In the beginning of this century it was held that primitive ideas of contagion had nothing to do with ethics. This was how a special category of ritual called magic came to be instituted for scholarly discussion. If pollution ritual could be shown to have some connection with morals its place would have been squarely within the field of religion. To complete our survey of how early religion has fared at the hands of early anthropology, it remains to show that pollution has indeed much to do with morals.