They were very numerous⁠—for instance, there were thirteen villages of them side by side in this Wadi Safra⁠—so they formed a society of their own, and lived much at their pleasure. Their work was hard, but the supervision loose, and escape easy. Their legal status was bad, for they had no appeal to tribal justice, or even to the Sherif’s courts; but public opinion and self-interest deprecated any cruelty towards them, and the tenet of the faith that to enlarge a slave is a good deed, meant in practice that nearly all gained freedom in the end. They made pocket-money during their service, if they were ingenious. Those I saw had property, and declared themselves contented. They grew melons, marrows, cucumber, grapes and tobacco for their own account, in addition to the dates, whose surplus was sent across to the Sudan by sailing dhow, and there exchanged for corn, clothing and the luxuries of Africa or Europe.