Feature

Determine Sex by Blood Tests

Pledge Support to Research to Forestall Needless Suffering

New Evidence That Chemists Can Transmute Elements

Large Sunspots Indicate Great Solar Activity

Intelligence Is Minor Factor in Money Making

Old Chinese Drug Is New Medical Find

Same Frog Both Male and Female

Diabetes Insipidus Cause Believed Found

To Encircle Cities with National Forests

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Warns Printers Against Lead

Actual Rubber Shortage Seen for 1930