THE INTERNATIONAL INSTITUTE OF SOCIOLOGY.

The principal manifestation of the vitality of the Institut international de Sociologie was the holding of congresses from 1894 to 1912, thirteen in eighteen years, bringing together a small number of participants, it is true, but most of them authors of many works on such subjects as historical materialism, the relationship between sociology and psychology, social struggle, social solidarity, and progress. Today the Institut international de Sociologie is in reality nothing more than the central nucleus, or the permanent organ of the Federation, which as a result of its energy and perseverance is realizing, with a growing success, manifests at the last congress in Brussels in 1936, a program of international intellectual cooperation in sociological studies. The Federation permits all groups normally organized for the investigation of the laws or constant relations among all kinds of social phenomena, for the verification of sociological hypotheses constructed without dogmatism, without prejudice, to come into direct contact through the intermediary of L'Institut international de Sociologic, through its publications, and its congresses.