The factors of the problem, then, to be considered in the method are: First, Christian Manhood; second, the fact that there are distinct and separate stages of growth in a boy's development, each stage having its own well-defined steps of growth; and third, the selection of existing boy organization activities to meet the need and produce the aim or desired result. By way of illustration, let us consider a group of boys just past their twelfth year. All their physical, social, mental, and spiritual needs are to be met. The boys are just adolescent and their outlook because of that is altruistic. They have reached the "ganging" period, and so must have some form of organization. What organizations can be used to lead them into Christian manhood between the twelfth and fifteenth year? There are the Knights of King Arthur, the Boy Scouts, the Junior Brotherhood, the Christian Endeavor, and the Sunday School Bible Class. There are others--hosts of them--but these widely known forms will suit the purpose. For physical purposes we have the Scouts, for social purposes the Scouts, Knights, and the Bible Class; for mental purposes the Knights, and for spiritual purposes the Knights, Brotherhood, Endeavor, and the Bible Class. To see a boy get his own full development under this plan he must needs belong to at least five organizations; and _the principle of association among boys is not gangs but the gang_. However, much can be done under difficulties. The Scouts will afford free, physical, outdoor expression, without which there is no boy. The Knights will furnish mental ideals and objectives; for the Knights of King Arthur is the mental expression of the Boy Scouts and the Boy Scouts is the physical expression of the Knights of King Arthur. Both of them, with the Bible Class group, will furnish social stimulus and the Bible study, and the more or less valuable devotional expression of the Endeavor and Brotherhood will take care of the spiritual. In using an organization, a clearly defined idea of the end sought should always be in view. =Efficiency= In all church work for boys, efficiency should be sought. _It should also be kept in mind that it is church work for boys_.