Doubtless the fact that children normally engage in play and work out of school has seemed to many educators a reason why they should concern themselves in school with things radically different. School time seemed too precious to spend in doing over again what children were sure to do any way. In some social conditions, this reason has weight. In pioneer times, for example, outside occupations gave a definite and valuable intellectual and moral training. Books and everything concerned with them were, on the other hand, rare and difficult of access; they were the only means of outlet from a narrow and crude environment. Wherever such conditions obtain, much may be said in favor of concentrating school activity upon books. The situation is very different, however, in most communities to-day. The kinds of work in which the young can engage, especially in cities, are largely anti-educational. That prevention of child labor is a social duty is evidence on this point. On the other hand, printed matter has been so cheapened and is in such universal circulation, and all the opportunities of intellectual culture have been so multiplied, that the older type of book work is far from having the force it used to possess. But it must not be forgotten that an educational result is a by-product of play and work in most out-of-school conditions. It is incidental, not primary. Consequently the educative growth secured is more or less accidental. Much work shares in the defects of existing industrial society--defects next to fatal to right development. Play tends to reproduce and affirm the crudities, as well as the excellencies, of surrounding adult life. It is the business of the school to set up an environment in which play and work shall be conducted with reference to facilitating desirable mental and moral growth. It is not enough just to introduce plays and games, hand work and manual exercises. Everything depends upon the way in which they are employed. 2. Available Occupations. A bare catalogue of the list of activities which have already found their way into schools indicates what a rich field is at hand. There is work with paper, cardboard, wood, leather, cloth, yarns, clay and sand, and the metals, with and without tools. Processes employed are folding, cutting, pricking, measuring, molding, modeling, pattern-making, heating and cooling, and the operations characteristic of such tools as the hammer, saw, file, etc. Outdoor excursions, gardening, cooking, sewing, printing, book-binding, weaving, painting, drawing, singing, dramatization, story-telling, reading and writing as active pursuits with social aims (not as mere exercises for acquiring skill for future use), in addition to a countless variety of plays and games, designate some of the modes of occupation.