1. The most valuable and useful organs of the body are those which are capable of the greatest dishonor, abuse and corruption. What a snare the wonderful organism of the eye may become when used to read corrupt books or look upon licentious scenes at the theatre, or when used to meet the fascinating gaze of the harlot! What an instrument for depraving the whole man may be found in the matchless powers of the brain, the hand, the ear, the mouth, or the tongue! What potent instruments may these become in accomplishing the ruin of the whole being for time and eternity! 2. In like manner the organ concerning the uses of which I am to speak, has been, and continues to be, made one of the chief instruments of man's immorality, shame, disease, and death. How important to know what the legitimate uses of this member of the body are, and how great the {438} dignity conferred upon us in the possession of this gift. On the human side this gift may be truly said to bring men nearer to the high and solemn relationship of the Creator than any other which they possess. 3. I first deal with the destructive sin of self-abuse. There can be little doubt that vast numbers of boys are guilty of this practice. In many cases the degrading habit has been taught by others, e.g., by elder boys at school, where association largely results in mutual corruption. With others, the means of sensual gratification is found out by personal action; whilst in other cases fallen and depraved men have not hesitated to debauch the minds of mere children by teaching them this debasing practice. 4. Thousands of youths and young men have only to use the looking-glass to see the portrait of one guilty of this loathsome sin. The effects are plainly discernible in the boy's appearance. The face and hands become pale and bloodless. The eye is destitute of its natural fire and lustre. The flesh is soft and flabby, the muscles limp and lacking healthy firmness. In cases where the habit has become confirmed, and where the system has been drained of this vital force, it is seen in positive ugliness, in a pale and cadaverous appearance, slovenly gait, slouching walk, and an impaired memory. 5. It is obvious that if the most vital physical force of a boy's life is being spent through this degrading habit--a habit, be it observed, of rapid growth, great strength, and difficult to break--he must develop badly. In thousands of cases the result is seen in a low stature, contracted chest, weak lungs, and liability to sore throat. Tendency to cold, indigestion, depression, drowsiness, and idleness, are results distinctly traceable to this deadly practice. Pallor of countenance, nervous and rheumatic affections, loss of memory, epilepsy, paralysis, and insanity find their principal predisposing cause in the same shameful waste of life. The want of moral force and strength of mind often observable is youths and young men is largely induced by this destructive and deadly sin.