X. What the monks cared most about was the lighting of the church. This they were always trying to improve. In the thirteenth century they inserted large geometrical windows in the western transept, and _c._ 1290 others in the aisles of the central transepts to light the altars placed there. Moreover, the Norman windows in the aisles of the nave were replaced by wide windows of five lights. In the Curvilinear period the triforium windows were transformed, and charming flowing tracery, with rear-arches, was inserted in the windows of the apse, which then looked into the open air, but now look into the New Building. In the Perpendicular period some seventy-five windows were either enlarged or filled with rectilinear tracery. The builders certainly achieved their object. The cathedral is well lighted. We may be thankful that they did not stick a great Perpendicular window in each end of the central transept. XI. In 1541 the church was made a cathedral on the new foundation. Henry VIII. is said to have preserved it as a mausoleum to his first wife, Catharine of Arragon, who is buried in the choir. It is wretchedly built—the west front and the New Building as badly as the Norman work—and practically without foundations. Much underpinning has been done, and more is required. The west front has been saved for the present by judicious treatment. The Cathedral Church of St. Peter and St. Wilfrid, Ripon. [Illustration] Ripon minster has passed through strange vicissitudes. It was founded _c._ 660 as a monasterium or minster for Scottish monks attached to the Celtic church. Soon afterwards it was taken away from them and granted to the famous St. Wilfrid. In 678 the church became a cathedral, but only during the lifetime of Bishop Eadhed. Ultimately it passed into the hands of regular canons of the Augustinian Order. It was dissolved with the other collegiate churches by Edward VI. It was made collegiate once more by James I., but with dean and prebendaries instead of Augustinian canons. In 1836, for the second time, it became a cathedral.