International Law — Relation to Municipal Law — Municipal Law in Conflict with International Law — Difference between International and Municipal Tribunals.

States — Continuity of — De facto Governments — Effect of Non-Recognition.

Claims — Right to Put Forward Claims in respect of Obligations of Governments not Recognised by Claimant State — Estoppel.

Arbitration — Evidence and Procedure — Estoppel — Right to Put Forward Claims in respect of Obligations of Governments not Recognised by Claimant State.

Recognition of Governments — Status of de facto Governments — Tests of Existence Effect of Non-Recognition — The Doctrine of Legitimacy — Great Britain and the Tinoco Government of Costa Rica — Non-Recognition as Estoppel — Continuity of States and de facto Governments — Duty not to have Recourse to Diplomatic Protection of the Home State — Limits of Responsibility for Acts of de facto Governments — Concessions Granted in Disregard of Constitutional Provisions.