(M66) The Yaos, a tribe of British Central Africa in the neighbourhood of Lake Nyassa, believe that every human being has a _lisoka_, a soul, shade, or spirit, which they appear to associate with the shadow or picture of the person. Some of them have been known to refuse to enter a room where pictures were hung on the walls, “because of the _masoka_, souls, in them.” The camera was at first an object of dread to them, and when it was turned on a group of natives they scattered in all directions with shrieks of terror. They said that the European was about to take away their shadows and that they would die; the transference of the shadow or portrait (for the Yao word for the two is the same, to wit _chiwilili_) to the photographic plate would involve the disease or death of the shadeless body. A Yao chief, after much difficulty, allowed himself to be photographed on condition that the picture should be shewn to none of his subjects, but sent out of the country as soon as possible. He feared lest some ill-wisher might use it to bewitch him. Some time afterwards he fell ill, and his attendants attributed the illness to some accident which had befallen the photographic plate in England.(339) The Ngoni of the same region entertain a similar belief, and formerly exhibited a similar dread of sitting to a photographer, lest by so doing they should yield up their shades or spirits to him and they should die.(340) When Joseph Thomson attempted to photograph some of the Wa-teita in eastern Africa, they imagined that he was a magician trying to obtain possession of their souls, and that if he got their likenesses they themselves would be entirely at his mercy.(341) When Dr. Catat and some companions were exploring the Bara country on the west coast of Madagascar, the people suddenly became hostile. The day before the travellers, not without difficulty, had photographed the royal family, and now found themselves accused of taking the souls of the natives for the purpose of selling them when they returned to France. Denial was vain; in compliance with the custom of the country they were obliged to catch the souls, which were then put into a basket and ordered by Dr. Catat to return to their respective owners.(342)