In order that the windows of the aisles might be "beautified with glass, admirably well performed by the exquisite hand of Abraham Ling, a Dutchman, an. 1634," Brian Duppa and his chapter altered the whilom Perpendicular windows, sawing away "the fine architecture or crustation of those windows," and changing them from three lights with tracery to two plain lights, the author of the "Anatomy of Melancholy" being the donor of part of the new glass. The priceless old glass, which had been set up by ancient priors of St. Frideswide's, and contained pictures of the life of "The Lady," besides the arms of many benefactors, was ruthlessly sacrificed. This act of vandalism has led to still more unfortunate reprisals in our own time; for Van Ling's old glass, which had great merits, was taken away at the last restoration, and replaced by some entirely uninteresting modern stuff (to say the least of it), while the tracery was remade into a respectable nineteenth century parody of the original Perpendicular. The amiable and terrible Duppa also ruined the Decorated windows of three lights which terminated the aisles of the choir by converting them into his favourite two-light windows; and the beautiful four-light window of the Lady Chapel was similarly treated. The great north transept window was likewise impoverished in its tracery; and at the end of the seventeenth century the great east window was reduced from five to three lights by the same curious and unaccountable perversion of taste. One more memorial of Dean Duppa defaced the cathedral down to our time. This was the strange arrangement of stone screens by which the eastern chapels were separated from the transepts, and the most romantic feature of the church destroyed. They were particularly offensive, as they finished in a half-circle turned upwards, so that, with the Norman arch above, a complete circle was formed. However, the fine pulpit and organ-screen must be set down to the credit of this period. Dean Duppa's successors signalised themselves, as far as the cathedral is concerned, only by the erection of monuments, some gruesome, and all heavy. Their work for the college was more considerable, and we shall enumerate it in our chapter on the Exterior. A great deal of mischief was done to the painted glass during the Civil War, many of the windows being destroyed, and not one left quite perfect; but otherwise the church escaped pretty well. Indeed, in this orderly country a great deal more damage has been done by lawful authority than by popular riots. Up till Dean Liddell's time the cathedral was in as bad a state as most of the other cathedrals of England. A writer in the "Ecclesiologist" for February 1847 thus bewails its then condition:--