This is the period of rapid physical growth wherein he shoots upwards like a cornstalk under the impulse of a July sun. Elongated arms and legs are now as conspicuous as they are unwieldy, and efforts to discipline them are futile. The demand for “long pants,” heretofore quiescent or erupting intermittently, now becomes insistent and finally bursts forth with a fury produced by accumulated repression and fortified by the assertion that “Johnny Jones wears ’em and I’m bigger’n him”--the last word in argumentative conclusiveness. Physical awkwardness and ungainliness, illustrated in his inability to manage his hands and feet easily or gracefully, is due both to the extraordinary and rapid growth of the body and nervous system which takes place at this time, and to his instability of mind, wholly apart from his knowledge of social usages. The psychic disturbances produced by adolescence are still more pronounced. The adolescent is in the throes of discarding the mental concepts of the child and adopting those of the adult. His viewpoint is lifted until his mental and moral horizon broadens to distances heretofore undreamed of and discloses new and strange moral and ethical problems. Old concepts melt away in the light of a newer and stronger vision. Sex-consciousness overwhelms him with its complexity and unrecognized import. The mental concepts of maturity clash with those of childhood. His barque is sailing on uncharted waters, without compass or rudder, while a fierce storm of uncertainty and instability beats about him as he experiences the travail of the birth of a new soul. It is truly the age “when a feller needs a friend”--one who can pilot him safely through the storm of adolescence to the calm of manhood. Truancy reaches its flood tide during adolescence. The instinct of wanderlust appears in response to the promptings of his savage nature, his unease of mind, and his desire to know the unknown in the world about him, and culminates in runaways as a revolt against the exercise of parental authority which he believes to be unnecessarily restrictive or severe. He is now in the formative, fermenting period when he is reaching out to find himself, with indifferent success. There is at this time a noticeable want of continuity of purpose or action. He jumps from one interest to another, evincing little stability of mind. There is want of psychophysical coördination. The transmission between mind and body is faulty; and the imperfect gear of intellect and will frequently fails to engage the cogwheels of morals. The machine works poorly because it is neither complete nor fully equipped. Workmen are still engaged on the unfinished job.