Feature

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Similarities of Structure Show Relationship of Man and Animals: A Common Sense View of Evolution

Greatness Not Dependent on Position in Family

Our Daily Bread

Finds Internal Cancers with Radium Photos

U.S. Radium Laboratory Practises “Safety First”

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Colorado Scientist Hunts Ten Million Year Old Insects in South America

Navy Astronomer Planning for Next Eclipse

Large Lung Capacity Not Sure Protection

Explains Inheritance of Mental Characters

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