The author began definite ministerial work at Bath in 1848. The thoroughness with which he performed his pastoral duties did not give him much time for literary work. The articles written during his stay in that city were those on Schleiermacher and Savonarola. The materials for both essays were collected while at Halle. When writing to inform his father of the completion of the first of the articles, he refers to the Mystics in the following way:— ‘I shall not begin to write another article at once. But I should like to fix on one to have more-or-less in view. There are three subjects on which I should like to write some time or other—(1) Savonarola, for which I have much material; (2) on Mysticism, tracing it in the East, in the Greek Church, in the German Mystics of the 14th century, in the French Mystics, and lastly in those most recent; (3) Leo the Great and his stirring times. I should like to do the Savonarola next. But I should also like to know what you think on these subjects, or on any other you would perhaps like better. The first and third would consist largely of interesting narrative. The second would be rather less popular but more novel.’ The ‘second’ subject was worked up into the two volumes now republished. As it gradually became his favourite study, he felt that the field was expanding before him, and that it would be necessary, if he did justice to his theme, to treat it at a greater length than could be allowed to a magazine article. In the _British Quarterly Review_ articles appeared on ‘Madame Guyon,’ and ‘The Mystics and the Reformers,’ which were simply the first results of his reading for the great work. It was at Birmingham that most of this writing was done: while there he was an indefatigable student. ‘There,’ says a writer in the _Eclectic Review_, Nov. 1861, p. 508, ‘he made himself familiar with many languages—the old German, the Spanish, even the Dutch, adding these to the Italian, French, Latin, and Greek in the classical and later forms, and all as preparations to the History of Mysticism to which he had pledged himself. The Mystics had thrown a spell upon him. Seldom have they wrought their charms without seducing to their bewildering self-abandonment.... In the case of Alfred Vaughan it was not so; he continued faithful to the high duties of life. He trod the sphere of action and compelled the ghostly band he visited, or who visited him, to pay tribute to the highest religious teaching of Christian truth and life.’ But the body would not keep pace with his mind. In 1855 he was obliged to resign his pastoral charge at Birmingham, and from that time he devoted himself entirely to literature. He wrote several articles and criticisms, chiefly in the _British Quarterly_ amongst these, one on Kingsley’s ‘Hypatia,’ which we believe was much appreciated by the future Canon of Westminster. An article on ‘Art and History’ appeared in _Fraser’s Magazine_ about the same time. And now we reach the first