State succession — Treaties — Effect of creation of new State out of part of territory of another State — India and Pakistan — Protocol and Convention concerning Foreign Arbitral Awards, 1927 — Effect of Indian Independence (International Arrangements) Order, 1947 — Devolution of treaty rights and obligations according to State practice — Relevance of non-succession of Pakistan to membership of British India in international organizations — Multilateral convention open to ratification only by States Members of League of Nations or United Nations — Whether Indian Independence (International Arrangements) Order affected rights of third States — The law of Pakistan.