The work begins with an etymological study of the word “ratification”, and a historical outline of the formality. It examines, next, the problem of the necessity of ratification for the validity of international agreements, with a discussion of Grotius’ traditional agency doctrine and Bynkershoek’s doctrine of the tacit ratification clause. The signature of treaties is then dealt with, particularly the question of its juridical nature. There follows a theoretical explanation of the various theories on the relationship between International Law and Municipal Law, as background for an adequate understanding of the next two problems: Ratification as related to Constitutional Law and the entry of treaties into force. Finally, consideration is given to the forms of ratification.

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