"Why, 'the Princess Prue,' of course." "Do seeds from the same bush make the different roses?" asked Davy. "Yes, and from the same pod." "But are the seeds just alike?" "They are so far as anybody can see, but when they come to grow and bloom, one may be a white rose, another pink, and another red. Some may be dwarfs in size, and others giants. All may have the same sun, the same water, the same air, and the same soil. It is only the tiny little difference which we cannot see that makes the great difference in the plant, by and by." Davy was thinking very hard. Soon he said: "And where do sweet and sour and all the pepper and mustard and horseradish tastes come from? The air and the water don't taste. I never tasted much dirt, but I don't believe any of it would bite like a red pepper." [Illustration: "GARDENERS OFTEN TAKE A ROSE OF ONE KIND AND SHAKE IT GENTLY OVER A ROSE OF ANOTHER KIND"] The Chief Gardener laughed. "No, Davy, I don't believe it would," he said. "And I think the sun is the only one who could answer your question. It is a chemistry which no one of this world has been able to explain. Chemistry is a magic which you will understand by and by, and you will know then that the sun is the greatest of all chemists. Suppose we go down into your gardens and see what he is doing there." [Illustration: "SOMETIMES THE GARDENER TAKES UP THE POLLEN ON A SOFT BRUSH AND LAYS IT GENTLY ON THE STIGMA OF ANOTHER ROSE"] They all went down the little steps that led to the Chief Gardener's enclosure, where Prue and Davy had their gardens, side by side with his. There just as they entered was a great mass of morning-glory vines that every morning were covered with a splendor of purple, and pink, and white, and blue, and just beyond these was a mass of dianthus pinks of every hue and shade. Bachelor-buttons, petunias, and verbenas were all there, too, besides Prue's sweet-pease by the fence, and her alyssum and mignonette. Then came Davy's things, all fresh and growing, and beyond these the Chief Gardener had ever so many things, from beets to beans, from parsley to parsnips, from carrots to corn. In one small corner by the strawberry-bed there grew a little bed of pepper plants, and near-by a row of tomatoes. The Chief Gardener stopped in the midst of all these things.