This is the form in which socialism has reappeared, and it may be described in three words as Revolutionary Socialist Democracy. The movement is divided into two main branches--socialism proper, or collectivism, as it is sometimes called, and anarchism. There are anarchists who are not socialists, but hold strongly by an individualist constitution of property. They are very few, however, and the great mass of the party known by that name in our day, including the Russian Nihilists, are as ardent believers in the economic socialism of Karl Marx as the Social Democrats of Germany themselves. They diverge from the latter on a question of future government; but the differences between the two are only such as the same movement might be expected to exhibit in passing through different media, personal or national. Modern democrats have been long divided into Centralists and Federalists--the one party seeking to give to the democratic republic they contemplate a strongly centralized form of government, and the other preferring to leave the local communes comparatively independent and sovereign, and free, if they choose, to unite themselves in convenient federations. The federal republic has always been the favourite ideal of the Democrats of Spain and of the Communards of Paris, and there is generally a tendency among Federalists, in their impatience of all central authority, to drop the element of federation out of their ideal altogether, and to advocate the form of opinion known as "anarchy"--that is, the abolition of all superior government. It was very natural that this ancient feud among the democrats should appear in the ranks of socialist democracy, and it was equally natural that the Russian Radicals, hating the autocracy of their country and idealizing its rural communes, should become the chief adherents of the federalist and even the anarchic tradition.