Feature

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Actual Rubber Shortage Seen for 1930

Home Grown Rubber Tried out by Government Experts

Tetraethyl Lead Gas Found Not Dangerous

Ten Years Knocking the Knock from American “Gas”

Can We Predict Earthquakes?

Leaded Gasoline Renamed to Insure Safety

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No Effort at All for Chick to Walk

Supercharger to Change Auto Engine Design

Plan to Alter South African Climate

Predicts U.S. Population 255 Million by Year 2000