There was a considerable clamor among the students; some were talking, some laughing. In the center of the room stood a pedometer. The behavior of the two children was almost identical. They were sitting apart quietly, working at the lacing frames which they had gone spontaneously to fetch from a neighboring room; they did not look up at the noise, nor join in the laughter. Their attitude was that of persons at work and anxious not to lose any time. When invited by a single gesture to come and be measured, they obeyed in a wonderful manner, leaving off work at once, and moving with smiles, as if fascinated; they evidently felt pleasure in obeying, and an internal delight which came from the consciousness of being able to work, and of being ready to leave something that they liked doing, at a summons to something of a higher order. They arranged themselves very carefully on the pedometer to be measured; when any modification was necessary in the position of the body, it sufficed to murmur a word in their ears and the almost imperceptible movement required was made with the utmost exactitude; they could control their voluntary movements and direct them; they were able to translate the words they heard into actions: _this enabled them_ to obey, and this constituted for them a fascinating internal conquest. When the measuring was over, nothing was said; they waited expectantly for a moment, then gave an intelligent glance and a smile, which was, as it were, their greeting; they had understood, and they returned voluntarily to their corner to take up their frames and resume their work. Presently they were wanted again, and the same actions were repeated. When we think that children of their age (about four and a half), when left to themselves, will roam about, upsetting objects almost unconsciously, and requiring either some one to submit to their caprices, or to call them roughly to order, we shall recognize the internal perfection achieved in these two little ones, who have arrived at that stage of development in which work has become a _habit_, and obedience a fascinating acquisition. The anthropometric measurements had shown that one of the children, _O_, was normal in measurement (weight, stature, length of torso) and the other, _A_, below the normal measurements. Here are some notes made by the teacher on the conduct of these two children when they were in the state of disorder, or undisciplined: _O_: violent, turbulent, spiteful to his companions, never applies to anything, but looks on at what the others are doing and then interrupts them; or listens to the individual lessons given by the teacher with a scornful and cynical expression. The father of the child says that at home he is violent, overbearing, and intractable. _A_: is quiet. But he has almost a mania for spying on his companions, and pointing out to the teacher every little action that might be considered wrong or incorrect.