Feature

Hookworm, Foe of Progress, Still Burdens Many in South

Father Gives Baby Malaria by Blood Transfusion

Oysters Open up When Weather Warms

Germs Lose and Gain Visibility by Changing Their Diet

First Glances at New Books

Dental Decay May Depend on Physical Quality of Diet

In Science Fields

The Truth about Death Valley

Better Source Found for Newly Discovered Metal

Engine without Boilers Runs on Water in Place of Steam

Laughing Weakness Treated with Potent Chinese Drug

Children Know Lindbergh and Andy Gump; But Not Hoover