Page:Ruskin - The Seven Lamps of Architecture.djvu/68

40 assumptions of it,—the introduction of members which should have, or profess to have, a duty, and have none. One of the most general instances of this will be found in the form of the flying buttress in late Gothic. The use of that member is, of course, to convey support from one pier to another when the plan of the building renders it necessary or desirable that the supporting masses should be divided into groups; the most frequent necessity of this kind arising from the intermediate range of chapels or aisles between the nave or choir walls and their supporting piers. The natural, healthy, and beautiful arrangement is that of a steeply sloping bar of stone, sustained by an arch with its spandril carried farthest down on the lowest side, and dying into the vertical of the outer pier; that pier being, of course, not square, but rather a piece of wall set at right angles to the supported walls, and, if need be, crowned by a pinnacle to give it greater weight. The whole arrangement is exquisitely carried out in the choir of Beauvais. In later Gothic the pinnacle became gradually a decorative member, and was used in all places merely for the sake of its beauty. There is no objection to this; it is just as lawful to build a pinnacle for its beauty as a tower; but also the butress became a decorative member; and was used, first, where it was not wanted, and, secondly, in forms in which it could be of no use, becoming a mere tie, not between the pier and wall, but between the wall and the top of the decorative pinnacle, thus attaching itself to the very point where its thrust, if it made any, could not be resisted. The most flagrant instance of this barbarism that I remember (though it prevails partially in all the spires of the Netherlands) is the lantern of St Ouen at Rouen, where the pierced buttress, having an ogee curve, looks about as much calculated to bear a thrust as a switch of willow; and the pinnacles, huge and richly decorated, have evidently no work to do whatsoever, but stand round the central tower, like four