The two most important centuries of Art are not to be studied here. Of the six pictures, for instance, that profess to be by Giotto, the great head and master of Italian Art, there are but two from which even a faint impression of his style can be gained. There is nothing here which would enable one who had not seen his works in Italy to conceive a true idea of their character and merits. Giotto stands at the threshold of the fourteenth century, breaking open the door, so long barred up, that was to let men into the glories of the unseen world. The friend of Dante, he, as painter, stands side by side with the poet. In the midst of the tumults, the confusion, and violence of those bloody times, his soul rose above the discord of the world, his hand snapped the fetters of authority and tradition, and revealed by line and color the exalted visions of his imagination. Painting, with him, took its inspiration from religious faith, and spent itself in religious service. Whether at Padua, in the little withdrawn Arena chapel, or on the bare mountains at Assisi, in the great church of St. Francis, or at Naples, in the king's chapel, his frescos, though dimmed by the dust of five hundred years, blackened by the smoke of incense, abused by restorers, still show a power of imagination, a spirituality and tenderness of feeling, a simplicity and directness of treatment, which give them place among the most sacred and precious works that Art has yet produced. That quiet, solitary chapel of the Arena at Padua is one of the places most worthy of reverence in Italy; for in the pictures from the lives of the Virgin and the Saviour, that are painted upon its walls, there is the expression of such religious fervor, such faith and love, as Art has rarely or never reached in later times.