The text of all but two of the sixteen papers assembled in this volume has been reprinted unchanged except for the correction of a minor inaccuracy, the revision or removal of obsolete references to forthcoming research, and the exclusion of illustrations from the final chapter. Two pieces (chapters 5 and 13) are published here in English for the first time and differ in points of detail from the original French versions. A number of inconsistencies have been removed from the references to modern scholarship, all of which have been consolidated into a bibliography at the end of the volume. New material has been confined to the addenda that conclude most of the chapters. These supplements offer concise overviews of pertinent research undertaken subsequent to the publication of a particular essay. Although I have reviewed a wide range of recent scholarship, and in some cases also referred to forthcoming publications, the addenda are not intended to be exhaustive. Special attention has been devoted to contributions which respond to and elaborate on the original articles. As a consequence, individual addenda vary greatly in length, therein reflecting trends in recent scholarship as well as the limits of editorial competence. For the same reasons, four chapters did not seem to require any addenda.

The completion of the addendum to chapter II has been greatly facilitated by the generosity of Graham Oliver, Ronald Stroud and Michael Whitby who made their work accessible in advance of publication.