Summary

Portrait of Samuel Freeman Miller Samuel Freeman Miller Morgan's Louisiana Company v. Board of Health of the State of Louisiana…

In the present case we are of opinion that the fee complained of is not a tonnage tax; that, in fact, it is not a 'tax,' within the true meaning of that word as used in the constitution; but is a compensation for a service rendered, as part of the quarantine system of all countries, to the vessel which receives the certificate that declares it free from further quarantine requirements.
Is the law under consideration void as a regulation of commerce? Undoubtedly it is, in some sense, a regulation of commerce. It arrests a vessel on a voyage which may have been a long one.
Source: Wikisource

Portrait of Samuel Freeman Miller Samuel Freeman Miller Morgan's Louisiana Company v. Board of Health of the State of Louisiana…

There remains to be considered the objection that the law is forbidden by paragraph 6 of section 9 of the first article of the constitution, which declares that 'no preference shall be given by any regulation of commerce or revenue to the ports of one state over those of another.' It is not readily perceived how this quarantine statute of Louisiana, and particularly the fees of the quarantine officers, do give such a preference. Are the ports of Louisiana given a preference over ports of other states? Are the ports of any other state given a preference over those of Louisiana?
Source: Wikisource

Portrait of Samuel Freeman Miller Samuel Freeman Miller Morgan's Louisiana Company v. Board of Health of the State of Louisiana…

Although situated over a hundred miles from the Gulf of Mexico, it is the largest city which partakes of its commerce, and more vessels of every character come to and depart from it than any city connected with that commerce. Partaking, as it does, of the liability to diseases of warm climates, and in the same danger of all other sea-ports of cholera and other contagious and infectious disorders, these are sources of anxiety to its inhabitants, and to all the interior population of the country who may be affected by their spread among them.
Source: Wikisource

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