themselves; and a similar process is undoubtedly taking place among the idle rich who occupy an analogous position in the United States.
But it is the desire of eugenics to raise the average ability of the whole population, as well as to encourage the production of leaders. To fulfill this desire, it is obvious that one of the necessary means is to extend to all desirable classes that range of choice which is now possessed only by those near the top of the social ladder. It is hardly necessary to urge young people to widen the range of their acquaintance, for they will do it without urging if the opportunity is presented to them. It is highly necessary for parents, and for organizations and municipalities, deliberately to seek to further every means which will bring unmarried young people together under proper supervision. Social workers have already perceived the need of institutional as well as municipal action on these lines, although they have not in every case recognized the eugenic aspect, and from their efforts it is probable that suitable institutions, such as social centers and recreation piers, and municipal dance halls, will be greatly multiplied.