_Case D._--This boy came to me at thirteen. He was always a conscientious and amiable boy, but was nervous and dull. By fifteen his dullness had increased, and he complained of brain-strain and poorness of memory. Finally he began to develop St. Vitus's dance. I sent him to our school doctor, who returned him with a note saying that his condition was serious--that he must stop all work, &c. &c. I was in my study when the lad came back, and I at once told him what was the matter. He frankly admitted frequent self-abuse, which he had learned from an elder brother. He had not the least suspicion that the habit was injurious; but was very apprehensive about his future until I reassured him. He wanted me to write at once and warn a younger brother who had fallen into the habit. By great effort he got himself rapidly under control. His nervous twitchings disappeared, his vitality improved, the brain-fag gradually ceased; and when he left, eighteen months later, he was fairly normal. His improvement continued afterwards, and he is now a successful man of business and a married man. _Case E._--This boy entered at twelve. He was very weak physically and highly nervous--owing, his people thought, to severe bullying at a previous school. He was an able boy, of literary and artistic tastes, and almost painfully conscientious. He was very shy; always thought that he was despised by other boys; and was a duffer at games, which he avoided to the utmost. With my present experience I should have known him to be a victim of self-abuse. Then, I did not suspect him; and it was not until he was leaving at eighteen for the University that we talked the matter over, on his initiative. Then I found that he had been bullied into impurity at eleven, and was now a helpless victim. After two years at the University he wrote me that, though the temptation now came less frequently, he seemed absolutely powerless when it did come; that he despised himself so much that the impulse to suicide often haunted him; but that the cowardice which had kept him from games at school would probably prevent his taking his life. With the assistance of an intense and devoted religious life he gradually began to gain self-mastery. It is some years now since he has mentioned the subject to me. These are merely specimen cases. Cases A, B, and C illustrate my assertions that parents are wonderfully blind; Cases B and E, that quite exceptional refinement in a boy gives no protection from temptation to impurity; Case D, that a boy, even in an extreme case, does not know that the habit is injurious. In respect of their severity, C, D, and E are not normal but extreme cases. The reader must not imagine that boys ordinarily suffer as much as these did. CHAPTER II. PREVALENCE OF IMPURITY AMONG BOYS: THE OPINIONS OF CANON LYTTELTON, DR. DUKES, AND OTHERS.