State Succession — Treaties — Pacta de contrahendo).

Treaties — Forms of — Exchange of Letters — How far Constituting an International Obligation — Non-Observance of Constitutional Provisions.

Treaties — Kinds of — Pacta de contrahendo — State Succession.

Treaties — Interpretation having Regard to Modern Requirements.

Protectorates — Responsibility for Obligations of the Protected State — British Treaty with the Government of the Sultan of Morocco — Exchange of Letters Modifying the Original Treaty — Conformity with Constitutional Law — How far Constituting a Binding Obligation — Pactum de contrahendo — How far Binding on the Successor State.