A _horse-shoe_ was of great power for the protection of cattle against witchcraft. As in England, it must be found by accident. It was put above the byre door, and a nail from it driven into the lowest hoop (_cearcal_) of the milk-dish (_mias_) kept its substance in the milk. It preserved horses when put above the stable door, and ships when nailed to the mast. An entire horse could not be touched by evil spirits, and its rider was safe from the attacks of witchcraft. A person in the neighbourhood of Luing, Argyllshire, returning from a funeral, found himself unable to make any progress on his road home, though he did his utmost all night to get on. He was retarded by some unseen influence. He rode an entire horse, and found himself safe at daybreak. His safety lay in the horse he rode. The famed _Red Book of Appin_, according to one version of the tale, was got by one who rode an entire horse to a meeting of witches, and, having got hold of the book, made off with it in despite of the devil and all his servants. In a West Highland tale (ii., 87), the owner of the _Red Book_ advises the shoe of an entire horse to be nailed on the byre door, to counteract the witches, who were taking the milk from the cows. The shoes of entire horses probably are the proper kind to use, though others came into use from being found equally efficacious. _Tar_, put on the door, kept witches away, and put on the cow’s ear, was believed to prevent _ceathramh gorm_, or quarter ill. If, notwithstanding all these safeguards, or through neglect of them, a cow lost its milk, or the milk ceased to yield butter or cream, there were several methods by which the witchcraft, which was undoubtedly the cause, might be counteracted. Some of these remedies appear more like the inventions of practical jokers than ceremonies from which any rational meaning can be taken.