The transepts have the same triforium in their eastern walls as the choir; and here, too, the same kind of construction was ventured on, the groining shafts not being over the clustered column which divides the arches of the aisles round the chevet. When this was done the intention was evidently to erect one bay of sexpartite vaulting next the Crossing, and then a quadripartite bay beyond it. At present both bays are similar--quadripartite--and the clerestory is filled with large traceried windows. The remainder of the church was so much altered in the fourteenth century, that its whole character is now of that period. The north transept façade has in its lower stage two windows of two lights, the traceries of which are precisely similar to those of our own early geometrical style, and there is a very fine rose window above them. This rose is of sixteen divisions, each containing two plain pierced circular openings, but the dividing lines between them being marked, give the whole tracery that effect of radiation from the centre which is so important a feature in the designs of many wheel-windows. All the windows in this façade are richly moulded, and there are well-developed buttresses at its angles, but, unhappily, the gable has been entirely destroyed, and the present termination of the wall is a straight line of brickwork below the eaves of the hipped roof. The question of the original pitch of the roof--always so interesting--is therefore left uncertain and undecided. The clerestory throughout is filled with enormous six-light traceried windows, with transomes, and the double flying buttresses between them are very large, and are finished at the top with a line of traceries below their copings, and with crocketed pinnacles in front. There are two towers at the ends of the aisles, which do not open into them, but only into the nave. The south-west tower has never been completed, but the north-west steeple is a very fine work of the same age as the clerestory of the nave. It has bold buttresses, and a belfry stage lighted by two windows on each side, with tall crocketed pediments above them, and below the battlemented parapet a line of rich sunk tracery. The angles--internal as well as external--are carved with a ball enrichment, which at a distance produces the same effect as our English ball-flower ornament; and, like it, gives an air of richness to the whole work. The buttresses finish above the parapet with crocketed pinnacles, and the parapet with a pointed coping, which somewhat recalls the outline of the Moorish battlement. The whole effect of the steeple, transept, and nave is certainly very noble, and they are marked by an entire absence of any of those foreign peculiarities which usually strike an English eye. The whole might, in fact, be English work of the fourteenth century. The north door of the nave is of grand dimensions, having six statues in niches in each jamb, and others against the buttresses on either side.