During this earlier period there is little aggression and little propensity for antagonism.

The transition from this peaceable temper to the predaceous, and in extreme cases malignant, mischievousness of the boy is a gradual one, and it is accomplished with more completeness, covering a larger range of the individual's aptitudes, in some cases than in others.

In the earlier stage of his growth, the child, whether boy or girl, shows less of initiative and aggressive self-assertion and less of an inclination to isolate himself and his interests from the domestic group in which he lives, and he shows more of sensitiveness to rebuke, bashfulness, timidity, and the need of friendly human contact.

In the common run of cases this early temperament passes, by a gradual but somewhat rapid obsolescence of the infantile features, into the temperament of the boy proper; though there are also cases where the predaceous futures of boy life do not emerge at all, or at the most emerge in but a slight and obscure degree.
In girls the transition to the predaceous stage is seldom accomplished with the same degree of completeness as in boys; and in a relatively large proportion of cases it is scarcely undergone at all.

In such cases the transition from infancy to adolescence and maturity is a gradual and unbroken process of the shifting of interest from infantile purposes and aptitudes to the purposes, functions, and relations of adult life.