Lyndon Johnson: “I exercise it rarely and only when required.”

Sometimes it is your job to go out and scout the road, to encounter and overcome the difficulties that always accompany such a vast new venture as this.

This program, sponsored by the World Meteorological Organization, constitutes one of the largest and most complex scientific and technological undertakings ever attempted as an international effort.

In that pursuit, Mr. President, United States support will be gladly given.

Now, Therefore, I, Lyndon B. Johnson, President of the United States, under the authority vested in me by section 2 of the act of June 8, 1906, supra, do proclaim that, subject to valid existing rights, the lands owned or controlled by the…