178. Again, children must be watched at their games. The more free play of the imagination we discover, and the more change there is, the less cause for concern. But when the same game is frequently repeated according to the same fixed rules, when a species of study is devoted to it in order to attain special proficiency, passions may be generated, such, for instance, as an excessive fondness for playing at cards, even where no stakes are involved. Gambling must be forbidden entirely, and in case compliance with this prohibition is doubtful, obedience must be secured by watchful supervision. To what end shall a teacher watch the games of children? To prevent the bullying of the weak by the strong, to see that unfairness does not creep in, to ward off vulgarity and profanity--these and similar purposes will be in the mind of the teacher. One of the chief functions of play, however, is to cultivate social efficiency. This has two aspects, willingness to coöperate with a group and ability to lead a group. It is necessary that there should be alternation of leadership and coöperation. If one child is allowed to lead all the time, he becomes overbearing; if another is always compelled to follow, he becomes subservient. Each has a one-sided development. Without discouraging unduly natural capacity for leadership, it is well for the teacher quietly to see to it that each child has his chance, both to lead and to follow. Just as the kindergarten utilizes play to simulate the occupations of men, arousing sympathy with them and respect for them, so the school may by proper modification make the numerous group games, in which children delight, a potent means for securing coöperative habits and a general aptitude for social activities. Not a little attention is now paid to the various forms of children’s play. This is especially true of such publications as the _Pedagogical Seminary_, published at Clark University, Worcester, Massachusetts. 179. An excellent means to avert the dangers connected with passionate tendencies is to engage in the acquisition of one of the fine arts, say music or drawing, even though there should be no more than a modicum of talent. The student must be given to understand, however, that he is not to take up the study of several musical instruments at once, nor give himself up to distracting attempts in sundry branches of pictorial representation. On the contrary, he is to strive consistently for proficiency in one definite direction. In the total absence of aptitude we may avail ourselves of preferences of one kind or other, such as fondness for collecting plants or shells, for work in papier-maché, for joinery, for gardening even, etc. Poetical talent, highly desirable in itself, nevertheless demands a solid counterweight in the shape of serious scholarly effort; for the young poet sets up claims that are likely to prove dangerous if he becomes absorbed in them.