Treaties — Conclusion and operation of — Operation and enforcement of — Necessity for municipal legislation — Publication of treaties — French Constitution of 1946 (Article 26) — Franco-Indian Treaty, 1954, providing for cession of French Indian territories — Whether publication in Journal Officiel of French India sufficient — French administrative regulation issued in pursuance of Treaty and derogating from prior French legislation — Whether severable from Treaty — Whether excès de pouvoir — The law of France.