If a boy has not been told of this phenomenon he may regard it as a form of self-abuse of which he may have heard and as a consequence he may worry himself sick, as the night emissions continue to occur from time to time. Many pure-minded boys have been rendered miserable, and their efficiency and health have suffered as a result of just such an experience. It is, therefore, proper that they should fully understand the true significance of these occurrences. CAUSES OF NIGHT EMISSIONS.--I have explained how nature makes a man out of a boy. During this maturing process the testicles are very active organs--their function is to manufacture or secrete the fertilizing fluid or semen. This maturing process begins actively, as I stated, about the age of fifteen, though in some boys it frequently occurs earlier, sometimes as early as the twelfth year. When the testicle begins to grow at this time they manufacture more semen than the little pockets can hold, so nature adopts the method of permitting the surplus to escape during sleep. These night emissions, therefore, are perfectly natural losses, and need cause absolutely no distress of mind whatever. The frequency with which they may occur depends altogether upon the temperament of the boy. If the boy is a strong, active, athletic boy, they may not be so frequent in him as they may be in a quiet, studious boy. The system of the athletic boy seems to utilize more of this surplus than the quieter existence of the studious boy calls for. If the discharge does not occur oftener than once every two weeks, it may be regarded as normal and natural. Should they become more frequent than this, the boy should inform his mother or father and the family physician should be consulted. It may be that he is in need of a tonic, or special instructions regarding his method of living and his mode of exercising. Whatever the cause may be, it can be corrected, and the best plan is to give it attention as soon as it is noted that the losses are too frequent.