By the most marvellous good fortune the wonderful series of windows in Trinity Chapel, illustrating the many cures wrought at the Shrine of St. Thomas, have come down to the present time almost unharmed, and this magnificent range of thirteenth-century glass is finer than anything else of its period in England. This glass is all prior to 1220, and without it there would have been no representation of the first shrine at all. The colour in these windows is all subservient to the careful drawing of the pictures in the medallions, but in the north choir aisle there are some windows almost of the same period where the colour is as splendid as in any of the early windows at Chartres. For any description of the tombs of the archbishops there is, unfortunately, no space here. In the splendid crypt, besides the interest of the various periods of Norman and Transitional work, there is the rich Perpendicular screenwork of the Chapel of Our Lady of the Undercroft, and the Huguenot Chapel in what was the Black Prince's Chantry. In Tudor times the whole of the undercroft was given up to the French Protestant refugees, who, besides worshipping there, set up their looms in this hallowed portion of the Cathedral where the martyr was laid until his translation in 1220 and where Henry II. had passed the night after his severe penance. This very short description of such a building must be regarded as a mere introduction to the study of a vast subject, for in the space available nothing more is remotely possible. CHAPTER IV THE CITY