After carrying out the idea of the church service, the other ideas presented may be introduced, and after the imaginary drive home some simple refreshments can be served, as also mentioned in the chapter of "Suggestions to Parents" on page 17. [Illustration: Oyster and Shell.] MY DEAR YOUNG FRIENDS: I want to speak to you to-day about "Having a good conscience." (I Peter iii: 16.) This is rather a hard subject, but I desire to make it plain by the use of a familiar object. "What's this I have in my hand?" I rather expected that you would say an oyster; but, really it is nothing but an oyster shell. I suppose you have all eaten stewed oysters, or oyster broth. I remember, when a little boy, that one day when we had stewed oysters for supper, I found a little yellow something in my broth. I did not know whether my mother had put it in purposely, or whether it had fallen in by accident; whether I should push it aside of my plate, that it might be thrown with the crumbs to the chickens, or whether I should eat it to discover what it was. [Illustration: Little Crab.] I suppose you have all seen these little animals in your soup, and know that they are called crabs. Now, do you know how the crab comes to be in with the oyster? I will tell you how it is. The oyster lives in the water at the bottom of the bay, and some bright day, when the sun is shining down genial and warm, just the same as in the summer, we open the doors, and sit out on the porch to enjoy the cool of the day; so the oyster opens his shells and lets the cool currents of water move gently through his house. But while lying there with his shells wide open, along comes a great hungry fish. He sees the oyster, but the oyster cannot see him. The oyster cannot see, for he has no eyes. He cannot hear, for he has no ears. Of the five senses which each of us have, hearing, seeing, smelling, tasting and feeling, the oyster can only tell of the presence of his enemy when he feels himself being dragged out of his house, and being quickly swallowed by the fish. But his knowledge of what is happening only comes when it is too late. [Illustration: Fish Going to Eat the Oyster.]