Titulos da coleccao: "Six centuries of work and wages, a history of english labor, by James E. Thorold Rogers, abridged with charts and appendix by the rev. W. D. T. Bliss, no.1", "Socialism, by John Stuart Mill", "The socialism and unsocialism of Thomas Carlyle, 2 vols. no.3-4", "Fabian essays in socialism, by G. Bernard Shaw... [et al.], edited by H. G. Wilshire, no.6", "The economics of Herbert Spencer, by W. C. Owen, no.7", "The communism of John Ruskin, no.8", "Horace Greeley and other pioneers, by Charles Sotheran, no.9"