Sociological ambivalence and other essays Sociological ambivalence (with E. Barber). The ambivalence of scientists. The ambivalence of scientists a postscript. The ambivalence of physicians. The ambivalence of organizational leaders. Dilemmas in voluntary associations. Structural analysis in sociology. The unanticipated consequences of social action. Social knowledge and public policy. The canons of the anti sociologist. Discrimination and the American creed. Intermarriage and the social structure. Fact and factitiousness in ethnic opinionnaires