Feature

Ice of Glacial Yesteryear Leaves Mark on Western Rocks

New Tests Show Safety in Using Hot Cement

Dial Telephones Add Almost Seventy Thousand to Jobless

Strict Lenten Observance Prevents Arterial Hardening

Milk Sugar Found to Aid Bone Growth in Chicks

[Photograph]: Black Crescent of Death

Sun’s Unseen Radiation Speeds Growth of Plants

A Movie That Is All “Heart Interest”

In Science Fields

Discovery of the Tubercle Bacillus: “A Classic of Science”

Ice Water Possible Cause of Evolutionary Speeding

Wobble of Compass Needle Reveals Inner Earth Secrets