Feature

Story of Human Error Is Told by Scientists

Nature Ramblings: Necessary Insects

“Nature” Urges Protest against Science Use in War

First Glances at New Books

Front Matter

Chemical Helps Body to Fight Streptococcus Infections

[Photograph]: Who Is He?

35 per Cent Success in Use of Spray for Polio

Discover Safe Kind of Surgery for “Bleeders”

Bureau of Standards Builds Testing Unit for Scales

Navajo Rugs Flawless; Indians Lose Old Fear

Unborn Guinea-Pigs Now Aid Study of Disease Resistance