since the invention of printing, have taken its place; partly in glass-painting; partly in rude sculpture on the outsides of buildings; partly in mosaics; and partly in the frescoes and tempera pictures which, in the fourteenth century, formed the link between this powerful, because imperfect, religious art, and the impotent perfection which succeeded it. SECTION LXIII. But of all these branches the most important are the inlaying and mosaic of the twelfth and thirteenth centuries, represented in a central manner by these mosaics of St. Mark's. Missal-painting could not, from its minuteness, produce the same sublime impressions, and frequently merged itself in mere ornamentation of the page. Modern book-illustration has been so little skillful as hardly to be worth naming. Sculpture, though in some positions it becomes of great importance, has always a tendency to lose itself in architectural effect; and was probably seldom deciphered, in all its parts, by the common people, still less the traditions annealed in the purple burning of the painted window. Finally, tempera pictures and frescoes were often of limited size or of feeble color. But the great mosaics of the twelfth and thirteenth centuries covered the walls and roofs of the churches with inevitable lustre; they could not be ignored or escaped from; their size rendered them majestic, their distance mysterious, their color attractive. They did not pass into confused or inferior decorations; neither were they adorned with any evidences of skill or science, such as might withdraw the attention from their subjects. They were before the eyes of the devotee at every interval of his worship; vast shadowings forth of scenes to whose realization he looked forward, or of spirits whose presence he invoked. And the man must be little capable of receiving a religious impression of any kind, who, to this day, does not acknowledge some feeling of awe, as he looks up at the pale countenances and ghastly forms which haunt the dark roofs of the Baptisteries of Parma and Florence, or remains altogether untouched by the majesty of the colossal images of apostles, and of Him who sent apostles, that look down from the darkening gold of the domes of Venice and Pisa. SECTION LXIV. I shall, in a future portion of this work, endeavor to discover what probabilities there are of our being able to use this kind of art in modern churches; but at present it remains for us to follow out the connection of the subjects represented in St. Mark's so as to fulfil our immediate object, and form an adequate conception of the feelings of its builders, and of its uses to those for whom it was built.