Feature

Discovery of Double-Weight Hydrogen Was Anticipated

Biological Station Opened on Marine Mountain Peak

Tropical Scourge Conquered through Research of Scientist

Submerged Beach Proves to Be Island Once 30 Times Larger

Infantile Paralysis Caused by Disappearing Microbe

Sunken Pleasure Boats Reveal Mechanical Skill of Romans

In Science Fields

Gland Extract May Be Essential to All Tissues

Nerves Grow as If with Aim A.A.A.S. Prize Paper Shows

Front Matter

First Glances at New Books

Animal Immunized against Parasite for First Time