vagaries, and they may have to be put into institutions for the feeble-minded, or they may die by inches at home.

Is the Husband to Blame?—If a boy had gonorrhea a number of years before entering the marriage state, was treated for it by a physician, until all symptoms had disappeared and had enjoyed apparent good health in the interim, and had never been told any of the facts regarding probable consequences, is it just to blame him if he infects his wife? It is certain no man would willingly subject his bride to the risk of infection, with all its horrible consequences. These conditions exist as a result of the prudish attitude of society in the past toward all questions affecting sex hygiene. We have not told all the truth to the boy. Whatever knowledge he may have had was gained from companions, or from individuals who knew the garbled facts only. There is of course no excuse for the man who acquires disease after marriage and conveys it to his wife or children. This is a very different situation and one which should merit the severest condemnation and punishment. We are, however, only interested in the boy at present and will not take up the reader's time with a discussion of the "social evil" from this standpoint.

Building a Man.—When the boy is about fifteen years of age certain changes begin to manifest themselves. He grows more rapidly, a growth in which his whole system participates. His bones grow bigger and stronger, his muscles increase in size, even his heart, and lungs, and liver, and his digestive system accommodate themselves to this transformation; the voice changes and hair begins to grow on his face. The mental process also keeps pace with the new order of things. He thinks differently and he sees from a new viewpoint. Nature is making a man out of a boy.

These changes were not understood in the past, but we are beginning to appreciate the reason for this evolutionary process. We have discovered that the cause depends upon certain active changes which take place in the sex organs. About this time the testicles begin to be active. For years these glands have been preparing themselves for this work, so they first grow rapidly, increasing in size until they are about eight times bigger than they were before this time, then they begin to pour into the circulation a secretion which stimulates changes in all other parts of the body and is directly responsible for the wonderful change that is evident in the stature of the boy's body.

This substance or "internal secretion" must not be confused with the semen. The internal secretion is simply the substance which nature employs in the developing process and is responsible for the degree of growth and quality of manhood which the boy manifests. The semen, on the other hand, is the procreative or fertilizing fluid which enables a man to beget offspring. When a boy understands this process it aids him in appreciating the importance of his sex organs and a little thought enables him to understand that if he abuses these organs he will seriously interfere with his own development. This process goes on for a number of years, until the boy reaches maturity. Any act or habit which weakens the quality of this secretion will deplete his powers and render him physically and mentally inefficient. To make a man, nature must be permitted to work in her own way. You cannot improve on her methods nor can you break her laws with impunity.

CHAPTER XIII

THE PARENTS AND THE BOY