The Academy is an institution for the study and teaching of public and private international law and related subjects. Its purpose is to encourage a thorough and impartial examination of the problems arising from international relations in the field of law. The courses deal with the theoretical and practical aspects of the subject, including legislation and case law. All courses at the Academy are, in principle, published in the language in which they were delivered in the "Collected Courses of the" "Hague Academy of International Law," This volume contains: - Provisional and Protective Measures in International Litigation by L. COLLINS, Solicitor, London; Fellow, Wolfson College, Cambridge; Visiting Professor, Queen Mary and Westfield College, London. - Constitutional Limits on Choice of Law by P.E. HERZOG, Professor at the Syracuse University, New York. - Le droit international prive, droit savant, par B. OPPETIT, professeur a l'Universite de Paris II.