The Cathedral of Orvieto will illustrate these remarks. Its design is very simple. It consists of a parallelogram, from which three chapels of equal size project, one at the east end, and one at the north and south. The windows are small and narrow, the columns round, and the roof displays none of that intricate groining we find in English churches. The beauty of the interior depends on surface decoration, on marble statues, woodwork, and fresco-paintings. Outside, there is the same simplicity of design, the same elaborated local ornament. The sides of the Cathedral are austere, their narrow windows cutting horizontal lines of black and white marble. But the façade is a triumph of decorative art. It is strictly what Fergusson has styled a “frontispiece”; for it bears no relation whatever to the construction of the building. Its three gables rise high above the aisles. Its pinnacles and parapets and turrets are stuck on to look agreeable. It is a screen such as might be completed or left unfinished at will by the architect. Finished as it is, the façade of Orvieto is a wilderness of beauties. Its pure white marble has been mellowed by time to a rich golden hue, in which are set mosaics shining like gems or pictures of enamel. A statue stands on every pinnacle; each pillar has a different design; round some of them are woven wreaths of vine and ivy; acanthus leaves curl over the capitals, making nests for singing-birds or Cupids; the doorways are a labyrinth of intricate designs, in which the utmost elegance of form is made more beautiful by incrustations of precious agates and Alexandrine glasswork. On every square inch of this wonderful façade have been lavished invention, skill, and precious material. But its chief interest centres in the sculptures executed by Giovanni and Andrea, sons and pupils of Nicola Pisano. The names of these three men mark an era in the history of art. They first rescued Italian sculpture from the grotesqueness of the Lombard and the monotony of the Byzantine styles. Sculpture takes the lead of all the arts. And Nicola Pisano, before Cimabue, before Duccio, even before Dante, opened the gates of beauty, which for a thousand years had been shut up and overgrown with weeds. As Dante invoked the influence of Virgil when he began to write his mediæval poem, and made a heathen bard his hierophant in Christian mysteries, just so did Nicola Pisano draw inspiration from a Greek sarcophagus, which had been cast upon the shore at Pisa. He studied the bas-relief of Phædra and Hippolytus, which may still be seen upon the tomb of Countess Beatrice, in the Campo Santo, and so learned by heart the beauty of its lines, and the dignity expressed in its figures, that in all his subsequent works we trace the elevated tranquillity of Greek sculpture. This imitation never degenerated into servile copying; nor, on the other hand, did Nicola attain the perfect grace of an Athenian artist. He remained a