Feature

In Science Fields

League of Nations Acting to Abolish March Easters

Early Steps in Photography: “A Classic of Science”

Chinese Children Take Tests in New Peiping Laboratory

First Glances at New Books

New Tests Show Safety in Using Hot Cement

Ice of Glacial Yesteryear Leaves Mark on Western Rocks

Dial Telephones Add Almost Seventy Thousand to Jobless

Invention Hastens Coming of Television in Movie Theatre

Front Matter

Strict Lenten Observance Prevents Arterial Hardening

Milk Sugar Found to Aid Bone Growth in Chicks