"Uffenbach is in the Sint Janskerk in Gouda, and comments on each stained-glass window individually, using their numbers. He stops at window 29, because the others are small and not special. Uffenbach is astonished that the Passion of Christ cycle did not include the crucifixion scene. Uffenbach is unable to distinguish whether the windows are painted or stained and fired on. The sacristan shows them a piece of blue glass to demonstrate the latter is the case."