Redgrave lays down an excellent maxim for general guidance to designers in arts other than legitimate picture making. He says: "The picture must be independent of the material, the thought alone should govern it; whereas in decoration the material must be one of the suggestors of the thought, its use must govern the design." This shows the difference between decoration and pictorial art. One hears a great deal of the "conventional" in modern art talk. Just what this means, few people who have the word in their vocabularies really know. As Professor Moore defined it once, it does not apply to an arbitrary theoretical system at all, but is instinctive. It means obedience to the limits under which the artist works. The really greatest art craftsmen of all have been those who have recognized the limitations of the material which they employed. Some of the cleverest have been beguiled by the fascination of overcoming obstacles, into trying to make iron do the things appropriate only to wood, or to force cast bronze into the similitude of a picture, or to discount all the credit due to a fine piece of embroidery by trying to make it appear like a painting. But these are the exotics; they are the craftsmen who have been led astray by a false impulse, who respect difficulty more than appropriateness, war rather than peace! No elaborate and tortured piece of Cellini's work can compare with the dignified glory of the Pala d'Oro; Ghiberti's gates in Florence, though a marvellous _tour de force_, are not so satisfying as the great corona candelabrum of Hildesheim. As a rule, we shall find that mediaeval craftsmen were better artists than those of the Renaissance, for with facility in the use of material, comes always the temptation to make it imitate some other material, thus losing its individuality by a contortion which may be curious and interesting, but out of place. We all enjoy seeing acrobats on the stage, but it would be painful to see them curling in and out of our drawing-room chairs. The true spirit which the Arts and Crafts is trying to inculcate was found in Florence when the great artists turned their attention to the manipulation of objects of daily use, Benvenuto Cellini being willing to make salt-cellars, and Sansovino to work on inkstands, and Donatello on picture frames, while Pollajuolo made candlesticks. The more our leading artists realize the need of their attention in the minor arts, the more nearly shall we attain to a genuine alliance between the arts and the crafts.