Details of fireplaces changed with the passing of Gothic influences, although the olden form was still retained. Classic columns, or less frequently, human figures and grotesques, were substituted for moulded jambs. They commonly supported a carved oak frieze surmounted by a projecting cornice. Such chimney-pieces are by no means rare in Holland and may generally be ascribed to the seventeenth century. One, from Leeuwarden, has already been illustrated on page 129. Another example, from Middelburg, is here given (page 133). The columns are of white marble, but the jambs behind them, together with the bases and corbels, are of slate and are decorated with strapwork patterns. The oak mantel is inlaid with bands and panels of light wood. Tiles of blue, white and yellow cover the back, and border the upright sides of the iron hearth. The chimney-piece at Amsterdam (page 130) is of an unusual pattern. It is situated in the room of the Bricklayers' Guild and is of early seventeenth-century workmanship. The opening is framed of stone. Over the mantel-shelf is a curved pediment with the arms of Amsterdam carved upon it. Fitted to the chimney-breast above is a small oval painted panel enclosed by brickwork. The fireplace from the Westerwold (page 135), now at Groningen, belongs to a later period than the preceding example. A wooden chimney-shelf and pilasters, almost black in colour, support the tapering hood. The back of the fireplace is faced with blue-and-white tiles and red bricks. A protecting fireback rests against it, while a hanger, hooked within the opening, holds the metal pot over the fire. The effect of this fireplace and its accessories, admirably decorative in themselves, is further enhanced by the pure white surrounding walls, and by the parti-coloured floor laid with red and yellow quarries. Cast-iron firebacks have been noticed in the previous illustrations. They were generally used where fires burned on open hearths. The castings are rather light and thin, and were taken from wooden models. They are ornamented with floral and heraldic subjects, or designs suggested by classical myths and bible stories. Of the four examples illustrated on pages 132 and 134, two have armorial bearings, surrounded by rich borders, cast upon them. The one from Leiden is dated 1609, and the other, from Nijmegen, 1650. Both of the remaining specimens from Jisp and Middelburg, are decorated with figure subjects, bordered by fruit and scrolls and flowers. All the work is in rather low relief.