Strange as are the details of these buttresses, still more strange are the windows of the chapter-house. Since about 1560 the upper cloister of the Filippes has covered the south side of the church so that the south chapter-house window, which now serves as a door, is hidden away in the dark. Still there is light enough to see that in naturalism and in originality it far surpasses anything elsewhere, except the west window of the same chapter-house. Up the jambs grow branches bound round by a broad ribbon. From the spaces between the ribbons there sprout out on either side thick shoots ending in large thistle heads. The top of the opening is low, of complicated curves and fine mouldings, on the outermost of which are cut small curly leaves, but higher up the branches of the jambs with their thistle heads and ribbons with knotted ropes and leaves form a mass of inextricable intricacy, of which little can be seen in the dark except the royal arms. Inside the vault is Gothic and segmental, but the west window is even more strange than the southern; its inner arch is segmental and there are window seats in the thickness of the wall. The jambs have large round complicated bases of many mouldings, some enriched with leaves, some with thistle heads, some with ribbons, and one with curious projections like small elephants' trunks--in short very much what a Western mind might imagine some Hindu capital, reversed, to be like. On the jamb itself and round the head are three upright mouldings held together by carved basket work of cords, and bearing at intervals thistle heads in threes; beyond is another band of leaf-covered carving, and beyond it an upright strip of wavy lines.[117] The opening has a head like that of the other window and is filled with a bronze grille. Still more elaborate and extraordinary is the outside of this window, nor would it be possible to find words to describe it. The jambs are of coral branches, with large round shafts beyond, entirely leaf-covered and budding into thistle heads. Ropes bind them round at the bottom and half-way up great branches are fastened on by chains. At the top are long finials with more chains holding corals on which rest armillary spheres. The head of the window is formed of twisted masses, from which project downwards three large thistle heads. Above this is a great wreath of leaves, hung with two large loops of rope, and twisting up as a sort of cusped ogee trefoil to the royal arms and a large cross of the Order of Christ. A square frame with flamelike border rises to the top of the side finials to enclose a field cut into squares by narrow grooves. Below the window more branches, coral, and ropes knot each other round the head of Ayres just below the rope moulding which runs across from buttress to buttress. Above the top of the opening and about half-way up the whole composition there is an offset, and on it rests a series of disks, set diagonally and strung on another rope. (Fig. 56.)