The same article says of these old works: "It will give an idea of the labour involved, when it is stated the mechanism of the clock occupies a space of about 5 feet cube (125 cubic feet), that the structure is wholly of forged iron; that the numerous wrought-iron wheels, some of which are nearly 2 feet in diameter and about ½ inch thick, besides having to be made truly circular and concentric, had all their teeth cut out and trimmed to workable shape by hand; and that the heavy wrought-iron frames, etc., are fastened entirely by means of mortise, tenon, and colter, no screws being used in the whole structure. The pinions are of the lantern form, with octagonal cheek-plates on square spindles, and the pendulum of modern form beats seconds."
The Inverted Arches.—Undoubtedly the first thing that the stranger notices in Wells Cathedral, and the last that he is likely to forget, is the curious contrivance by which the central tower is supported. Of the three pairs of arches (the upper arch resting inverted upon the lower) which stretch across the nave and each of the transepts, that in the nave is seen at once, and lends a unique character to the whole church. At first these arches give one something of a shock, so unnecessarily frank are they, so excessively sturdy, so very English, we may think. They carry their burden as a great-limbed labourer will carry a child in a crowd, to the great advantage of the burden, and the natural dissatisfaction of the crowd. In fact, they seem to block up the view, and to deform what they do not hide.
That is the first impression, but it does not last for long. Familiarity breeds respect for this simple, strong device, which arrested the fall of the tower in the fourteenth century, and has kept its walls ever since in perfect security, so that the great structure has stood like a rock upon the watery soil of Wells for nearly seven centuries, with its rents and breaks just as they were when the damage was first repaired. The ingenuity, too, of these strange flying buttresses becomes more and more evident; the "ungainly props" are seen to be so worked into the tower they support, that they almost seem like part of the original design of the first builders. One discovers that it is the organ, and not the arches, that really blocks the view, and one marvels that so huge a mass of masonry can look so light as to present, with the great circles in the spandrels where the arches meet, "a kind of pattern of gigantic geometrical tracery." Indeed, I think no one who has been in Wells a week could wish to see the inverted arches removed.
Professor Willis, who had made a most careful investigation of the masonry, thus describes the cause and the construction of the inverted arches (Somerset Proceedings, 1863, i. 21):
"It is evident that the weight of the upper storey of the tower completed in 1321 had produced fearful settlements, the effects of which may still be seen in the triforium arches of the nave, and transepts next to the tower, which are dragged downwards and deformed, partly rebuilt, filled up, and otherwise exhibiting the signs so often seen under central towers, of a thorough repair. The great piers of the tower are cased and connected by a stone framework, which is placed under the north, south, and west tower-arches, but not under the east. This framework consists of a low pointed arch, upon which rests an inverted arch of the same form, so as to produce a figure somewhat resembling a St. Andrew's cross, to use the happy phrase applied by Leland to a similar contrivance introduced for a similar reason [but at a later date] into the central tower arches of Glastonbury." To this description there only needs to be added a mention of the circles which occupy the spandrels, and help to prevent the whole structure from seeming a mere inert mass of masonry. To appreciate the work fully, it should be looked at from some spot, such as the north-east corner of the north transept, whence the three great pairs of arches can be seen together. The effect from here is very fine, especially when the nave is lighted up, and strong shadows are cast. The extreme boldness of the mouldings, the absence of shafts and capitals and of all ornament, give them a primitive vigour, and their great intermingling curves, which contrast so magnificently with the little shafts of the piers beyond, seem more like a part of some great mountain cavern than a mere device of architectural utility.
At the same time as the arches were built, flying buttresses were inserted further to secure the tower, and they can be seen blocking up the triforium and clerestory of those bays, in nave, choir, and transepts, which adjoin it. Other repairs were necessary, for the pier-arches of the same bays in nave and transepts were completely shattered, and had to be replaced by the present ones, the queer-looking capitals of which contrast so oddly with the earlier work. It is instructive, also, to compare the lightness of these fourteenth-century mouldings with the boldness of those, wrought at exactly the same time, of the great inverted arches.
The Tower.—Besides its inverted arches and other signs of repair, the tower is mainly noticeable for its Perpendicular fan-tracery vault of fifteenth-century date. This vault hides the lantern with its arcades, and thus destroys one of the elements of distance and mystery which, before the advent of the more prosaic Perpendicular period, had been a characteristic of Gothic architecture. Nothing else but the desire for uniformity can account for this unjustifiable addition; for there can have been no intention of hanging bells in the lantern when there were already two western bell-towers. The lantern, with its cracked masonry, can be seen during the ascent of the tower (p. [47]).
The shafts of the eastern tower arches were corbelled off at some height from the ground, in order to allow the stalls of the first ritual choir to be set flat against the wall. This shows that Bishop Reginald, when he rebuilt the church, kept to the old Romanesque arrangement and made his choir under the tower, reserving his three bays of what is now the choir for the presbytery—a very dignified arrangement. The square holes for fixing the wooden screen of this earlier choir can still be traced on the aisle walls in a line with the ninth piers of the nave.