Such was the aspect of the Sistine Chapel when Michelangelo began his great work. Perugino's three frescoes on the west wall were afterwards demolished to make room for his Last Judgment. The two frescoes on the east wall are now poor pictures by very inferior masters; but the twelve Scripture histories and Botticelli's twenty-eight Popes remain from the last years of the fifteenth century. Taken in their aggregate, the wall-paintings I have described afforded a fair sample of Umbrian and Tuscan art in its middle or _quattrocento_ age of evolution. It remained for Buonarroti to cover the vault and the whole western end with masterpieces displaying what Vasari called the "modern" style in its most sublime and imposing manifestation. At the same time he closed the cycle of the figurative arts, and rendered any further progress on the same lines impossible. The growth which began with Niccolò of Pisa and with Cimabue, which advanced through Giotto and his school, Perugino and Pinturicchio, Piero della Francesca and Signorelli, Fra Angelico and Benozzo Gozzoli, the Ghirlandajo brothers, the Lippi and Botticelli, effloresced in Michelangelo, leaving nothing for aftercomers but manneristic imitation. II Michelangelo, instinctively and on principle, reacted against the decorative methods of the fifteenth century. If he had to paint a biblical or mythological subject, he avoided landscapes, trees, flowers, birds, beasts, and subordinate groups of figures. He eschewed the arabesques, the labyrinths of foliage and fruit enclosing pictured panels, the candelabra and gay bands of variegated patterns, which enabled a _quattrocento_ painter, like Gozzoli or Pinturicchio, to produce brilliant and harmonious general effects at a small expenditure of intellectual energy. Where the human body struck the keynote of the music in a work of art, he judged that such simple adjuncts and naïve concessions to the pleasure of the eye should be avoided. An architectural foundation for the plastic forms to rest on, as plain in structure and as grandiose in line as could be fashioned, must suffice. These principles he put immediately to the test in his first decorative undertaking. For the vault of the Sistine he designed a mighty architectural framework in the form of a hypaethral temple, suspended in the air on jutting pilasters, with bold cornices, projecting brackets, and ribbed arches flung across the void of heaven. Since the whole of this ideal building was painted upon plaster, its inconsequence, want of support, and disconnection from the ground-plan of the chapel do not strike the mind. It is felt to be a mere basis for the display of pictorial art, the theatre for a thousand shapes of dignity and beauty.