511. FREGIER (Honoré-Antoine). Des Classes dangereuses de la population dans les grandes villes, et des moyens de les rendre meilleures. Paris, Baillière, 1840, 2 vols. in-8, (V)-XI-432 pp. and 2 ff. n. ch., 527 pp. in glazed blue half-calf, ribbed spine, gilt fillets (period binding). First edition. As a bureau chief at the Seine Prefecture, Frégier was the first to put into perspective what Louis Chevalier would develop in his major work published in 1969, Classes laborieuses, classes dangereuses, le monde ouvrier comme risque social. Frégier was not content with simply stating the facts; he also proposed solutions: asylums, education, leisure activities, higher wages, etc. A fine copy. Some foxing.