About Peter C. Erb Books by Peter C. Erb The Correspondence of Henry Edward Manning and William Ewart Gladstone Volume Four 1882-1891 edited by Peter C. Erb The Correspondence of Henry Edward Manning and William Ewart Gladstone Volume Four 1882-1891 edited by Peter C. Erb An Introduction to German Pietism Protestant Renewal at the Dawn of Modern Europe by (author) Douglas H. Shantz foreword by Peter C. Erb