Feature

First Glances at New Books

Ball-and-Socket Joint Found in Dinosaur Skull

Heart Affliction Seen as Cause of Kind of Insanity

$1,000 AAAS Award Given for Paper on Root Pressure

Alcohol, Ether, Exposure Lower Pneumonia Resistance

Front Matter

Existence of All Matter Rests on Intra-Atomic Force

Secret of Sex Determination Sought with X-Ray Studies

Vitamin $text{B}_{1}$ May Be Fundamental Component in Evolution

Winner “Flabbergasted” Sees Many Problems Ahead

Psychologists Puzzled over Adaptability of Workers

[Photograph]: Scientists Relax