The Baganda believe that every person is born with a double, and this double they identify with the afterbirth, which they regard as a second child. The mother buries the afterbirth at the root of a plantain tree, which then becomes sacred until the fruit has ripened, when it is plucked to furnish a sacred feast for the family. Among the Cherokees the navel-string of a girl is buried under a corn-mortar, in order that the girl may grow up to be a good baker; but the navel-string of a boy is hung up on a tree in the woods, in order that he may be a hunter. The Incas of Peru preserved the navel-string with the greatest care, and gave it to the child to suck whenever it fell ill. In ancient Mexico they used to give a boy’s navel-string to soldiers, to be buried by them on a field of battle, in order that the boy might thus acquire a passion for war. But the navel-string of a girl was buried beside the domestic hearth, because this was believed to inspire her with a love of home and taste for cooking and baking.

Even in Europe many people still believe that a person’s destiny is more or less bound up with that of his navel-string or afterbirth. Thus in Rhenish Bavaria the navel-string is kept for a while wrapt up in a piece of old linen, and then cut or pricked to pieces according as the child is a boy or a girl, in order that he or she may grow up to be a skilful workman or a good sempstress. In Berlin the midwife commonly delivers the dried navel-string to the father with a strict injunction to preserve it carefully, for so long as it is kept the child will live and thrive and be free from sickness. In Beauce and Perche the people are careful to throw the navel-string neither into water nor into fire, believing that if that were done the child would be drowned or burned.

Thus in many parts of the world the navel-string, or more commonly the afterbirth, is regarded as a living being, the brother or sister of the infant, or as the material object in which the guardian spirit of the child or part of its soul resides. Further, the sympathetic connexion supposed to exist between a person and his afterbirth or navel-string comes out very clearly in the widespread custom of treating the afterbirth or navel-string in ways which are supposed to influence for life the character and career of the person, making him, if it is a man, a nimble climber, a strong swimmer, a skilful hunter, or a brave soldier, and making her, if it is a woman, a cunning sempstress, a good baker, and so forth. Thus the beliefs and usages concerned with the afterbirth or placenta, and to a less extent with the navel-string, present a remarkable parallel to the widespread doctrine of the transferable or external soul and the customs founded on it. Hence it is hardly rash to conjecture that the resemblance is no mere chance coincidence, but that in the afterbirth or placenta we have a physical basis (not necessarily the only one) for the theory and practice of the external soul. The consideration of that subject is reserved for a later part of this work.

A curious application of the doctrine of contagious magic is the relation commonly believed to exist between a wounded man and the agent of the wound, so that whatever is subsequently done by or to the agent must correspondingly affect the patient either for good or evil. Thus Pliny tells us that if you have wounded a man and are sorry for it, you have only to spit on the hand that gave the wound, and the pain of the sufferer will be instantly alleviated. In Melanesia, if a man’s friends get possession of the arrow which wounded him, they keep it in a damp place or in cool leaves, for then the inflammation will be trifling and will soon subside. Meantime the enemy who shot the arrow is hard at work to aggravate the wound by all the means in his power. For this purpose he and his friends drink hot and burning juices and chew irritating leaves, for this will clearly inflame and irritate the wound. Further, they keep the bow near the fire to make the wound which it has inflicted hot; and for the same reason they put the arrow-head, if it has been recovered, into the fire. Moreover, they are careful to keep the bow-string taut and to twang it occasionally, for this will cause the wounded man to suffer from tension of the nerves and spasms of tetanus. “It is constantly received and avouched,” says Bacon, “that the anointing of the weapon that maketh the wound will heal the wound itself. In this experiment, upon the relation of men of credit (though myself, as yet, am not fully inclined to believe it), you shall note the points following: first, the ointment wherewith this is done is made of divers ingredients, whereof the strangest and hardest to come by are the moss upon the skull of a dead man unburied, and the fats of a boar and a bear killed in the act of generation.” The precious ointment compounded out of these and other ingredients was applied, as the philosopher explains, not to the wound but to the weapon, and that even though the injured man was at a great distance and knew nothing about it. The experiment, he tells us, had been tried of wiping the ointment off the weapon without the knowledge of the person hurt, with the result that he was presently in a great rage of pain until the weapon was anointed again. Moreover, “it is affirmed that if you cannot get the weapon, yet if you put an instrument of iron or wood resembling the weapon into the wound, whereby it bleedeth, the anointing of that instrument will serve and work the effect.” Remedies of the sort which Bacon deemed worthy of his attention are still in vogue in the eastern counties of England. Thus in Suffolk if a man cuts himself with a bill-hook or a scythe he always takes care to keep the weapon bright, and oils it to prevent the wound from festering. If he runs a thorn or, as he calls it, a bush into his hand, he oils or greases the extracted thorn. A man came to a doctor with an inflamed hand, having run a thorn into it while he was hedging. On being told that the hand was festering, he remarked, “That didn’t ought to, for I greased the bush well after I pulled it out.” If a horse wounds its foot by treading on a nail, a Suffolk groom will invariably preserve the nail, clean it, and grease it every day, to prevent the foot from festering. Similarly Cambridgeshire labourers think that if a horse has run a nail into its foot, it is necessary to grease the nail with lard or oil and put it away in some safe place, or the horse will not recover. A few years ago a veterinary surgeon was sent for to attend a horse which had ripped its side open on the hinge of a farm gatepost. On arriving at the farm he found that nothing had been done for the wounded horse, but that a man was busy trying to pry the hinge out of the gatepost in order that it might be greased and put away, which, in the opinion of the Cambridge wiseacres, would conduce to the recovery of the animal. Similarly Essex rustics opine that, if a man has been stabbed with a knife, it is essential to his recovery that the knife should be greased and laid across the bed on which the sufferer is lying. So in Bavaria you are directed to anoint a linen rag with grease and tie it on the edge of the axe that cut you, taking care to keep the sharp edge upwards. As the grease on the axe dries, your wound heals. Similarly in the Harz Mountains they say that if you cut yourself, you ought to smear the knife or the scissors with fat and put the instrument away in a dry place in the name of the Father, of the Son, and of the Holy Ghost. As the knife dries, the wound heals. Other people, however, in Germany say that you should stick the knife in some damp place in the ground, and that your hurt will heal as the knife rusts. Others again, in Bavaria, recommend you to smear the axe or whatever it is with blood and put it under the eaves.

The train of reasoning which thus commends itself to English and German rustics, in common with the savages of Melanesia and America, is carried a step further by the aborigines of Central Australia, who conceive that under certain circumstances the near relations of a wounded man must grease themselves, restrict their diet, and regulate their behaviour in other ways in order to ensure his recovery. Thus when a lad has been circumcised and the wound is not yet healed, his mother may not eat opossum, or a certain kind of lizard, or carpet snake, or any kind of fat, for otherwise she would retard the healing of the boy’s wound. Every day she greases her digging-sticks and never lets them out of her sight; at night she sleeps with them close to her head. No one is allowed to touch them. Every day also she rubs her body all over with grease, as in some way this is believed to help her son’s recovery. Another refinement of the same principle is due to the ingenuity of the German peasant. It is said that when one of his pigs or sheep breaks its leg, a farmer of Rhenish Bavaria or Hesse will bind up the leg of a chair with bandages and splints in due form. For some days thereafter no one may sit on that chair, move it, or knock up against it; for to do so would pain the injured pig or sheep and hinder the cure. In this last case it is clear that we have passed wholly out of the region of contagious magic and into the region of homoeopathic or imitative magic; the chair-leg, which is treated instead of the beast’s leg, in no sense belongs to the animal, and the application of bandages to it is a mere simulation of the treatment which a more rational surgery would bestow on the real patient.

The sympathetic connexion supposed to exist between a man and the weapon which has wounded him is probably founded on the notion that the blood on the weapon continues to feel with the blood in his body. For a like reason the Papuans of Tumleo, an island off New Guinea, are careful to throw into the sea the bloody bandages with which their wounds have been dressed, for they fear that if these rags fell into the hands of an enemy he might injure them magically thereby. Once when a man with a wound in his mouth, which bled constantly, came to the missionaries to be treated, his faithful wife took great pains to collect all the blood and cast it into the sea. Strained and unnatural as this idea may seem to us, it is perhaps less so than the belief that magic sympathy is maintained between a person and his clothes, so that whatever is done to the clothes will be felt by the man himself, even though he may be far away at the time. In the Wotjobaluk tribe of Victoria a wizard would sometimes get hold of a man’s opossum rug and roast it slowly in the fire, and as he did so the owner of the rug would fall sick. If the wizard consented to undo the charm, he would give the rug back to the sick man’s friends, bidding them put it in water, “so as to wash the fire out.” When that happened, the sufferer would feel a refreshing coolness and probably recover. In Tanna, one of the New Hebrides, a man who had a grudge at another and desired his death would try to get possession of a cloth which had touched the sweat of his enemy’s body. If he succeeded, he rubbed the cloth carefully over with the leaves and twigs of a certain tree, rolled and bound cloth, twigs, and leaves into a long sausage-shaped bundle, and burned it slowly in the fire. As the bundle was consumed, the victim fell ill, and when it was reduced to ashes, he died. In this last form of enchantment, however, the magical sympathy may be supposed to exist not so much between the man and the cloth as between the man and the sweat which issued from his body. But in other cases of the same sort it seems that the garment by itself is enough to give the sorcerer a hold upon his victim. The witch in Theocritus, while she melted an image or lump of wax in order that her faithless lover might melt with love of her, did not forget to throw into the fire a shred of his cloak which he had dropped in her house. In Prussia they say that if you cannot catch a thief, the next best thing you can do is to get hold of a garment which he may have shed in his flight; for if you beat it soundly, the thief will fall sick. This belief is firmly rooted in the popular mind. Some eighty or ninety years ago, in the neighbourhood of Berend, a man was detected trying to steal honey, and fled, leaving his coat behind him. When he heard that the enraged owner of the honey was mauling his lost coat, he was so alarmed that he took to his bed and died.

Again, magic may be wrought on a man sympathetically, not only through his clothes and severed parts of himself, but also through the impressions left by his body in sand or earth. In particular, it is a world-wide superstition that by injuring footprints you injure the feet that made them. Thus the natives of South-eastern Australia think that they can lame a man by placing sharp pieces of quartz, glass, bone, or charcoal in his footprints. Rheumatic pains are often attributed by them to this cause. Seeing a Tatungolung man very lame, Mr. Howitt asked him what was the matter. He said, “some fellow has put bottle in my foot.” He was suffering from rheumatism, but believed that an enemy had found his foot-track and had buried it in a piece of broken bottle, the magical influence of which had entered his foot.

Similar practices prevail in various parts of Europe. Thus in Mecklenburg it is thought that if you drive a nail into a man’s footprint he will fall lame; sometimes it is required that the nail should be taken from a coffin. A like mode of injuring an enemy is resorted to in some parts of France. It is said that there was an old woman who used to frequent Stow in Suffolk, and she was a witch. If, while she walked, any one went after her and stuck a nail or a knife into her footprint in the dust, the dame could not stir a step till it was withdrawn. Among the South Slavs a girl will dig up the earth from the footprints of the man she loves and put it in a flower-pot. Then she plants in the pot a marigold, a flower that is thought to be fadeless. And as its golden blossom grows and blooms and never fades, so shall her sweetheart’s love grow and bloom, and never, never fade. Thus the love-spell acts on the man through the earth he trod on. An old Danish mode of concluding a treaty was based on the same idea of the sympathetic connexion between a man and his footprints: the covenanting parties sprinkled each other’s footprints with their own blood, thus giving a pledge of fidelity. In ancient Greece superstitions of the same sort seem to have been current, for it was thought that if a horse stepped on the track of a wolf he was seized with numbness; and a maxim ascribed to Pythagoras forbade people to pierce a man’s footprints with a nail or a knife.

The same superstition is turned to account by hunters in many parts of the world for the purpose of running down the game. Thus a German huntsman will stick a nail taken from a coffin into the fresh spoor of the quarry, believing that this will hinder the animal from escaping. The aborigines of Victoria put hot embers in the tracks of the animals they were pursuing. Hottentot hunters throw into the air a handful of sand taken from the footprints of the game, believing that this will bring the animal down. Thompson Indians used to lay charms on the tracks of wounded deer; after that they deemed it superfluous to pursue the animal any further that day, for being thus charmed it could not travel far and would soon die. Similarly, Ojebway Indians placed “medicine” on the track of the first deer or bear they met with, supposing that this would soon bring the animal into sight, even if it were two or three days’ journey off; for this charm had power to compress a journey of several days into a few hours. Ewe hunters of West Africa stab the footprints of game with a sharp-pointed stick in order to maim the quarry and allow them to come up with it.

But though the footprint is the most obvious it is not the only impression made by the body through which magic may be wrought on a man. The aborigines of South-eastern Australia believe that a man may be injured by burying sharp fragments of quartz, glass, and so forth in the mark made by his reclining body; the magical virtue of these sharp things enters his body and causes those acute pains which the ignorant European puts down to rheumatism. We can now understand why it was a maxim with the Pythagoreans that in rising from bed you should smooth away the impression left by your body on the bed-clothes. The rule was simply an old precaution against magic, forming part of a whole code of superstitious maxims which antiquity fathered on Pythagoras, though doubtless they were familiar to the barbarous forefathers of the Greeks long before the time of that philosopher.