1936. - 474 s. Released in January 1929 . The Ninth Lenin Collection, in which Lenin's three notebooks containing Hegel's Science of Logic were printed, began publication of the so-called "Philosophical notebooks" of Lenin. "The Lenin Collection" XII contains all other materials of this kind, among those that are in the archive of the Marx-Engels-Lenin Institute .. Thus, this collection concludes the publication of Lenin's philosophical notes .. All notebooks stored at the Institute with notes, extracts, notes of Lenin on philosophy issues are now available to study everyone who is interested in the theory of Marxism.