3. [Premature and defective development] is a symptom closely allied to the two preceding. When it cannot be traced to such natural causes as overstudy, overwork, lack of exercise, and other influences of a similar nature, it should be charged to self-abuse. The early exercise of the genital organs hastens the attainment of puberty, in many cases, especially when the habit is acquired early, but at the same time saps the vital energies so that the system is unable to manifest that increased energy in growth and development which usually occurs at this period. In consequence, the body remains small, or does not attain that development which it otherwise would. The mind is dwarfed as well as the body. Sometimes the mind suffers more than the body in lack of development, and sometimes the reverse is true. This defective development is shown, in the physical organization of males, in the failure of the voice to increase in volume and depth of tone as it should; in deficient growth of the beard; in failure of the chest to become full and the shoulders broad. The mind and character show the dwarfing influence by failure to develop those qualities which especially distinguish a noble manhood. In the female, defective development is shown by menstrual derangements, by defective growth either in stature, or as shown in unnatural slimness, and in a failure to develop the graces and pleasing character which should distinguish early womanhood. Such signs deserve careful investigation, for they can only result from some powerfully blighting influence.
4. [Sudden change in disposition] is a sign which may well arouse suspicion. If a boy who has previously been cheerful, pleasant, dutiful, and gentle, suddenly becomes morose, cross, peevish, irritable, and disobedient, be sure that some foul influence is at work with him. When a girl, naturally joyous, happy, confiding, and amiable, becomes unaccountably gloomy, sad, fretful, dissatisfied, and unconfiding, be certain that a blight of no insignificant character is resting upon her. Make a careful study of the habits of such children; and if there is no sudden illness to account for the change in their character, it need not require long deliberation to arrive at the true cause, for it will rarely be found to be anything other than solitary indulgence.
5. [Lassitude] is as unnatural for a child as for a young kitten. A healthy child will be active, playful, full of life and animal spirits. If a young child manifests indisposition to activity, a dislike for play, lifelessness and languor, suspect his habits, if there is no other reasonable cause to which to attribute his unnatural want of childish sprightliness.
6. In connection with the preceding symptom will generally be found, instead of that natural brilliance of expression in the eyes and countenance, an unnatural dullness and vacantness altogether foreign to childhood. This is a just ground for suspicion.
7. [Sleeplessness] is another symptom of significance. Sound sleep is natural for childhood; and if sleeplessness be not occasioned by dietetic errors, as eating indigestible food, eating between meals, or eating late suppers, it may justly be a cause for suspicion of evil habits.
8. [Failure of mental capacity] without apparent cause should occasion suspicion of evil practices. When a child who has previously learned readily, mastered his lessons easily, and possessed a retentive memory, shows a manifest decline in these directions, fails to get his lessons, becomes stupid, forgetful, and inattentive, he has probably become the victim of a terrible vice, and is on the road to speedy mental as well as physical ruin. Watch him.
9. [Fickleness] is another evidence of the working of some deteriorating influence, for only a weak mind is fickle.
10. [Untrustworthiness] appearing in a child should attract attention to his habits. If he has suddenly become heedless, listless, and forgetful, so that he cannot be depended upon, though previously not so, lay the blame upon solitary indulgence. This vice has a wonderful influence in developing untruthfulness. A child previously honest, under its baneful influence will soon become an inveterate liar.
11. [Love of solitude] is a very suspicious sign. Children are naturally sociable, almost without exception. They have a natural dread of being alone. When a child habitually seeks seclusion without a sufficient cause, there are good grounds for suspecting him of sinful habits. The barn, the garret, the water-closet, and sometimes secluded places in the woods, are the favorite resorts of masturbators. They should be carefully followed and watched, unobserved.
12. [Bashfulness] is not infrequently dependent upon this cause. It would be far from right to say that every person who is excessively modest or timid is a masturbator; but there is a certain timorousness which seems to arise from a sense of shame or fear of discovery that many victims of this vice exhibit, and which may be distinguished from natural modesty by a little experience. One very common mode of manifestation of this timidity is the inability to look a superior, or any person who is esteemed pure, in the eye. If spoken to, instead of looking directly at the person to whom he addresses an answer, the masturbator looks to one side, or lets his eyes fall upon the ground, seemingly conscious that the eye is a wonderful tell-tale of the secrets of the mind.