Marx frees himself later from this inconsistency by ascribing surplus value solely to the operation of the variable part of capital (wage-labour)--a doctrine which he develops with iron logic in his principal work, "Capital." III. THE REVOLUTION OF 1848. The ink had hardly dried on the Communist Manifesto when the February Revolution broke out. The crowing of the Gallic cock soon awoke an echo in the various German States, whilst in Brussels the democrats were attacked and ill-treated by the mob. One of the victims of this attack was Karl Marx, who was, moreover, banished shortly afterwards by the Belgian Government. This action, however, did not cause him any embarrassment, as he was ready in any case to proceed to Paris, whither the Provisional Government of the French Republic had already invited him in the following terms: "Paris, March 1, 1848. "BRAVE AND FAITHFUL MARX, "The soil of the French Republic is a place of refuge for all friends of freedom. Tyranny has banished you; France, the free, opens to you her gates--to you and to all who fight for the holy cause, the fraternal cause of every people. In this sense shall every officer of the French Government understand his duty. _Salut et Fraternite._ FERDINAND FLOCON, Member of the Provisional Government." The stay in Paris was, however, of short duration. Marx and Engels gathered together the members of the League of Communists and procured them the means for returning to Germany to take part in the German revolution. They themselves travelled to the Rhineland and succeeded in getting the establishment of the newspaper planned in Cologne into their hands. On the first of June, 1848, the _Neue Rheinische Zeitung_ appeared for the first time. It goes without saying that the editor was Karl Marx, and among his collaborators were Engels, Freiligrath, Wilhelm Wolff, and Georg Weerth. Occasionally, too, Lassalle sent contributions. It is but rarely given to a daily paper to have such an editorial staff. In the third volume of his "Collected Papers of Marx and Engels," Franz Mehring gives a selection of the articles which appeared in this journal. They are still worth reading. Here are a few examples. After the fall of Vienna he wrote an article concluding with the following words: "With the victory of the 'Red Republic' in Paris the armies from the inmost recesses of every land will be vomited forth upon the boundaries and over them, and the real strength of the combatants will clearly appear. Then we shall remember June and October, and we too shall cry, 'Woe to the vanquished!' The fruitless butcheries which have occurred since those June and October days ... will convince the peoples that there is only one means of shortening, simplifying, and concentrating the torturing death agonies of