Pt. 1. Rhetorics of Reform -- 1. The Modern Sphinx: Debating the Social Question in Nineteenth Century France -- 2. Inventing a Social Museum -- Pt. 2. Networking for Reform -- 3. A Genealogy of Republican Reform -- 4. A Laboratory for Social Reform -- Pt. 3. Implementing Reform -- 5. Voluntary Associations and the Republican Ideal -- 6. The Modernity of Hygiene: Interventions in the City