Obi or Obeah, is the name of the witchcraft of the negro tribes; and the practitioner is termed an Obi-man or Obi-woman. They practice it at home in Africa, and carry it with them to continue it when they are made slaves in other lands. Obi is now practiced, as I have already hinted, in Cuba and in the Southern States, and is believed in by the more ignorant and foolish white people, as much as by their barbarous slaves. Obi is used only to injure, and the way to perform it upon your enemy is, to hire the Obi man or woman to concoct a charm, and then to hide this, or cause it to be hidden, in some place about the person or abode of the victim where he will find it. He is expected thereupon to fall ill, to wither and waste away, and so to die. Absurd as it may seem, this cursing business operates with a good deal of certainty on the poor negroes, who fall sick instantly on finding the ball of Obi, two or three inches in diameter, hidden in their bed, or in the roof, or under the threshold, or in the earthen floor of their huts. The poor wretches become dejected, lose appetite, strength, and spirits, grow thin and ill, and really wither away and die. It is a curious fact, however, that if under these circumstances you can cause one of them to become converted to Christianity, or to become a Christian by profession, he becomes at once free from the witches' dominion and quickly recovers. The ball of Obi--or, as it is called among the Brazilian negroes, Mandinga--may be made of various materials, always, I believe, including some which are disgusting or horrible. Leaves of trees and scraps of rag may be used; ashes, usually from bones or flesh of some kind; pieces of cats' bones and skulls, feathers, hair, earth, or clay, which ought to be from a grave; teeth of men and of snakes, alligators or other beasts; vegetable gum, or other sticky stuff; human blood, pieces of eggshell, etc., etc. This mixture is curiously like that in the witches' caldron in Macbeth, which, among other equally toothsome matters, contained frogs' toes, bats' wool, lizards' legs, owlets' wings, wolfs' teeth, witches' mummy, Jew's liver, tigers' bowels, and lastly, as a sort of thickening to the gravy, baboon's blood. A creole lady, now at the North, recently told a friend of mine that "the negroes can put some pieces of paper, or powder, or something or other in your shoes, that will make you sick, or make you do anything they want!" The poor foolish woman told this with a face full of awe and eyes wide open. Another lady known to me, long resident at the South, tells me that the belief in this sort of devilism is often found among the white people.