The CLASS is formed of individuals of diverse origin, linked together not by a community of beliefs, as are the members of a sect, or by common professional occupations, as are the members of a caste, but by certain interests and certain habits of life and education almost identical. The middle class and the agricultural class are examples.
Being only concerned in this work with heterogeneous crowds, and reserving the study of homogeneous crowds (sects, castes, and classes) for another volume, I shall not insist here on the characteristics of crowds of this latter kind. I shall conclude this study of heterogeneous crowds by the examination of a few typical and distinct categories of crowds.