Feature

Race May Be Cause of Negro’s Lower Tuberculosis Resistance

Ancestors of Eskimos Found Minnesota Lake Bed Varves

Climate and Your Health

Child Burial in Each of Seven Newly Found Texas Caves

In Science Fields

Front Matter

Tepe Gawra Becomes Holder “World’s Oldest Town” Title

Synthesis of Vitamin A by Light Is Disputed

Tamed Hummingbirds Eat from Mouth of Man

New Tomb Found at Famous Maya Capital

Resistance to Poliomyelitis May Be an Inherited Trait

Distance of the Stars: “A Classic of Science”