history of manes-worship, it is plain that in our time the dead still receive worship from far the larger half of mankind, and it may have been much the same ever since the remote periods of primitive culture in which the religion of the manes probably took its rise.
It has now been seen that the theory of souls recognizes them as capable either of independent existence, or of inhabiting human, animal, or other bodies. On the principle here maintained, that the general theory of spirits is modelled on the theory of souls, we shall be able to account for several important branches of the lower philosophy of religion, which without such explanation may appear in great measure obscure or absurd. Like souls, other spirits are supposed able either to exist and act flitting free about the world, or to become incorporate for more or less time in solid bodies. It will be well at once to get a secure grasp of this theory of Embodiment, for without it we shall be stopped every moment by a difficulty in understanding the nature of spirits, as defined in the lower animism. The theory of embodiment serves several highly important purposes in savage and barbarian philosophy. On the one hand it provides an explanation of the phenomena of morbid exaltation and derangement, especially as connected with abnormal utterance, and this view is so far extended as to produce an almost general doctrine of disease. On the other hand, it enables the savage either to 'lay' a hurtful spirit in some foreign body, and so get rid of it, or to carry about a useful spirit for his service in a material object, to set it up as a deity for worship in the body of an animal, or in a block or stone or image or other thing, which contains the spirit as a vessel contains a fluid: this is the key to strict fetishism, and in no small measure to idolatry. In briefly considering these various branches of the Embodiment-theory, there may be conveniently included certain groups of cases often impossible to distinguish apart. These cases belong theoretically rather to obsession than possession, the spirits not actually inhabiting the bodies, but
