Summary

Joseph P. Bradley Philadelphia Southern Mail Company v…

Sale is the object of importation, and is an essential ingredient of that intercourse, of which importation constitutes a part. It is as essential an ingredient, as indispensable to the existence of the entire thing, then, as importation itself. It must be considered as a component part of the power to regulate commerce. Congress has a right, not only to authorize importation, but to authorize the importer to sell. * * * Any penalty inflicted on the importer for selling the article in his character of importer must be in opposition to the act of congress which authorizes importation.
Source: Wikisource

Joseph P. Bradley Philadelphia Southern Mail Company v…

They are taxed, not only because they are money or its value, but because they were received for transportation. No doubt a ship-owner, like any other citizen, may be personally taxed for the amount of his property or estate, without regard to the source from which it was derived, whether from commerce or banking or any other employment. But that is an entirely different thing from laying a special tax upon his receipts in a particular employment.
Source: Wikisource

Joseph P. Bradley Philadelphia Southern Mail Company v…

If such a tax is laid, and the receipts taxed are those derived from transporting goods and passengers in the way of interstate or foreign commerce, no matter when the tax is exacted, whether at the time of realizing the receipts, or at the end of every six months or a year, it is an exaction aimed at the commerce itself, and is a burden upon it, and seriously affects it.
Source: Wikisource

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