Introduction, by H. L. C. Jaffé. Ancient and classical art, by P. P. Kahane.--The Middle Ages, by P. Francastel.--The Renaissance, by G. C. Argan.--The seventeenth and eighteenth centuries, by M. Levey.--The nineteenth and twentieth centuries, by H. L. C. Jaffé.--Far Eastern art, by H. Hetl-Kunze.