Feature

Blood-Clotting Platelets Produced in the Lungs

Blackheads and Pimples Infections Not Due to Diet

Valuable Mosaics Found at Antioch-on-the-Orontes

Fertility Vitamin Lack May Be Cancer Cause

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