Includes bibliographical references and index.

The Fortieth Anniversary of Capital -- The Theory of Economic Crisis -- The Economic System of Karl Marx (on the Fortieth Anniversary of His Death) -- Simonde de Sismondi and His Economic Theories (a New Interpretation of His Thought) -- A New Theory of Imperialism and the Social Revolution -- Review of Othmar Spann, The Principal Theories of Economics -- Review of Maurice Bourguin, Socialist Systems and Economic Evolution -- The Change in the Original Plan for Marx's Capital and Its Causes -- Notes for 'Response to Criticisms of the Principle Work' -- Letters to Frieda and Paul Mattick -- Gold Production in the Reproduction Schema of Marx and Rosa Luxemburg -- The Value-Price Transformation in Marx and the Problem of Crisis -- Fifty Years of Struggle over Marxism 1883-1932 -- Letters to Leo Löwenthal -- Letters to Max Horkheimer -- Sismondi, Jean Charles Leonard Simonde de (1773-1842) -- Review of Élie Halévy, Sismondi -- Review of Robert Bordaz, Marx's Law of Capitals in Light of Contemporary Events -- Contributions to a Seminar Series on Monopoly Capitalism -- Review of G.N. Clark, Science and Social Welfare in the Age of Newton, and George Sarton, The History of Science and the New Humanism -- Review of Karl Marx and Friedrich Engels, The Civil War in the United States -- Review of F. Grandeau, The Theory of Crises -- Review of Cleona Lewis, America's Stake in International Investments -- Review of Jürgen Kuczynski, Hunger and Work -- Review of L.P. Ayres, Turning Points in Business Cycles -- Marx, Classical Political Economy and the Problem of Dynamics -- Review of Josef A. Schumpeter, Business Cycles: A Theoretical, Historical and Statistical Analysis of the Capitalist Process -- Review of Solomon Fabricant, The Output of Manufacturing Industries 1899-1937 -- Review of Lynn Thorndike, A History of Magic and Experimental Sciences -- The Evolutionist Revolt against Classical Economics -- William Playfair, the Earliest Theorist of Capitalist Development -- Letters to Bill Blake and Christina Stead -- Letters to Walter Braeuer -- Back Matter -- References -- Index and Abbreviations.

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