'Shadow' or Magic of the Dènè Hareskins: its four categories. These are characteristic of all Savage Spiritualism. The subject somewhat neglected by Anthropologists. Uniformity of phenomena. Mr. Tylor's theory of the origin of 'Animism'. Question whether there are any phenomena not explained by Mr. Tylor's theory. Examples of uniformity. The savage hypnotic trance. Hareskin examples. Cases from British Guiana. Australian rapping spirits. Maori oracles. A Maori 'séance'. The North American Indian Magic Lodge. Modern and old Jesuit descriptions. Movements of the Lodge. Insensibility of Red Indian Medium to fire. Similar case of D. D. Home. Flying table in Thibet. Other instances. Montezuma's 'astral body'. Miracles. Question of Diffusion by borrowing, or of independent evolution.