As we have seen, the crowd mind as such wills to dominate. Society is made up of struggle groups, or organized crowds, each seeking the opportunity to make its catchwords realities and to establish itself in the position of social control. The social order is always held intact by some particular crowd which happens to be dominant. A revolution occurs when a new crowd pushes the old one out and itself climbs into the saddle. When the new crowd is only another faction within the existing dominant crowd, like one of our established political parties, the succession will be accomplished without resort to violence, since both elements of the ruling crowd recognize the rules of the game. It will also not result in far-reaching social changes for the same reason. A true revolution occurs when the difference between the dominant crowd and the one which supplants it is so great as to produce a general social upheaval. The Reformation, the French Revolution, and the "Bolshevist" _coup d'etat_ in Russia, all were of this nature. A new social leadership was established and secured by a change in each case in the personnel of the ownership of such property as would give the owners the desired control. In the first case there was a transfer of property in the church estates, either to the local congregations, or the state, or the denomination. In the second case the property transferred was property in land, and with the Russian revolutionists landed property was given to the peasants and vested capital turned over to the control of industrial workers. Those who lay all emphasis on this transfer of property naturally see only economic causes in revolutionary movements. Economics, however, is not a science of impersonal things. It treats rather of men's relations to things, and hence to one another. It has to do with valuations and principles of exchange and ownership, all of which need psychological restatement. The transfer of the ownership of property in times of revolution to a new class is not an end, it is a means to a new crowd's social dominance. The doctrines, ideals, and principles believed by the revolutionary crowd also serve this end of securing its dominance, as do the social changes which it effects, once in power.