The walls, then, would have been less ornate, and more truly beautiful for the absence of profuse ornament, had the Founder's design been carried out. And we can see that even the exquisite roof was meant to be yet more lovely than as it now enraptures the eye. If we look at one of the soaring pilasters and follow up its lines, we shall see that each of the flutings is prolonged in a rib of the fan vaulting. No, not quite each. There is one member which has no such prolongation, but ends meaninglessly at the capital. And this tells us that the pilasters were designed to carry not a fan but a _liern_ vaulting; so called because it appears to be a mesh of intertwined ivy (_lierre_) binding the fabric together. And beautiful as a fan roof is, a liern roof is capable of expressing harmonies of proportion yet more delicate and soul-satisfying. How subtle and exalted these harmonies would have been here we shall best learn if we have the good fortune to gain admission to the range of small side-chapels which flank the fane on either hand, nestling between the mighty buttresses. For in these, while the more western have the fan roof, the eastern and earlier built show liern vaulting of the most delicious character. These side-chapels were intended each to have an altar, at which the Priest to whom it was assigned should say his own Mass daily, while all should meet later before the High Altar to assist at the Collegiate Mass. They are now used for various subsidiary purposes connected with the services. One contains the heating apparatus, another the hydraulic bellows of the organ, while many are mere lumber-rooms. These last are those abutting on the Choir, which have no opening into the Nave, such as those adjoining the ante-chapel possess. Through the gratings we may note some stained glass of an entirely different character from that in the Chapel windows. It is, in fact, of the previous (Fifteenth) Century, and thus older than the Chapel itself. From what earlier building it has been transferred is uncertain. Tradition, for some unknown reason, assigns it to Ramsey Abbey; but it seems more reasonable to suppose that it came from the old church of St. John Zachary hard by, when that was pulled down to make room for the College, and its fragments, as excavation has shown, utilised for levelling the site.