Phillips Chemical Company v. Dumas Independent School District

Mr. Clark M. Clifford, Washington, D.C., for appellant.

Mr. John F. Davis, Washington, D.C., for the United States, as amicus curiae, by invitation of the Court.

Mr. Jack N. Price for State of Texas, as amicus curiae, pro hac vice, by special leave of Court.

Mr. Earnest L. Langley for appellee.

Mr. CHIEF JUSTICE WARREN delivered the opinion of the Court.