State Territory — Parts of — Boundaries — Water boundaries — Rivers — Rhine — Franco-German boundary — Convention of Mannheim, 1868 — Treaty of Versailles, 1919 — Franco-German Boundary Convention, 1919 — Rhine bridges — Property of French State — Obligation to assure maintenance — Whether including bridge built subsequently by French army — Collision with bridge within German territory — Whether French State responsible — Germany-France, U.K., U.S.A. Finance Convention, 1954 — Claims concerning acts of Allied forces on territory of Federal Republic — Procedure — Whether French administrative courts possess jurisdiction — The law of France.