The student of the constitutional development of the United Nations has certainly had no reason so far to complain of a scarcity of serious problems and dangerous crises claiming his attention: from Mr. Khrushchev’s proposal of 1960 to abolish the office of the Secretary General and to replace it by an executive organ consisting of three persons representing the Western Powers, the socialist states and the neutralist countries, to the long drawn-out and, at the time of this writing, still unresolved conflict concerning “certain expenses of the United Nations,” the application of Article 19 of the Charter and “the whole question of peace-keeping operations in all their aspects.” It therefore comes as a pleasant change if, for once, he can address himself to a development of the constitutional law of the Organization which is clearly of a non-revolutionary character and is being brought about by applying the very procedure which is laid down in the Charter for changes of this kind: the increase, by the procedure regulated in Article 108 of the Charter, of the number of nonpermanent Members of the Security Council from six to ten and the increase of the membership of the Economic and Social Council from eighteen to twenty-seven. This was done by amendments to Articles 23, 27 and 61 of the Charter, which were adopted by the General Assembly on December 17, 1963, and which, by August 31, 1965, were ratified by 93 Members, i.e., a number exceeding two-thirds of the Members of the United Nations, including all the permanent Members of the Security Council. The amendments entered into force on August 31, 1965. While the changes thus made in the Charter have not brought about fundamental modifications in the structure of the Organization, they are of considerable political importance. Moreover, they are the first amendments in the text of the San Francisco Charter and, in the words of Secretary of State Rusk, “this is enough by itself to endow the event with considerable significance.”