_62d week._--Playing with his own fingers (at which he looks with a protracted gaze) as if he would pull them off. Again, one hand is pressed down by the other flat upon the table until it hurts, as if the hand were a wholly foreign plaything, and it is still looked at wonderingly sometimes. From this time forth the gazing at the parts of his own body was perceptibly lessened. The child _knew_ them as to their form, and gradually learned to distinguish them from foreign objects as parts belonging to him; but in this he by no means arrives at the point of considering, "The hand is mine, the thing seized is not," or "The leg belongs to me," and the like; but because all the visible parts of the child's body, on account of very frequently repeated observation, no longer excite the optic center so strongly and therefore appear no longer interesting--because the experiences of touch combined with visual perceptions always recur in the same manner--the child has gradually become accustomed to them and _overlooks_ them when making use of his hands and feet. He no longer represents them to himself separately, as he did before, whereas every new object felt, seen, or heard, is very interesting to him and is separately represented in idea. Thus arises the definite separation of object and subject in the child's intellect. In the beginning the child is new to himself, namely, to the representational apparatus that gets its development only after birth; later, after he has become acquainted with himself, after he, namely, his body, has lost the charm of novelty for him, i. e., for the representational apparatus in his brain, a dim feeling of the "I" exists, and by means of further abstraction the concept of the "I" is formed. The progress of the intellect in the act of _looking into the mirror_ confirms this conclusion drawn from the above observations. For the behavior of the child toward his image in the glass shows unmistakably the gradual growth of the consciousness of self out of a condition in which objective and subjective changes are not yet distinguished from each other. Among the subjective changes is, without doubt, the smiling at the image in the tenth week, which was probably occasioned merely by the brightness (Sigismund). Another boy in the twenty-seventh week looked at himself in the glass with a smile (Sigismund).