The reader may have observed that in some of the foregoing examples of taboos the magical influence is supposed to operate at considerable distances; thus among the Blackfeet Indians the wives and children of an eagle hunter are forbidden to use an awl during his absence, lest the eagles should scratch the distant husband and father; and again no male animal may be killed in the house of a Malagasy soldier while he is away at the wars, lest the killing of the animal should entail the killing of the man. This belief in the sympathetic influence exerted on each other by persons or things at a distance is of the essence of magic. Whatever doubts science may entertain as to the possibility of action at a distance, magic has none; faith in telepathy is one of its first principles. A modern advocate of the influence of mind upon mind at a distance would have no difficulty in convincing a savage; the savage believed in it long ago, and what is more, he acted on his belief with a logical consistency such as his civilised brother in the faith has not yet, so far as I am aware, exhibited in his conduct. For the savage is convinced not only that magical ceremonies affect persons and things afar off, but that the simplest acts of daily life may do so too. Hence on important occasions the behaviour of friends and relations at a distance is often regulated by a more or less elaborate code of rules, the neglect of which by the one set of persons would, it is supposed, entail misfortune or even death on the absent ones. In particular when a party of men are out hunting or fighting, their kinsfolk at home are often expected to do certain things or to abstain from doing certain others, for the sake of ensuring the safety and success of the distant hunters or warriors. I will now give some instances of this magical telepathy both in its positive and in its negative aspect. In Laos when an elephant hunter is starting for the chase, he warns his wife not to cut her hair or oil her body in his absence; for if she cut her hair the elephant would burst the toils, if she oiled herself it would slip through them. When a Dyak village has turned out to hunt wild pigs in the jungle, the people who stay at home may not touch oil or water with their hands during the absence of their friends; for if they did so, the hunters would all be "butter-fingered" and the prey would slip through their hands.