ABSTRACT
ABSTRACT: A metaphor of classical social theory concerning the "intersection " of persons within groups and of groups within the individual is translated into a set of techniques to aid in empirical analysis of the inter penetration of networks of interpersonal ties and networks of intergroupties. These techniques are useful in the study of director interlock s, clique structures, organizations with in community and national power structures , and other collectivities which share members. The "membersh ip network analysis" suggested in this paper is compared to and contrasted with sociometric approaches and is applied to the study by Davis et al. (1941) of the social participation of eighteen women.
