Feature

474-Year-Old Family Record Analyzed by Chinese Student

In Science Fields

Sea Salt Is Cause of Red Stain on Hides

Height of Northern Lights Measured by Photographs

Nature Ramblings: Catalpa Trees

Research Shows Diet Is Not Responsible for Cancer

No Need for Alarm over Seventeen-Year “Locust”

Three-Dimensional Molecules “A Classic of Science”

Only One-Fourth of Hay Fever Patients May Expect Cure

Protecting Babies from Tuberculosis

Hundred per Cent Efficient Light Produced in Laboratory

First Glances at New Books