ABSTRACT
Custom and public opinion may be considered together, since they have certain features in common and there are important connections between them. In the first place, they are to be counted among the less formal types of social control. They do not have the kind of systematic elaboration which we find in the case of law, morality or religion. There is a certain vagueness, and sometimes ambiguity, in regard to infractions of the code of behaviour which they prescribe, and in regard to punishments.
