Four essential themes in a cultural-collective behavior approach to ra
ce riots are developed. First is the historical shift in patterns of r
ace rioting. Second is the application of a general collective behavio
r model accounting for extrainstitutionality, conversion of feelings i
nto overt action, and acting collectively rather than individually. Th
ird is process, stressing contingent developments during a period of t
esting. Fourth is the nullification of customary meanings of action, w
ith clues to understanding drawn from anthropological study of ''ritua
ls of rebellion'' and psychological studies of ''obedience to authorit
y.''