applying these figures; and this address would be of no value if it did not now and then sound the homiletic note. There is another figure to which I call your attention. It is the figure of the stereopticon lecture. We all go to stereopticon lectures. Many of us are fond of moving pictures. We may say we are not, we may take high ground, but we sneak in to see them. We all like pictures, we are like children in this regard; and when we go to a stereopticon lecture we know that no matter how stupid the lecturer may be, once in two minutes we are going to get a slide. The laws of physics work in our interests, for if the lecturer keeps a slide in the lantern longer than two minutes the heat is likely to break it. Therefore cupidity thwarts the passion for speech. We are all the while attending stereopticon lectures. We all have screens in our minds, and on these screens pictures are passing constantly. Our mental life can be described accurately and vividly in terms of these pictures, these slides of memory and imagination. Then, too, there is a spectator within us looking at the pictures, commenting upon them and having feelings about them. The character of the individual is revealed by the pictures he fondly holds on the screen of his mind. How curiously mental pictures are related to one another, and what strange slides some of them are! Let us examine them for a little. In the first place, it is important to notice that some pictures are very vague. That means they are not well focused. You have been to a stereopticon lecture when the man could not work the lantern and when there were most unseemly altercations between the gentleman on the platform and the unfortunate person who was trying to run the lantern. It is bad enough to have the slides put in upside down; it is bad enough to have them start at the end of the lecture instead of the beginning; it is bad enough to have one of your favorite colored slides drop on the floor, but the worst thing is to have a slide so badly focused that you cannot tell what it is. Do you realize that in these mental panoramas, in these stereopticon exhibitions that we are attending, there are some pictures that are not well focused? Think of the ideas we have that are vague and hazy. Attention is the power which focuses pictures on the screen of the mind. You haven't possession of a picture until you can see it in its clear outlines. What a deal of vagueness there is in the world! How many ideas that, as a friend of mine says, "are fuzzy around the edges." The only mental picture that is to be trusted is the slide which is precise and clear and definite and accurately focused.