INK PIGMENTS, VEHICLES FOR PRINTING INKS AND VARNISHES TO BE USED IN PRINTING INKS, THINNERS FOR USE IN PRINTING INKS AND FOR USE IN VARNISHES TO BE USED IN PRINTING INKS, [ COPPER SULFATE FOR USE IN PRINTING INKS, ] MAGNESIUM CARBONATE FOR USE AS A STIFFENING AGENT IN PRINTING INKS, FIREPROOFING MATERIALS FOR USE IN INKS, MAGNESIA FOR USE AS A FIRE-PROOFING MATERIAL IN INKS, [ TALC AS A FLATTING AGENT IN INKS, ] AND ABRASION-RESISTANT MATERIALS FOR USE IN INKS FOR CARTONS TO GIVE THE CARTONS A NONABRADING SURFACE