Earth-god Obassi Nsi and pray for vengeance on the race of those who had caused his death.(84) The Washamba of German East Africa believe that certain stony and dangerous places in the paths are the abodes of spirits; hence at any such spot a traveller who would have a prosperous journey must dance a little and deposit a few small stones.(85) The dance and the stones are presumably intended to soften the heart of the spirits and induce them to look favourably on the dancer. In Papa Westray, one of the Orkney Islands, there is a ruined chapel called St. Tredwels, “at the door of which there is a heap of stones; which was the superstition of the common people, who have such a veneration for this chapel above any other, that they never fail, at their coming to it, to throw a stone as an offering before the door: and this they reckon an indispensable duty enjoined by their ancestors.”(86) (M20) Prayers, too, as we have seen, are sometimes offered at these piles. In Laos heaps of stones may be seen beside the path, on which the passenger will deposit a pebble, a branch, or a leaf, while he beseeches the Lord of the Diamond to bestow on him good luck and long life.(87) In the Himalayan districts of the North-Western Provinces of India heaps of stones and sticks are often to be seen on hills or at cross-roads. They are formed by the contributions of passing travellers, each of whom in adding his stone or stick to the pile prays, saying, “Thou goddess whose home is on the ridge, eater of wood and stone, preserve me.”(88) Tibetan travellers mutter a prayer at the cairns on the tops of passes to which they add a few stones gathered by them on the ascent.(89) A native of South-Eastern Africa who places a small stone on a cairn is wont to say as he does so, “Cairn, grant me strength and prosperity.”(90) In the same circumstances the Hottentot prays for plenty of cattle,(91) and the Caffre that his journey may be prosperous, that he may have strength to accomplish it, and that he may obtain an abundant supply of food by the way.(92) It is said that sick Bushmen used to go on pilgrimage to the cairn called the Devil’s Neck, and pray to the spirit of the place to heal them, while they rubbed the sick part of their body and cried, “Woe! woe!” On special occasions, too, they resorted thither and implored the spirit’s help.(93) Such customs seem to indicate the gradual transformation of an old magical ceremony into a religious rite with its characteristic features of prayer and sacrifice. Yet behind these later accretions, as we may perhaps regard them, it seems possible in many, if not in all, cases to discern the nucleus to which they have attached themselves, the original idea which they tend to conceal and in time to transmute. That idea is the transference of evil from man to a material substance which he can cast from him like an outworn garment. § 3. The Transference to Animals.