"There's an intimate and appropriate relation between the ornament and the architecture. Personally I shouldn't care to see just this kind of building in the heart of the city, where you'd have it before your eyes every day. But for the Exposition it's just right. And how fitting it is that the splendid dome should be the chief feature of a building that is really an indoor garden and that the most prominent note of the coloring should be green, nature's favorite and most joyous color. Some joker," he went on, "says that this Exposition is domicidal. He expresses a feeling a good many people have here, that there are too many domes. But I don't agree. The domes make a charming pictorial effect, and they harmonize with the general spirit of the architecture. And as for this dome, it is one of the greatest in the world. See how cleverly the architects, following the spirit of the French Renaissance, have used those ornamental shafts. The only criticism that can be made on them is that they serve no architectural purpose, which ought, of course, always to be intimately associated with use. Instead of growing from the nature of the building, they are put on from outside. Now, in the mosque they were very important in their service. They were the minarets where the Muezzins used to stand in order to call the faithful to prayer. Those minarets up there, carrying on the dome motive, on the corners of the walls of the main palaces are much closer to the old idea." Our talk turned to the subject of domes in general. The idea had come from the bees, from the shape of their hives. Prehistoric man used for a dwelling-place a hut shaped like a hive, as well as an imitation of a bird's nest. In formal architecture, the dome showed itself early. The Greeks knew it; but they didn't use it much. The greatest users of the dome were the Byzantines. It was all dome with them. The first important dome was built in Rome in the second century, to crown the Pantheon. Of all the domes in the world the most interesting historically was St. Peter's, the work of several architects. It was the inspiration of the dome of St. Paul's in London, built by the English architect, Sir Christopher Wren. Architecturally the most interesting of the domes was Brunelleschi's, built for the Florence Cathedral in the fifteenth century, known throughout the world by the Italian name for Cathedral, the Duomo.