restored--nineteen only of the sixty-seven subjects are original--is perhaps the most interesting, for among the nineteen may be seen St. Louis figured by the contemporary artist: receiving the relics at Sens; assisting to carry the relics, barefoot; taking part at the exposition of the relics with his queen and his mother; receiving an embassy from the Emperor Baldwin; carrying the Byzantine cross which holds a portion of the true cross. Another of the original panels contains a representation of the Cite with the enveloping arms of the Seine. The rose window at the west end is obviously later, and dates from the fifteenth century. In olden times the lower part of the central window of the apse was made of white glass that the people massed in the courtyard below might behold the relics as St. Louis and his successors, after exhibiting them to the privileged congregation in the chapel, turned round to show them. Against the south wall of the nave is a little oratory with a squint through which it is said Louis XI. used to venerate the relics unobserved. We step out from the west door of the upper chapel to examine the more richly decorated upper portal. The carvings are all modern and, except such as were suggested by traces of the old work, are copied from the west front of Notre Dame and other churches. Many a solemn and many a strange scene have been enacted in this royal oratory; the strangest of all perhaps when Charles V. of France, the Holy Roman Emperor Charles IV., and his son Wenceslaus, king of the Romans, in the _role_ of the three Holy Kings, came to venerate the relics and laid oblations before the shrine. Before we turn away from the building we should observe on the west facade above the rose window wherein the architect has literally sported with the difficulties of construction in stone a charming design of fleurs-de-lys framed by quatrefoils along the balustrade; the central design is an R. (rex), crowned by two angels. The present spire is a fourth erection. The second, which replaced the original spire in 1383, was one of the wonders of Paris, and fell a victim to fire in 1630. A third, erected by Louis XIII., was demolished in 1791, and in 1853 Lassus, Viollet le Duc's principal colleague in the restoration of the chapel, designed the graceful fleche we see to-day.