This paper presents a series of modifications in technique and procedure in the general area of group therapy developed to meet the needs of a unique client group. The varied material brought together here are derived essentially from the study of a group of mothers formed by the leader in January 1971, after some two years of experience with a fairly typical Puerto Rican mothers group in a school on the elementary level in East Harlem. Such aspects as the length of sessions, media of communication, initial group and individual resistance for economic, social, and/or cultural reasons, and planful use of the therapist's feelings toward client movement from insight to change, as well as the manipulation of certain environmental factors, are considered in this study. Among the features which most strikingly differentiated the group of mothers studied from any privately composed group were the lack of selectivity of members based on screening for diagnosis and the inherent limitations set thereby on range, balance, and preconsideration of likely group dynamics, since all members, generally of depressed social and economic means, had to have young children with behavior and/or learning problems, and only the most disturbed of those who volunteered might be kept out of the group. (Author/JM)