Feature

Contrasts Arguments of Darwin and Bryan

Machine Tests Mind and Records Result

Science Hunting down Antirachitic Vitamin

Egg Supply Treatened by Invisible Raider

Says Infection May Lurk in “Harmless” Organisms

Insect Sounds Have No Meaning

Sponges, Torn to Bits, Reassemble Themselves

Plant Lives in Air; Yet Has High Iron Content

Use Iron to Ensnare Air Nitrogen

Extracts Strengthen Impoverished Blood

“Rotor” Ship Operates on Baseball Principle

Plan to Use Airplanes in Piloting Steamers