"A cattle-yard among the Dinkas, when the herds are driven in for the night, is an interesting and also a noisy spot. Each animal has his place, where he is tied to a strong peg driven into the ground; and the herdsmen have the same trouble as herdsmen everywhere else in managing the refractory portion of the drove. Once in a while a man is trampled under their feet or gored by their horns. The absence of clothing is in favor of these cattle-drivers, as they are able to get around with more agility than if they were encumbered with garments. The cows are milked only once a day, and their yield is surprisingly small. [Illustration: A SHEEP WITHOUT WOOL.] "In addition to their horned cattle the Dinkas have great numbers of sheep and goats. But, unlike the sheep of Northern climes, they do not have any wool." "Why should they," said Fred, "when they live in a country where they don't need it? Nature adapts herself to the conditions of the climate." "If that is the fact," retorted Frank, "Nature has not been true to herself in some cases that I could mention. For instance, she ought to have given the natives of London, where it rains so much, a cuticle like a rubber overcoat; and if she had skinned them with regular Goodyear or Macintosh garments, pockets and all, she would have done a good thing." "Quite right," replied his cousin; "and while she was about it she might have given the New Yorker a double covering of mosquito-netting and buffalo robes, so that he could provide for his tropical summers and his arctic winters. When you talk about the rain of England you may offset it against the terrible variations of the thermometer in New York." "But about the Dinka sheep," said Abdul. "They have a sort of shaggy mane on the neck and shoulders, but the hair on the rest of the body, including the tail, is quite short. This style of covering makes them look like small buffaloes, and when you see one you almost require to be told that you are looking at a sheep, and not at some other animal. Their color is white or a dirty brown, and sometimes they are spotted or 'brindled.' The goats are not unlike the goats of other countries, but they grow quite large, and are usually very thin in flesh. "It is a curious circumstance that the Dinkas do not slaughter their cattle, but have no scruple about eating beef when the animal is killed by accident or is the property of somebody else. They reckon their possessions in cattle, just as we do in money, and a man who has no horned property is indeed poor. Neither do they kill their sheep, and the goat is the only domestic animal that they slaughter for food. In their currency one cow equals thirty goats. Goats take care of themselves, and require very little attention, but the cattle must be herded and watched. Wild beasts occasionally carry off their goats, but the loss is so slight that it is not heeded. [Illustration: A DINKA VILLAGE NEAR THE WHITE NILE.]