ATI, STEAMEII UP 6aa@6&

Steam and chemical-laden vapors give ceiling and roof structures of wet process plants an awful beating. Ordinary lumber decays and other materials often go to pieces in a hurry. Wolmanlzed Lumber*, wood that's impregnated with Wolman Salts* preservative, is highly resistant to this attack. Its use adds years of service life here.

PBESSUBI IREIIMEIfT does the trick

Driving the preservative deep into the wood, under great pressure in steel retorts, is what does the trick. Protection is there for keeps. The excellent performance oI hundreds of millions of feet oI lumber so treated tesri{ies to the worth of Wolmanized Lumber.