XLII

which former papers have brought into view on this subject, it may be added that without this supplemental provision, the great and essential power of regulating foreign commerce would have been incomplete and ineffectual. A very material object of this power was the relief of the states which import and export through other states, from the improper contributions levied on them by the latter. Were these at liberty to regulate the trade between state and state, it must be foreseen that ways would be found out to load the articles of import and export, during the passage through their jurisdiction, with duties which would fall on the makers of the latter and the consumers of the former. We may be assured by past experience, that such a practice would be introduced by future contrivances; and both by that and a common knowledge of human affairs, that it would nourish unceasing animosities, and not improbably terminate in serious interruptions of the public tranquillity. To those who do not view the question through the medium of passion or of interest, the desire of the commercial states to collect, in any form, an indirect revenue from their uncommercial neighbors, must appear not less impolitic than it is unfair; since it would stimulate the injured party,