Nowhere, perhaps, does the equivalence of the shadow to the life or soul come out more clearly than in some customs practised to this day in South-eastern Europe. In modern Greece, when the foundation of a new building is being laid, it is the custom to kill a cock, a ram, or a lamb, and to let its blood flow on the foundation-stone, under which the animal is afterwards buried. The object of the sacrifice is to give strength and stability to the building. But sometimes, instead of killing an animal, the builder entices a man to the foundation-stone, secretly measures his body, or a part of it, or his shadow, and buries the measure under the foundation-stone; or he lays the foundation-stone upon the man's shadow. It is believed that the man will die within the year. The Roumanians of Transylvania think that he whose shadow is thus immured will die within forty days; so persons passing by a building which is in course of erection may hear a warning cry, "Beware lest they take thy shadow!" Not long ago there were still shadow-traders whose business it was to provide architects with the shadows necessary for securing their walls. In these cases the measure of the shadow is looked on as equivalent to the shadow itself, and to bury it is to bury the life or soul of the man, who, deprived of it, must die. Thus the custom is a substitute for the old practice of immuring a living person in the walls, or crushing him under the foundation-stone of a new building, in order to give strength and durability to the structure, or more definitely in order that the angry ghost may haunt the place and guard it against the intrusion of enemies. As some peoples believe a man's soul to be in his shadow, so other (or the same) peoples believe it to be in his reflection in water or a mirror. Thus "the Andamanese do not regard their shadows but their reflections (in any mirror) as their souls." When the Motumotu of New Guinea first saw their likenesses in a looking-glass, they thought that their reflections were their souls. In New Caledonia the old men are of opinion that a person's reflection in water or a mirror is his soul; but the younger men, taught by the Catholic priests, maintain that it is a reflection and nothing more, just like the reflection of palm-trees in the water. The reflection-soul, being external to the man, is exposed to much the same dangers as the shadow-soul. The Zulus will not look into a dark pool because they think there is a beast in it which will take away their reflections, so that they die. The Basutos say that crocodiles have the power of thus killing a man by dragging his reflection under water. When one of them dies suddenly and from no apparent cause, his relatives will allege that a crocodile must have taken his shadow some time when he crossed a stream. In Saddle Island, Melanesia, there is a pool "into which if any one looks he dies; the malignant spirit takes hold upon his life by means of his reflection on the water."