FACING PAGE 2. Part of Crucifixion Window, Poitiers. Late twelfth century 8 3. Methuselah, Canterbury, originally in choir clerestory. Twelfth century 16 4. "Noë in Archa," from the north choir aisle, Canterbury. Twelfth century 24 5. The Entombment, from the east window, Canterbury. Twelfth or early thirteenth century 32 6. Scroll-work, from the east window, Canterbury. Twelfth or early thirteenth century 40 7. Border, from the Trinity Chapel, Canterbury. Twelfth or early thirteenth century 44 8. Border and Mosaic Diaper, from the Trinity Chapel, Canterbury. Thirteenth century 48 9. Western Lancets and Rose, Chartres Cathedral. Twelfth and thirteenth centuries 56 10. The Big Angel, from the clerestory of the apse, Chartres Cathedral. Thirteenth century 60 11. David, from the clerestory of the apse, Chartres Cathedral. Thirteenth century 64 12. Amaury de Montfort, from the choir clerestory, Chartres Cathedral. Thirteenth century 72 13. The Flight into Egypt, from the south aisle, Chartres Cathedral. Thirteenth century 76 14. Work of Clement of Chartres in Rouen Cathedral. Late thirteenth century 80 15. The Flight into Egypt, Poitiers. Late thirteenth century 88 16. Heraldic Panel, from the clerestory of the nave, York Minster. Early fourteenth century 92 17. Details from windows in the north aisle of nave, York Minster. Fourteenth century 96 18. Border and Shields, from Peter de Dene window, north aisle of nave, York Minster, with details from window in south aisle and sketch of clerestory window. Fourteenth century 104 19. St. Margaret, west window of north aisle of nave, York Minster. Fourteenth century 108 20. St. Stephen, from south aisle of nave, York Minster. Fourteenth century 112 21. The Nativity, upper part of east window of north aisle, All Saints', North Street, York. Fourteenth century 120 22. St. John, from east window of south aisle, St. Martin's, Micklegate, York. Fourteenth century 124