In 1879, the late medieval poem now known as The Lay Folks' Mass Book - a guide to the Mass -- was edited for the Early English Text Society by Canon Thomas Frederick Simmons. It remains the standard edition of what, to modern tastes, can seem a simple work of conventional Middle English devotion. Yet, as this book shows, the poem had a remarkable afterlife. The authors demonstrate how Simmons' interest in and presentation of the text was related...