Under the facts in this case it is not necessary to decide whether the provision for lead-bearing ores in paragraph 181, Tariff Act July 24, 1897, c. 11, § 1, Schedule C, 30 Stat. 166 (U. S. Comp. St.' 1901, p. 1644), is exclusive. On the merits the Board of General Appraisers and the Circuit Court ruled correctly.

The judgment of the Circuit Court is affirmed.