NO STUFFING BOX LEAK W ITH
LEWIS PUMPS Stuffing box packing is not subjected to pressure—is never touched by the liquid p u m p e d . No leak—no hazard! FOR M A X I M U M SAFETY HANDLING SULFURIC ACID!
CHAS. S. LEWIS & CO., INC. 8625
Grant
39
Circle No. 19 on Readers' Service Card
60 A
Road
·
St.Louis
serving the j^rocess industries
INDUSTRIAL A N D ENGINEERING CHEMISTRY
2 3 , Mo.
since 1915