But combined with this striving after simplified form there is a sense of space which of itself, as it were, controls everything, producing the poetic illusion of distance. [Illustration: HIROSHIGE. THE BRIDGE AT YEDDO.] The Japanese are masters of the art of enlarging a narrow picture frame to a great expanse, and indicating by a few strokes the distance between foreground and horizon. There is often nothing, or next to nothing, in the wide space, but proximity and distance are so correctly related that all the geological structure is clear, whilst light air is pervasive, giving the eye a vision of boundless perspective. The spur of a headland, the bank of a river, or a cleft between two mountains enables the eye to measure far landscapes. In the presence of their works one dreams, one has the presentiment of infinite distances. They divest objects of their earthiness by bold simplifications, and transform reality into dreamland. It is the spirit of things, their smile, and their intangible perfume which live in these veiled masterpieces which are yet so precise. The bold irregularity of Japanese works, which know nothing of the stiffness of symmetrical composition, contributes much to this impression. Their pictures are never "composed" in our sense of the word, but rather resemble the instantaneous pictures of photographers. A bird is seen to dart past, only half visible, a cluster of trees is a chance slice from the forest, as it is seen out of the window of a railway train whizzing past. Or it is merely the bough of a tree with a bird upon it that stretches into the picture, which is otherwise filled with a fragment of blue sky. Without appearing to concern themselves about it, they compose little poems of grace and freshness, with a frog, a butterfly, and a blossoming apple-branch sprouting out of a vase. They play with beetles, grasshoppers, tortoises, crabs, and fish as did the artists of the Renaissance with Cupids and angels. [Illustration: HIROSHIGE. A HIGH ROAD.]