Avec ce quatrieme volume, I' Annuaire europeen entre dans 1a seconde phase de son existance. A l'origine, la pUblication de' cet Annuaire avait ete, a titre d'experience, prevue pour trois ans. Cette periode est deja depassee, et Ie succes de l'experience est demontre par de nombreuses critiques elogieuses comme par l'accueil tres favorable que lui ont reserve les milieux inte resses aux affaires europeennes. En consequence, Ie Comite des Ministres du Conseil de l'Euro pe decida, en mars 1957, que l'Annuaire europeen continuerait a paraitre sans limitation de duree. Ainsi les assises de notre oeuvre sont, pour ainsi dire, devenues permanentes, et ce fait meme prouve les progres realises dans la voie de I'integration europeenne. En effet l'annee 1957 a ete extremement fructueuse en ce qui concerne l'integration europeenne et, alors que, dans l'ensemble, ce volume IV devait etre consacre a I' evolution des faits en 1956, nous avons dll egalement porter notre attention, aussi bien dans les articles que dans la partie documentaire, sur les nouvelles institutions, dont l'impQrtance est capitale. C'est pourquoi Ie Traite instituant la Communaute Economique Euro peenne figure parmi les textes documentaires du present volume; toutefois, en raison du manque de place, Ia publication du Trait6 instituant I'Euratom a ete differee jusqu'au prochain volume. Etant donne l'importance de ces deux nouveaux traites pour l'integration europeenne, Ie Comite de redaction demanda a M.

The "European Yearbook" promotes the scientific study of European organisations and the Organisation for Economic Co-operation and Development. Each volume contains a detailed survey of the history, structure and yearly activities of each organisation and an up-to-date chart providing a clear overview of the member states of each organisation. In addition, a number of articles on topics of general interest are included in each volume. A general index by subject and name, and a cumulative index of all the articles which have appeared in the "Yearbook," are included in every volume and provide direct access to the "Yearbook"'s subject matter. Each volume contains a comprehensive bibliography covering the year's relevant publications. This is an indispensable work of reference for anyone dealing with the European institutions. It is bilingual (English and French).

The "European Yearbook promotes the scientific study of nineteen European supranational organisations and the Organisation for Economic Co-operation and Development (OECD). Each volume contains a detailed survey of the history, structure and yearly activities of each organisation and an up-to-date chart providing a clear overview of the member states of each organisation. Each volume contains a comprehensive bibliography covering the year's relevant publications.

The "European Yearbook" promotes the scientific study of European organisations and the Organisation for Economic Co-operation and Development. Each volume contains a detailed survey of the history, structure and yearly activities of each organisation and an up-to-date chart providing a clear overview of the member states of each organisation. In addition, a number of articles on topics of general interest are included in each volume. A general index by subject and name, and a cumulative index of all the articles which have appeared in the "Yearbook," are included in every volume and provide direct access to the "Yearbook"'s subject matter. Each volume contains a comprehensive bibliography covering the year's relevant publications. This is an indispensable work of reference for anyone dealing with the European institutions.