Extensive observations of the pattern of seating by Negro and white college students in the cafeterias of Brooklyn College (1953) and City College of New York (1963 and 1965) revealed consistent isolation of the Negro students. This pattern of social (self) segregation existed within environments which have always been physically integrated and which are viewed by members of both races as being tolerant and generally nonprejudiced. Despite a significant increase (during the decade studied) of interracial contact, interview data indicated Negroes were still on the periphery of campus life and affiliated with noncollege friends and groups more than were white students who used the college as their major reference group. (Author)