While engaged some years ago in studying the Chaucer manuscripts in the Bodleian Library, I incidentally turned my attention also to those of the _Confessio Amantis_. The unsatisfactory character of the existing editions of that poem was sufficiently well known, and it was generally recognized that the printed text could not safely be referred to by philologists, except so far as those small portions were concerned which happened to have been published from a good manuscript by Mr. A. J. Ellis in his _Early English Pronunciation_; so that, in spite of the acknowledged importance of the book in the history of the development of standard literary English, it was practically useless for linguistic studies. I was struck by the excellence of the authorities for its text which existed at Oxford, and on further investigation I convinced myself that it was here that the much needed new edition could best be produced. Accordingly I submitted to the Delegates of the University Press a proposal to edit the _Confessio Amantis_, and this proposal they accepted on the condition that I would undertake to edit also the other works, chiefly in French and Latin, of the same author, expressly desiring that the _Speculum Meditantis_, which I had lately identified while searching the Cambridge libraries for copies of the _Confessio Amantis_, should be included in the publication. To this condition I assented with some hesitation, which was due partly to my feeling that the English text was the only one really needed, and partly to doubts about my own competence to edit the French. Considering, however, the extent to which the writings of this author in various languages illustrate one another, the help which is to be derived from the French works in dealing with the Romance element in the English not only of Gower, but also of Chaucer and other writers of the time, and the clearer view of the literary position of the _Confessio Amantis_ which is gained by approaching it from the French side, I am now disposed to think that the Delegates were right in desiring a complete edition; and as for my own competence as an editor, I can only say that I have learnt much since I first undertook the work, and I have the satisfaction of knowing that I have avoided many errors into which I should once have fallen. For the faults that remain (I speak now of the contents of the present volume) I ask the indulgence of those who are more competent Romance scholars than myself, on the ground that it was clearly desirable under the circumstances that the French and the English should have the same editor. Moreover, I may fairly claim to have given faithful and intelligible texts, and if I have gone wrong in other respects, it has been chiefly because I have wished to carry out the principle of dealing with all difficulties fairly, rather than passing them over without notice.