This volume, the third in the series ""The Judges"", which examines the opinions of international judges who have made significant contributions to international law, is devoted to the work of Sir Gerald Fitzmaurice. Elected to the International Court in 1960, Fitzmaurice served as a judge until 1973, playing an influential, but controversial role. Professor Merrills' essay, which precedes a selection from Fitzmaurice's opinions, analyzes his achievement during this period, showing its close relation to his earlier work as a legal advisor and scholar. Also discussed is the final phase arbitrator. Demonstrating how Fitzmaurice's decisions as a judge stemmed from a distinctive view of law and the legal process, the study should be of interest to to scholars, practitioners and students concerned with international adjudication and the nature of international law.