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“Rotor” Ship Operates on Baseball Principle

Plan to Use Airplanes in Piloting Steamers

Ultra-Violet Light Found Deadly to Lower Organisms

Washington to Be Magnet for Scientists New Year’s Week

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Germans Again Claim to Make Gold from Mercury

Orion Returns to Evening Sky

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Trees Fed and Cured by Hypodermic Injections

Siamese Fighting Fish Visit London Zoo

Sky Pinwheels Are Stellar Universes 6,000,000,000,000,000,000 Miles Away

Scientists Seek Means to Limit Timber Waste