Hollinger (history, U. of California, Berkeley) rejects the conventional liberal toleration of ethnic groups as preserving the European dominance, and the multiculturalist alternative as fragmentation into warring enclaves. He proposes instead cosmopolitanism, based not on biology but on consent and the right of everyone to emphasize or diminish the significance of their ethnic or racial affiliation. Annotation c. by Book News, Inc. , Portland, Or.