Feature

Front Matter

Galaxy of Scientific Stars Give Their Views at Harvard

Prof. Edgar Douglas Adrian: Man Needs Bigger Brain

Dr. Otto Struve: New Red Nebula

Prof. Arthur Haas: Source of Star Energy

Prof. Tullio Levi-Civita: Extends Relativity Theory

Prof. Ronald Aylmer Fisher: Poses Mathematics Problem

Dr. W. F. G. Swann: Discusses Cosmic Rays

Dr. James Bertram Collip: Pituitary Governs Behavior

Prof. Charles Gustav Jung: Hunger Most Important

[Photograph]: Measures Flow

Prof. Jean Piaget: A Moving Picture World