IN his bibliography Professor Rosenberg refers to German translations of Russian works and to works by German writers upon his subject. The Translator has therefore deemed it better to preserve the German titles. A list of Russian works used by Professor Rosenberg that are available in English has been appended for the reader's convenience.
For the correspondence between Marx and Ruge, cf. Marx-Engels, Gesamtausgabe, herausgegeben vom Marx-Engels-Lenin Institut in Moscow, Erste Abteilung, Band I, Erster Halbband ( Frankfurt a. M. 1927), pp. 557 f.
Marx, "Zur Kritik der Hegelschen Rechtsphilosophie"; cf. ibid., pp. 607 f. Engels letter of 13. xi. 1851; cf. Gesamtausgabe, Dritte Abteilung, Band I ( Berlin, 1929), pp. 148 f.
Marx and the Commune; cf. Karl Korsch, "Revolutionäre Kommune", in the review Die Aktion, 1929, Nos. 5-8, and 1931, Nos. 3-4.
Marxism in general; cf. Karl Korsch, "Marxismus und Philosophie" (2. Auflage, Leipzig, 1930), and his Die materialistische Geschichtsauffassung ( Leipzig, 1929).
All references made here and throughout this work to Lenin writings and speeches are taken from the publication in which they are most readily accessible to German readers, i.e. the great collection of his writings and speeches entitled "Ausgewählte Werke" ( Vienna, Verlag für Literatur und Politik, 1925). Reference is also made to various writings published individually in German translations. The standard collection of Lenin writings in the original Russian has now appeared in a second edition. A part has already been translated into German under the title W. J. Lenin, Sdmtliche Werke ( Vienna and Berlin, Verlag für Literatur und Politik). The Russian and German versions are arranged in chronological order. Hence it is easy for the reader to discover in either edition the passages to which reference is made here.
For Lenin early life cf. N. K. Krupskaya, Erinnerungen an Lenin ( Vienna and Berlin, Verlag für Literatur und Politik, 1929), p. 5, where Lenin widow writes: 'Vladimir Ilyitsh came to Petersburg in the autumn of 1893. Although I did not make his acquaintance in