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Ten Years Knocking the Knock from American “Gas”

Leaded Gasoline Renamed to Insure Safety

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Warns Printers Against Lead

Actual Rubber Shortage Seen for 1930

Tetraethyl Lead Gas Found Not Dangerous

Home Grown Rubber Tried out by Government Experts

Can We Predict Earthquakes?

Bright College Men Excel on Tight Rope

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Negro Skin Gets Darker with Age

Eagle on Ancient Cup Is Clue to Its Age