It is setting an example that our whole public-school system ought to follow.” The scheme supplies the companionship of those of his own age and the opportunity, under competent supervision, for the exercise of physical, mental, and manual activities which make for his betterment. Its effectiveness lies in the universality of its appeal; it touches the life of every boy regardless of social status or religious affiliations; it gets a moral grip on boys of every phase of temperamental condition; and its moral virus gets under a boy’s hide like a hypodermic injection. The universality of its appeal to boyhood is shown by its membership which is recruited from all ranks of society--from the slum to the palace. It touches the boy on every side of his manifold interests. The best proof that the organization is founded on correct psychologic principles is its popularity with the boys themselves and the splendid caliber of the boys who are graduated from it. Its strong appeal is grounded in its harmony with boy-nature. Without understanding his mental processes or the psychology of his preferences, the boy knows what he likes and what he dislikes. He loves the Boy Scouts because it is an organization which satisfies the cravings of his boy heart. One Scout expressed the thought in these words, “Scouts are always doin’ things and they have the most fun.” Always doin’ things! What a world of psychological truth is crystallized in this youthful statement! It drops the plummet in the wellsprings of truth. Continuous action is the key to his evolution and by it the budding boy blossoms into the mature man. In a word, the entire Scout plan consists of crowding the boy’s life so full of agreeable activities of useful and ethical import that he has no time for noxious things. The busy boy is the best boy. The Scout influence is one of the most powerful factors for good in the boy’s life and is the most potent supplemental agency which has yet been devised for adolescent development. We hear much, in these latter days, of business and industrial efficiency. Experts in this line are able to systematize a business, a railroad, or a factory so that a given amount of labor will produce a maximum of results. Even such unskilled labor as shoveling is susceptible of scientific improvement. An efficiency expert employed by a great corporation decreased the number of movements of ore shovelers one-half, with a corresponding increase in tonnage of ore handled, and without an increase in the expenditure of physical energy.