Of the XIII-century school of Chartres are the twenty and more lancets in the ambulatory, legend-medallion windows ranking with the best ever made. They repeat some of the themes used by the artists at Chartres, such as the parables of the Prodigal Son, presented by the tanners, and of the Good Samaritan, which latter lancet at Bourges is an exception in having its story begin at the top. Ancient windows are to be read usually from the bottom upward. The first window in the choir aisle, as you enter it from the north, shows the beggar Lazarus despised and suffering on earth, then carried by angels to Abraham's bosom, wherein (in the topmost medallion) he sits cozily ensconsed, but Dives, the bad rich man, is snatched by demons from his earthly scenes of plenty and thrust into hell. The lancet which, at Bourges, is devoted to the Apocalypse, is held to be a subtle commentary on the vision of Patmos. To the fifth large window of the ambulatory, called the New Alliance, the Jesuit fathers, Cahier and Martin, have devoted over a hundred pages--a veritable treatise on symbolism--in their monumental study of the earlier stained glass in this church. "Prophecies in action," our friend Joinville called the prefiguring of the New Law by the Old, so popular during the Middle Ages. New Alliance windows are to be found in various cathedrals--their theme being the substitution of Gentiles for Jews by the merit of the Cross.[136] The guild of butchers was the donor of this abstract doctrinal window of Bourges. The only break in the XIII-century glass of the choir aisle is in the axis chapel, where the windows--of the XVI-century Renaissance--belonged originally to the Sainte-Chapelle of the ducal palace that once existed in Bourges; other windows from the same source have been reset in the cathedral's crypt. The small scenes at the base of each lancet--the signatures as they are called--show that here, as at Chartres, the larger number of these priceless treasures of art were donated by the little people of the Lord--carpenters, weavers, coopers, money changers. A window given by the stonecutters, in the choir aisle of Bourges, is devoted to St. Thomas, the apostle, patron of builders. Bourges and Chartres afford the best opportunity for a more intimate study of the legends and symbols then most popular. Here, as at Chartres, the _Golden Legend_ should be one's inseparable companion. In the high windows of the middle choir the apostles are ranged on one side of Sancta Maria, and the prophets on the other--another of the many contrasts of the Old and New Testaments. The nave's clearstory is chiefly XIII-century grisaille. The XIV-century artists, in their desire for more light, gave up the profound colors of their mosaic-like windows for that coldly elegant phase of the vitrine art, when the use of white was carried to excess and each figure set in its own panel was pictured like a statue with architectural niche and dais.