(4) _The Abandonment of Natural Plant Forms in Ornament._--The natural plant forms, which were so universally used in fourteenth century ornament, were abruptly abandoned at the beginning of the fifteenth. Their place is taken, in the diapered backgrounds to the figures, by a curious long serrated leaf, rather like certain kinds of seaweed, which may be seen in Plates XXXVII. and XXXVIII. Borders become less frequent, and when they occur generally consist of a leaf of something the same sort, in white and stain, wrapping round a central stem, sometimes with and sometimes without a coloured background. Later on, the conventional pomegranate pattern is occasionally introduced in vestments and hangings, but it is the exception for coloured garments to be ornamented except with an edging. White garments are sometimes powdered with little devices in yellow stain, as in Plate XXXIX. The edgings to bishops' copes are often of white set with coloured jewels, which are sometimes let into the middle of a piece of glass without its being cut across--a _tour de force_ of glazing very difficult to accomplish and not worth the trouble when done. (5) _Supersession of Other Forms of Grisaille by Regular Quarries._--The "bulged" quarries disappear by the middle of the fourteenth century and the ordinary straight-sided, diamond-shaped quarry is henceforth the rule. By the end of the century the continuous flowing pattern running through them is abandoned also. There had been a tendency towards the end, as may be seen in Plate XXVI., for the pattern to be so disposed that a flower, or other feature, was repeated in the middle of each quarry--in a transitional window at York, which I have referred to elsewhere, there is a continuous pattern with a bird in the centre of each quarry perching upon a branch of it. In the fifteenth century the connecting pattern was left out, and quarries are decorated solely by a little device in the centre of each. Sometimes these are purely conventional, but often they are the occasion for delightful exercise of fancy on the artist's part and form an exception to the general rule of the disuse of natural ornament. Birds, insects, flowers, and leaves are used, as well as heraldic devices and monograms, all expressed very simply in firm pure line work touched with the yellow stain. [Sidenote: The change in material.] [Sidenote: Flashed ruby.]