How far, and in what form, ought woman's work in the Church to be organized? What was the deaconess of St. Paul's epistles? What light on this subject do the primitive and the mediaeval Churches yield us? Can "sisterhoods" be established without weakening the sense of personal responsibility in those Christian women who are not thus wholly set apart to charitable and spiritual work? Can they be multiplied without danger of introducing into Protestant communions the evils of the conventual life? Are there modern instances of safe and successful organizations? What good have they achieved, and what further good do they promise? In what relation should such organizations stand to the authority and fostering care of the Church? What should be their scope, spirit, methods? What regulations are fundamental and indispensable? What perils are real and possibly imminent? To answer these, and other questions associated with them, this book is written. Its authoress is a gifted daughter of the Church, well known in literary and educational circles. During a protracted sojourn in Europe she enjoyed unusual facilities for studying the deaconess work as carried on in many places, and particularly in the institutions founded by Pastor Fliedner at Kaiserswerth in Prussia, and in those at Mildmay in England. She has also made a thorough and discriminating study of the subject as developed in the early centuries of the Church and in the Middle Ages. The book itself will amply reveal these facts, and cannot but contribute largely to the guidance of the newly revived interest of the American churches in the far-reaching question how Christian women may best serve their Lord in serving the humanity which he has redeemed.