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Ultra-Violet Light Found Deadly to Lower Organisms

“Rotor” Ship Operates on Baseball Principle

Trees Fed and Cured by Hypodermic Injections

Pigs’ Rheumatism Cured by Dose of Sunlight

Special Thermometers Tell When Oranges Are Cold

Easy Transportation Cause of Disappearing Forests

Scientists Seek Means to Limit Timber Waste

Research of Pyorrhea Supported by Carnegie Corporation

Siamese Fighting Fish Visit London Zoo

Noise of Electrons Heard by Human Ears