Editorial note — INDEX

Early in the eleventh century, a saintly German bishop, Bernard of Hildesheim, is said to have made for himself a chalice of glass, and a few years later a bishop of Auxerre founded three prebendal seats, one for a painter, one for a goldsmith, and a third for a glass-worker (vitrier—probably a maker of glass windows). We must not, then, be surprised at the acquaintance with the practical arts shown by the monk Rugerus (Theophilus).