PART 1: Quebec -- The Social Involvement of Intellectuals in Quebec Society: Institutionalization and the Development of a Counter-Ideology, 1943-1960 -- Maturation of the Social Sciences and 'Engagement', 1960-1970 -- Ideological Fragmentation and the Demise of the Nationalist Consensus, 1970-1986 -- PART 2: English Canada -- The Clerisy of Social Scientists, 1945-1971 -- Professional Expansion and Nationalist Dissent, 1963-1971 -- A Stymied Vanguard and Consolidation of the Expert Role, 1971-1986 -- Social Scientists and Politics: Conclusions on the Differences between French and English Canada