A rather singular case of voluntary slavery came to our knowledge: a free black, an intelligent active young fellow, called Chibanti, who had been our pilot on the river, told us that he had sold himself into slavery. On asking why he had done this, he replied that he was all alone in the world, had neither father nor mother, nor any one else to give him water when sick, or food when hungry; so he sold himself to Major Sicard, a notoriously kind master, whose slaves had little to do, and plenty to eat. "And how much did you get for yourself?" we asked. "Three thirty- yard pieces of cotton cloth," he replied; "and I forthwith bought a man, a woman, and child, who cost me two of the pieces, and I had one piece left." This, at all events, showed a cool and calculating spirit; he afterwards bought more slaves, and in two years owned a sufficient number to man one of the large canoes. His master subsequently employed him in carrying ivory to Quillimane, and gave him cloth to hire mariners for the voyage; he took his own slaves, of course, and thus drove a thriving business; and was fully convinced that he had made a good speculation by the sale of himself, for had he been sick his master must have supported him. Occasionally some of the free blacks become slaves voluntarily by going through the simple but significant ceremony of breaking a spear in the presence of their future master. A Portuguese officer, since dead, persuaded one of the Makololo to remain in Tette, instead of returning to his own country, and tried also to induce him to break a spear before him, and thus acknowledge himself his slave, but the man was too shrewd for this; he was a great elephant doctor, who accompanied the hunters, told them when to attack the huge beast, and gave them medicine to ensure success. Unlike the real Portuguese, many of the half-castes are merciless slave-holders; their brutal treatment of the wretched slaves is notorious. What a humane native of Portugal once said of them is appropriate if not true: "God made white men, and God made black men, but the devil made half-castes."