see black, and if I continue so to do long enough the black will disappear to the eye for it was never there. It was a mental defect to say it was there." All of this sort of thinking would never change the contents of the jar. Can beauty take away the black? Let us see. Cast in now a few flowers. The most beautiful things God has made. Will the handful of beauty take the blackness away? This beauty can never do. What will do it? What is the soul's cry? What can take away my sins? Here produce the red bottle. "The blood of Jesus Christ, his son, cleanseth us from all sin." Pour a few drops or more from the red bottle into the jar. Continue to pour it in until the water is made white again. Behold! the blackness of despair has disappeared. The Blood has taken away the sin forever. Before you put the drops of black into the jar, take out a small glass full of the black water and place it down on the table and after the water has been cleared up say "When the blood of Christ takes away our sin, He keeps us when tempted to go black again." To illustrate that truth, pick up the small glass of black water, and say "This represents temptation, and it seeks to get back into the soul again and make it black with sin as before." Pour the contents into the jar but you notice that at once there is a power in the purified water in the jar to resist all temptation and the black does not blacken the water again. The effect of the illustration will be made more striking if you put two or more lighted candles back of the jar. By rehearsal in private, work out the necessary proportions of these chemicals so they will work out correctly when you use them before your audience. Be very careful and keep these chemicals away from the reach of the children as some of them are deadly poisons. =CHAPTER XXI THE GOSPEL COPY BOOK= _Objects used: A small blackboard; a small New Testament; a number of children to write on the blackboard_ THE GOSPEL COPY BOOK