It is remarkable that this tendency to localization has been in all ages a mark of the ghost, and still marks him in the cases investigated by the Psychical Society. Yet the local character of ghosts has not become an impediment in the way of the acceptance of the Christian doctrines of Heaven, Hell, and Purgatory. Among our ancestors, just as among the Greeks, beliefs could lie in strata, and inconsistencies between a belief of one stratum and a belief of another stratum had little disturbing power. When Campbell writes in his noble address to the Mariners of England, ‘The spirits of your fathers shall start from every wave,’ he can scarcely be supposed to deny that the souls of British naval heroes had found a heavenly resting-place. Sometimes, however, the Greek mind was disturbed by inconsistencies of this kind, and evolved a theory for their explanation. Thus a later interpolator of the _Odyssey_, being scandalized by the assertion of Odysseus that he saw in Hades the mighty Herakles, adds[47], ‘his ghost (εἴδωλον) only; since he himself joys amid the delights of the immortal gods.’ Others supposed that it was only the spirits of the unburied which hovered around their bodies: and it is an ingenious modern theory that the custom of burning the bodies of the dead arose out of the desire to prevent them from disturbing the living. But in spite of everything, the Greek dead retained to the last their right to levy tribute on their descendants and friends. CHAPTER IV THE PRE-HISTORIC AGE OF GREECE When we turn from the facts of Greek cult and belief as to a future life to the monuments of the dead, and set them in chronological order, the first group which commands our attention is that which belongs to the pre-historic city of Mycenae. We cannot here speak of the wealth of gold and silver, of bronze and ivory, which the fortunate spade of Dr. Schliemann brought to light within the sacred circle in the Acropolis of the city[48]. We must pass by the contents of the graves of the wealthy pre-historic monarchs of Mycenae, and confine our survey to the outward and sculptural adornments of their tombs. These fall into two well-marked and clearly distinguished classes. First, we have the conical so-called treasuries, of which several exist in the neighbourhood of Mycenae, as well as at Orchomenus, Menidi and other spots of Greece; secondly, we have the carved tombstones which were set up over the graves in the Mycenaean Acropolis.