...m one cent per pound on the zinc contained therein: Provided, That on all importât of zinc-bearing ores the duties shall be estimated at the port of entry, and ab given In double tihe amount of such estimated duties for the transportation of ores by common carriers...

...one-half cents per pound on the lead contained therein: Prwided, That on all importations of lead-bearing ores the duties shall be estimated at the port of...carriers bonded for the transportation of appraised or uuappraised merchandise to properly equipped sampling or smelting establishments, whether designated...

...per pound on all the lead contained therein — "Provided, That on all importations of lead-bearing ores the duties shall be estimated at the port of...the transportation of the ores by common carriers * * * to properly equipped sampling or smelting establishments * * *. On the arrival of the ores at...

...one-half cents per pound on the lead contained therein: Provided, That on all importations of lead-bearing ores the duties shall be estimated at the port of...given in double the amount of such estimated duties ior the transportation of the ores by common carriers bonded for the transportation, of appraised or...

...cent per pound on the lead contained therein: Fro•vided, That on all importations of lead -bearing ores the duties shall be estimated at the port of...transportation of the ores by common carriers bonded fur the transportation of appraised or unappraiscd merchandise to properly equipped sampling or smelting...

...cents per pound on the lead contained therein: Proriucil, That on all importations of lead-bearing ores the duties shall be estimated at the port of...duties for the transportation of the ores by common carrier bonded for the transportation of appraised or unappraised merchandise to properly e<iuip|K?d...

...cent per pound on the lead contained therein : ProI'idti/, That on all importations of lead-bearing ores the duties shall be estimated at the port of...properly equipped sampling or smelting establishments, wnether designated as bonded warehouses or otherwise. On the arrival of the ores at such establishments...

...lead contained therein : PruoUled, That on all importations of lead-bearing ores the duties shall lie estimated at the port of entry, and a bond given in...or smelting establishments, whether designated as b< inded warehouses or otlierwi.se. On the arrival of the ores at such establishments they shall be...

...cents per pound on the lend contained therein: Pnirldcd, That on all importations of lead-bearing oirs the duties shall be estimated at the port of entry,...duties for the transportation of the ores by common curriers bonded for the transportation of appraised or unappraiscd merchandise to properly equipped...

...one-half cents per pound on the lead contained therein: Provided, That on all importations of lead-bearing ores the duties shall be estimated at the port of...given in double the amount of such estimated duties lor the transportation of the ores by common carriers bonded for the transportation of appraised or...