Admitted to District of Columbia Bar, 1948. Member of staff Office General Counsel, Atomic Energy Commission, 1947-1950. Member Institute Advanced Study, Princeton, New Jersey, 1950-1952.
Lecturer Columbia School Law, 1952-1954, associate professor, 1954-1956, professor, since 1956, dean Columbia College, 1958-1962. Commissioner Atomic Energy Commission, 1962-1966. Fellow Institute Politics, Harvard University, 1966-1967, Woodrow Wilson International Center for Scholars, Washington, 1976-1977.
Guest scholar Brookings Institution, Washington, 1977-1978. Consultant Arms Control and Disarmament Agency, 1975-1979.
Born March 12, 1919