Silence is written on the blackboard. Three hours have passed in which over thirty children, barely out of babyhood, have worked incessantly at many different occupations, have moved gracefully and with complete freedom about the room, have changed occupations as often as they wished, have not once quarreled. But now, out of the ordered disorder, comes a marvelous hush. No word is spoken, but one baby after another, glancing the written sign, drops back with closed eyes into a hushed silence in which the whir of bird wings in the garden, the fluttering of casement hangings, the far-away sound of a bell are audible.