California Institute of Technology.

• Cloud Cover Estimation
• Dedication of the Palomar Observatory
• Dedication of the Seeley W. Mudd and the Charles Arms laboratories of the geological sciences
• Permeability and salt accumulation
• Remarks by Robert A. Millikan and James R. Page at the presentation of the Seymour Thomas portrait of William Bennett Munro, Dabney Hall of the Humanities, December ninth, 1946
• Research and development at the Jet Propulsion Laboratory, GALCIT
• Resources of the world, a speculative projection
• Scientific progress and human valves
• The Daniel Guggenheim Graduate School of Aeronautics of the California Institute of Technology
• The Guggenheim Aeronautical Laboratory of the California Institute of Technology
• The mineral nutrition of plants
• The range of research