Charles Townes

The Nature of the Interstellar Medium

Willard Libby

Radiocarbon Dating and Calibration with Tree Rings and Lake Sediments

Werner Heisenberg

Physical and political considerations in the construction of large particle accelerators (German presentation)

Ragnar Frisch

Cooperation between Politicians and Econometricians on the Formalization of Political Preferences

Robert Hofstadter

Detectors for High Energy Physics

Isidor Rabi

Sixty Years of Molecular Beams