"The baking serves to fix the colors firmly in their cells, as the fire is hot enough to melt the glass slightly and fuse it to a perfect union with the body of the bowl. For common work, a single coating of enamel and a single baking are sufficient, but for the finer grades this will not answer. Another coating of colors is laid on, and perhaps a third or a fourth, and after each application the bowl is baked again. When this process is finished, the surface is rough, and the bowl is not anything like what we see it now. It must be polished smooth, and, with this object, it is ground and rubbed, first with coarse stones, then with finer ones, then with emery, and finally with powdered charcoal. In this way the bowl was brought to the condition in which you will find it, if it comes all right and uninjured from the box. A good many pieces of this ware are broken in the handling, and consequently they add to the price of those that come out unharmed. [Illustration: MODERN JAPANESE CLOISONNÉ ON METAL.] "The fine threads of brass that run through the surface give a very pretty appearance to the work, as they look like gold, and are perfectly even with the rest of what has been laid on to the original bowl. In some of the most expensive of the enamel-work the threads are of fine gold instead of brass; but there is no particular advantage in having them of gold, as the brass answers all purposes and the gold serves as a temptation to robbers. There is an endless variety of designs in _cloisonné_ work, and you see so many pretty things in porcelain that you are at a loss what to choose. [Illustration: JAPANESE METAL CLOISONNÉ.] "But the artists do not confine themselves to porcelain; they do a great deal of enamelling on metal, and some of their productions in this way are quite as interesting as their enamelling on porcelain. They did not invent the art, so it is said, but borrowed it from the Chinese, who had in their turn borrowed it from Persia or some other of the Central Asiatic countries. Some of the Japanese artists claim that the art was borrowed from their country, but the most of those who have studied the subject say that this claim is incorrect. But no matter who invented the process, it is very beautiful and is of great antiquity; it is capable of a great many variations, and, although it has been in use for centuries, hardly a year passes without some improvements in it. In making the metal enamels the strips of brass are soldered to the surface and the cavities are filled up with the liquid coloring. The whole is then baked as in the porcelain process, and the surface of the work is carefully polished until all the lines are fully developed and the completed article shines like glass. [Illustration: CHINESE PORCELAIN CLOISONNÉ.]