belongs to his own body is probably aided by so-called "double
touch"--the fact that when he touches his own body, as in touching his
foot with the hand, he has two sensations, one in the foot and the
other in the hand. This is not the case when he touches other objects,
and he soon learns the distinction, getting the outlines of his own
body marked out in a vague way. The learning of the localities on his
body which he can not see, however, lags far behind. The movements of
his limbs in active exploration, accompanied by sight, enables him to
build up his knowledge of the world about him. Learning this he soon
falls to "experimenting" with the things of space. Thus he begins to
find out how things fit together, and what their uses are.

On the side of his movements we find him going through a series of
remarkable adaptations to his environment. At the beginning his
movements are largely random discharges, or reflexes of an instinctive
character, such as sucking. Yet in the first month he shows the
beginning of adaptation to the suggestions of his daily life, the
first manifestations of acquired Habit. He learns when and how long he
is expected to sleep, when and how much to eat; he very soon finds out
the peculiar touch and vocal tones of this person or that, and acts
upon these distinctions. He gets to know the meaning of his food
bottle, to understand the routine movements of persons about the
room, and the results of violations of their order. His hat, wraps,
carriage, become in the first half year signals to him of the outdoor
excursion. He no longer bobs his head about when held erect, and
begins to control his natural processes. The remarkable thing about
all these adaptations is that they occur before the infant can in any
sense be said to have a Will; for, as has been said, the fibres of the
brain necessary to voluntary action--in the cortex of the
hemispheres--are not yet formed.

The realization of this extraordinary adaptiveness of the very young
child should save parents many an anxious day and sleepless night.
There is practically nothing more easy than to impress upon the child
whatever habits of daily--and nightly!--routine one wishes to give
him, if he be taken early enough. The only requirements are knowledge
of what is good for him, and then _inviolable regularity_ in
everything that concerns him. Under this treatment he will become as
"obstinate" in being "good" as the opposite so-called indulgent o