The President's National Medal of Science: Recipient Details
Harold C. Urey
Professor of Chemistry
University of California, San Diego
La Jolla,California USA
"For outstanding contributions to our understanding of the origin and evolution of the solar system and the origin of life on Earth and for pioneering work in the application of isotopes to the determination of the temperatures of ancient oceans."
Presented by President Johnson at a White House Ceremony in the East Room on February 8, 1965.