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New Comet Seen by Astronomers

Classics of Science: Preparation of Carbon Dioxid

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First Glances at New Books

Winter Begins Thursday

First Glances at New Books

Prize Method Used Here

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Nobel Prize-Winner Tells of Discoveries: X-Rays as a Branch of Optics

Vacant Lots in the Solar System

Building and Flying Model Airplanes: Finishing the Lindy Model