As already mentioned, the growth of things is one of the most stimulating of childish puzzles. Led no doubt by what others tell him, a child finds that things are in general made bigger by additions from without, and his earliest conception of growth is, I think, that of such addition. Thus, plants are made to grow, that is, swell out, by the rain. The idea that the growth or expansion of animals comes from eating is easily reached by the childish intelligence, and, as we know, nurses and parents have a way of recommending the less attractive sorts of diet by telling children that they will make them grow. The idea that the sun makes us grow, often suggested by parents (who may be ignorant of the fact that growth _is_ more rapid in the summer than in the winter), is probably interpreted by the analogy of an infusion of something into the body. A number of children, I have found, have the queer notion that towards the end of life there is a process of shrinkage. Old people are supposed to become little again. One of the American children referred to, a little girl of three, once said to her mother: "When I am a big girl and you are a little girl I shall whip you just as you whipped me now". At first one is almost disposed to think that this child must have heard of Mr. Anstey's amusing story, _Vice Versâ_. Yet I have collected a number of similar observations. For example, a little boy that I know, when about three and a half years old, used often to say to his mother with perfect seriousness of manner: "When I am big then you will be little, then I will carry you about and dress you and put you to sleep". And one little girl asked about some old person of her acquaintance: "When will she begin to get small?" Another little girl asked her grown-up cousin who was reading to her something about an old woman: "Do people turn back into babies when they get quite old?" Another interesting fact to be noted here is that some children firmly believe that persons after dying and going to heaven will return to earth as little children. An American lady writes to me that two of her boys found their way independently of each other to this idea. Thus one of them speaking of a playmate who had been drowned, and who was now, he was told, in heaven, remarked: "Then God will let him come back and be a baby again".