(M40) It seems clear that, though you may stow away your pain or sickness in a tree, there is a considerable risk of its coming out again. To obviate this danger common prudence suggests that you should plug or bung up the hole as tight as you can. And this, as we should naturally expect, is often done. A German cure for toothache or headache is to wrap some of the sufferer’s cut hair and nails in paper, make a hole in the tree, stuff the parcel into it, and stop up the hole with a plug made from a tree which has been struck by lightning.(198) In Bohemia they say that, if you feel the fever coming on, you should pull out some of your hair, tear off a strip of a garment you are wearing, and bore a hole in a willow-tree. Having done so, you put the hair and the rag in the hole and stop it up with a wedge of hawthorn. Then go home without looking back, and if a voice calls to you, be sure not to answer. When you have complied with this prescription, the fever will cease.(199) In Oldenburg a common remedy for fever is to bore a hole in a tree, breathe thrice into the hole, and then plug it up. Once a man who had thus shut up his fever in a tree was jeered at by a sceptical acquaintance for his credulity. So he went secretly to the tree and drew the stopper, and out came that fever and attacked the sceptic.(200) Sometimes they say that the tree into which you thus breathe your fever or ague should be a hollow willow, and that in going to the tree you should be careful not to utter a word, and not to cross water.(201) Again, we read of a man who suffered acute pains in his arm. So “they beat up red corals with oaken leaves, and having kept them on the part affected till suppuration, they did in the morning put this mixture into an hole bored with an auger in the root of an oak, respecting the east, and stop up this hole with a peg made of the same tree; from thenceforth the pain did altogether cease, and when they took out the amulet immediately the torments returned sharper than before.”(202) These facts seem to put it beyond the reach of reasonable doubt that the pain or malady is actually in the tree and waiting to pop out, if only it gets the chance. § 6. The Nailing of Evils.