Memoirs of Karl Marx, by Wilhelm Liebknecht. Charles H. Kerr & Company, Chicago. Price 50 cents. Ferdinand Lassalle as a Social Reformer, by Eduard Bernstein. Charles H. Kerr & Company, Chicago. Price $1.00. Frederick Engels: His Life and Work, by Karl Kautsky. Charles H. Kerr & Company, Chicago. Price 10 cents. (_C_) _General Expositions of Socialism_ Principles of Scientific Socialism, by Charles H. Vail. Charles H. Kerr & Company, Chicago. Price $1.00. Collectivism, by Emile Vandervelde. Charles H. Kerr & Company, Chicago. Price 50 cents. Socialism: A Summary and Interpretation of Socialist Principles, by John Spargo. The Macmillan Company, New York. Price $1.25, net. The Socialists--Who They Are and What They Stand For, by John Spargo. Charles H. Kerr & Company, Chicago. Price 50 cents. The Quintessence of Socialism, by Prof. A.E. Schaffle. Charles H. Kerr & Company, Chicago. Price $1.00. This is by an opponent of Socialism, but is much circulated by Socialists as a fair and lucid statement of their principles. (_D_) _The Philosophy of Socialism_ The Communist Manifesto by Karl Marx and Frederick Engels. Charles H. Kerr & Company, Chicago. In paper at 10 cents. Also superior edition in cloth at 50 cents. Evolution, Social and Organic, by A.M. Lewis. Charles H. Kerr & Company, Chicago. Price 50 cents. The Theoretical System of Karl Marx, by L.B. Boudin. Charles H. Kerr & Company, Chicago. Price $1.00. Socialism, Utopian and Scientific, by F. Engels. Charles H. Kerr & Company, Chicago. Price 10 cents in paper, superior edition in cloth 50 cents. Mass and Class, by W.J. Ghent. The Macmillan Company, New York. Price paper 25 cents; cloth $1.25, net. (_E_) _Economics of Socialism_ Marxian Economics, by Ernest Untermann. Charles H. Kerr & Company, Chicago. Price $1.00. Wage Labor and Capital, by Karl Marx. Charles H. Kerr & Company, Chicago. Price 5 cents. Value, Price and Profit, by Karl Marx. Charles H. Kerr & Company, Chicago. Price 50 cents. Capital, by Karl Marx. Charles H. Kerr & Company, Chicago. Two volumes, price $2.00 each. (_F_) _Socialism as Related to Special Questions_ The American Farmer, by A.M. Simons. Charles H. Kerr & Company, Chicago. Price 50 cents. An admirable study of agricultural conditions. Socialism and Anarchism, by George Plechanoff. Charles H. Kerr & Company, Chicago. Price 50 cents. Poverty, by Robert Hunter. The Macmillan Company, New York. Price 25 cents and $1.50. American Pauperism, by Isador Ladoff. Charles H. Kerr & Company, Chicago. Price 50 cents. The Bitter Cry of the Children, by John Spargo. The Macmillan Company, New York. Price $1.50, illustrated. Class Struggles in America, by A.M. Simons. Charles H. Kerr & Company, Chicago. Price 50 cents. A notable application of Socialist theory to American history. Underfed School Children, the Problem and the Remedy. By John Spargo. Charles H. Kerr & Company, Chicago. Price 10 cents.