Without any doubt, the Socialist Labour Party, an organization not, however, affiliated to the Labour Party, has contributed more than any other agency to the spread of Syndicalism in England. It describes itself as “a revolutionary political organization seeking to build up a communist movement in this country.” It works “to sweep away the mass of debris which was once known as the parliament institutions,” Those who want to appreciate its activities in these directions ought to follow them in Dr. Miliukov’s _Bolshevism—An International Danger_, and I can personally vouch for and add to his testimony. The Socialist Labour Party was indubitably the power behind the revolutionary propaganda before the war among the miners and the railwaymen, and to some extent among the dockers, and it was responsible for many of the numerous “irritation strikes” in 1911-14 and for the Clyde strikes in 1916. Its disloyal action during the war, through the medium of the workers’ committees and shop steward organizations, is later described. The S.L.P. and the I.W.W. were the original founders of the “Hands Off Russia Committee.” Such has been the revolutionary ferment leavening English and Scottish Labour since 1905—to it we largely owe our present recurrent outbursts of industrial insurrectionism. The Socialist Societies There are, as previously explained, certain Socialist Societies definitely affiliated to the Labour Party; others are unofficially recognized, and there are yet others not recognized, either officially or unofficially, which comprise numerous persons who through their Trade Union or local organizations, or individually, are members of the Labour Party. These advocate brands of Socialism ranging from State Socialism to revolutionary Syndicalism. The Social Democratic Federation