tariff terms construed by commercial usage

Laws imposing duties on importations of goods, are intended for practical use and application by men engaged in commerce; and hence it has become a settled rule in the interpretation of statutes of this description, to construe the language adopted by the legislature, and particularly in the denomination of articles, according to the commercial understanding of the terms used... It applied its attention to the description of articles, as they derived their appellations in our own markets, in our domestic as well as our foreign traffic; and it would have been as dangerous as useless, to attempt any other classification than that derived from the actual business of human life.