The way, then, to deal with the gang instincts is to gratify them. We have already seen that approximately three quarters of our gangs are wont to indulge in hunting, fishing, boating, building camps, going into the woods or to ponds, playing Indians, and the like. This is especially remarkable, as nearly all the gangs of our study come from the cities. In country gangs, these forms of activity are always present. With both city and country boys, they might be made of far greater service than they commonly are. All persons who have camped with boys know that their interest in the outdoor world does not have to be kindled, but rather restrained and guided. There is never any difficulty about filling in the idle time of the gang with these tribal activities, while there is no doubt that the rugged experiences of tramping, mountain climbing, and camp life, of hunting, fishing, and boating, with the almost infinite forms of manual training involved, wherever the boys do their own cooking and camp work, and care for their own rods, guns, and kits, afford one of the best, as it is one of the most natural, forms of manual education. There is, besides, for the city boy, a training in resourcefulness and gumption which he can hardly get elsewhere. Moreover, under the proper sort of men leaders, this rough outdoor life furnishes the very best conditions for instruction in physical and moral hygiene. Somewhat paradoxically, therefore, much of this gang play trains a boy to work. Play is work that one likes. But it is work, and it cultivates the same concentration and persistence as work, and often the same constructive imagination. Boys, moreover, often work hard getting ready to play; and by a little tactful guidance from their elders, they can be led through these play activities to the enjoyment of work, and into sound developmental occupations. Notice how in the Tennis Club, the boys, under the inspiration of Mr. M., the father of one of them, went camping on a lake, and for the sake of going fishing, built themselves their own boat. What better education in skill of hand than that boat-building could be found for a crowd of boys on a summer vacation; what better introduction to the joy of labor!