Feature

Chemical Kills Insect Larvae but Not Fish

Germany’s Progress in Use of Magnesium Alloys

New Microscope

New White Paint Developed during War

Atomic Bomb Chemistry

Vaccination Protects against Tuberculosis

In Science Fields

Background of Atomic Bomb

Seeds and Insects to Be Tested in Atomic Blast

Amateurs Plan to See South American Eclipse

Energy of Betatron Is Being Increased

Spine Trouble May Cause Heart Disease Symptoms