hanging or hovering about them and affecting them from the outside.
As in normal conditions the man's soul, inhabiting his body, is held to give it life, to think, speak, and act through it, so an adaptation of the self-same principle explains abnormal conditions of body or mind, by considering the new symptoms as due to the operation of a second soul-like being, a strange spirit. The possessed man, tossed and shaken in fever, pained and wrenched as though some live creature were tearing or twisting him within, pining as though it were devouring his vitals day by day, rationally finds a personal spiritual cause for his sufferings. In hideous dreams he may even sometimes see the very ghost or nightmare-fiend that plagues him. Especially when the mysterious unseen power throws him helpless on the ground, jerks and writhes him in convulsions, makes him leap upon the bystanders with a giant's strength and a wild beast's ferocity, impels him, with distorted face and frantic gesture, and voice not his own nor seemingly even human, to pour forth wild incoherent raving, or with thought and eloquence beyond his sober faculties to command, to counsel, to foretell — such a one seems to those who watch him, and even to himself, to have become the mere instrument of a spirit which has seized him or entered into him, a possessing demon in whose personality the patient believes so implicitly that he often imagines a personal name for it, which it can declare when it speaks in its own voice and character through his organs of speech; at last, quitting the medium's spent and jaded body, the intruding spirit departs as it came. This is the savage theory of dæmoniacal possession and obsession, which has been for ages, and still remains, the dominant theory of disease and inspiration among the lower races. It is obviously based on an animistic interpretation, most genuine and rational in its proper place in man's intellectual history, of the actual symptoms of the cases. The general doctrine of disease-spirits and oracle-spirits appears to have its earliest, broadest, and most con-
