allow an emotional process such as might have arisen among generations of sons that had been ill-treated by their fathers, to continue to new generations which had escaped such treatment by the very removal of the father. These seem indeed to be weighty objections and any other explanation which can avoid such assumptions would seem to merit preference.
But further consideration shows that we ourselves do not have to carry the whole responsibility for such daring. Without the assumption of a mass psyche, or a continuity in the emotional life of mankind which permits us to disregard the interruptions of psychic acts through the transgression of individuals, social psychology could not exist at all. If psychic processes of one generation did not continue in the next, if each had to acquire its attitude towards life afresh, there would be no progress in this field and almost no development. We are now confronted by two new questions: how much can be attributed to this psychic continuity within the series of generations, and what ways and means does a generation use to transfer its psychic states to the next generation? I do not claim that these problems have been sufficiently explained or that direct communication and tradition, of which one immediately thinks, are adequate for the task. Social psychology is in gen-
