Feature

Insect Sounds Have No Meaning

Extracts Strengthen Impoverished Blood

Sponges, Torn to Bits, Reassemble Themselves

Plant Lives in Air; Yet Has High Iron Content

New Danish Tuberculosis Treatment to Be Tested by Government

Contrasts Arguments of Darwin and Bryan

Use Iron to Ensnare Air Nitrogen

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New Mechanical Larynx Helps Dumb to Speak

Anarchy in the Human Body

“Rotor” Ship Operates on Baseball Principle

Plan to Use Airplanes in Piloting Steamers