In these six lectures, delivered at Cambridge in March 1941, the distinguished Viennese scholar, Dr. Kelsen, now at Harvard, presents his views, some previously announced, on (1) the concept of law, (2) the nature of international law, (3) international law and the State, (4) the technique of international law, (5) federal State or confederacy of States, and (6) international administration or international court. The first four deal with analytical jurisprudence, disconnected from any social content; the last two present the author\u27s views on the nature of the new organization, federation or confederation of States, which seems likely to evolve from the present conflict as a means of assuring a more intelligent international life, a...