwelling by itself in one or more conical huts enclosed by a strong fence of stakes and thorn-bushes. It is in the patches of open ground about these dwellings that the women grow their scanty crops of millet and sesame. The mode of tillage is rude. The stumps of the trees which have been felled are left standing to a height of several feet; the ground is hacked by the help of a tool between a hoe and a spade, and the weeds are uprooted with the hand. Such as it is, the crop is exposed to the ravages of apes and elephants by night and of birds by day. The hungry blacks do not always wait till the corn is ripe, but eat much of it while the ears are still green. The cattle are kept in separate parks (_murahs_) away from the villages. It is in the season of the summer rains that the Dinka are most happy and prosperous. Then the cattle find sweet grass, plentiful water, coolness and shade in the forest; then the people subsist in comfort on the milk of their flocks and herds, supplementing it with the millet which they reap and the wild fruits which they gather in the forest; then they brew the native beer, then they marry and dance by night under the bright moon of the serene tropical sky. But in autumn a great change passes over the life of the community. When October has come, the rains are over, the grass of the pastures is eaten down or withered, the pools are dry; thirst compels the whole village, with its lowing herds and bleating flocks, to migrate to