Treaties — Application by municipal courts — Supremacy over conflicting provision of earlier municipal law — French Constitution, Article 55 — Requirement of reciprocity — Conditions for fulfilment — Whether determination a matter for courts or Executive

State succession — Acquired rights — Algerian accession to independence — Governmental Declaration on Economic and Financial Cooperation of 19 March 1962, Article 15 — Whether applicable to pension rights accrued at date of accession to independence — The law of France