States as international persons — Composite States — Unions of States — Exclusive competence of Federal Government in foreign relations — Whether infringed by state law restricting transmission of proceeds of inheritance to alien resident in German Democratic Republic — The law of the United States

The individual in international law — Aliens — Plea of non-discrimination — Alien legatee resident outside United States — New York law restricting transmission of proceeds to legatee in German Democratic Republic — Whether discriminatory — The law of the United States

States as international persons — Sovereignty and independence Conduct of foreign relations — Inheritance by non — resident aliens — State statutory control over transmission of proceeds of inheritance to legatees residing in Germany — Authority of state to legislate on foreign relations — The law of the United States