There is but little mosaic medallion thirteenth century glass in England, and therefore what there is of it at Canterbury would for that reason alone have great value, but because the examples there found are among the best of that period now extant, its importance is thereby greatly enhanced. An ancient supplement to the "Canterbury Tales" relates, with amusing conversational detail, how the pilgrims, upon entering the church by the south-western door of the nave, at once fell to admiring the windows and studying out their legends. The ruthless hand of time, assisted by those of Dick Culmer and Co., have made it impossible for us to enjoy that same pleasure, but certain fragments of that glass gathered together into the western window give a hint of what the beauty of the complete series must have been. With this exception there is nothing to detain one long in the nave, so we will pass on to the eastern end of the church to inspect the remaining contemporary windows--they are the finest of their type in England, and will be found in the north choir aisle, the circular apse at the extreme easterly end (known as Becket's Crown) and Trinity Chapel. There has been preserved for us an old Latin list describing and locating all the windows in their original order, and from this we learn that the ancient panels now in the north choir aisle between the easterly transept and the chapel of the Martyrdom (north end of the westerly transepts) were formerly in the embrasures of the latter. Their workmanship is very fine, and they tell their parables with great distinctness. Proceeding eastward to Becket's Crown, we shall be afforded an edifying opportunity to observe how much more brilliant and generally delightful are the old mosaic medallions than even the best modern copies. The oldest window dates from the middle of the thirteenth century, and it takes but a glance to betray those of its companions which are modern. The improvements of centuries in glass manufacture fail utterly to yield us an equivalent for the brilliancy of the crudely constructed panels of that time. The most interesting and, for various reasons, the most valuable medallions are those filling the six windows of Trinity Chapel which retain their original glazing. In those on the north side of where the shrine used to stand, are medallions whose groups display miracles performed by the saint, or episodes illustrative of his healing power. At the top of the second from the east on this side is a medallion of very peculiar interest because it depicts Benedict's vision of the saint emerging from his shrine in full canonicals and moving toward the high altar to say mass. Examine it carefully, for here we have the only representation now existing of that world-renowned shrine, whose lavish decoration of gold and jewels so roused the cupidity of Henry VIII. as to cause its destruction. There is every reason to believe this to be a