L i q u i d level always visible through translucent container
H F*
NOW IN A NEW 1-LB PATENTED FUNCTIONAL CONTAINER WITH A CQNTROLLED-DEUVERY
CLOSURE
This new patented container is made of "Marlex" polyethylene. In addition to controlled drop or flow action, the container sucks back H F remaining on the delivery spout. Specify Mallinckrodt Acid Hydrofluoric 48% A.R. . . . manufactured in a new plant supplying you with the highest quality, laboratory-reagent-grade H F available. * Remember . . . for safety, convenience and economy Mallinckrodt provides H F in the 1-lb. container illustrated . . . and in 10-LB SINGLE-TRIP "MARLEX" polyethylene containers.
Another example of Superior Mallinckrodt ORDER
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ST. L O U I S · N E W YORK · M O N T R E A L For further information, circle number 25 A on Readers' Service Card, page 101 A