Les Constitutions Européennes. By Boris Mirkine-Guetzévitch. (Paris: Presses Universitaires de France. 1951. 2 vols. Pp. xiii, 883. 1,500 fr. ea.) - Constitutions and Constitutional Trends Since World War II; An Examination of Significant Aspects of Postwar Public Law with Particular Reference to the New Constitutions of Western Europe. Edited by Arnold J. Zurcher. (New York: New York University Press. 1951. Pp. viii, 351. $5.00.)