States until some regulation on the subject had been made by Congress. But, assuming the tax to be, as we have supposed, a discriminating tax, levied exclusively upon the products of-sister States; and looking to the consequences which the exercise of this power may produce if it be once conceded, amounting, as we have seen, to a total abolition of all commercial intercourse between the States, under the cloak of the taxing power, we are not prepared to admit that a State can exercise such a power,, though Congress may have failed to act on the subject in any manner whatever.”
In Welton v. Missouri, 91 U. S. 275, 281, the coui-t, spbaking by Mr. Justice Field, declared to be unconstitutional a statute of Missouri, imposing a license tax upon the sale by peddlers of • certain kinds of personal property “ not I the growth, produce or manufacture” of that State, but -which did not impose a like tax upon similar articles grown, produced, or manufactured in Missouri. ■ After observing that if the tax there in question could be imposed at all, the power of the State could not be controlled, however unreasonable and oppressive its action, the court said: “ Imposts operating as an absolute exclusion- of the goods would be possible, and all the evils of discriminating state legislation, favorable to the interests of one State, and injurious to the interests of other States and countries, which existed previous to the adoption of the Constitution, might follow, and the experience of the last fifteen years shows would follow, from the action of some of the States.”
In Railroad Co. v. Husen, 95 U. S. 465, the court examined a statute of Missouri prohibiting, under penalties, any Texas, Mexican, or Indian cattle, from being driven -or otherwise conveyed into,' or remaining in, any county of the State, between the first day of March and the first day of November, in each year, by any person or persons whatsoever. While admitting, in the broadest terms, the power of a State to pass sanitary laws, and laws for the protection of life, liberty, health, or property within its borders, to prevent convicts, or persons and animals suffering under contagious or infectious diseases, from entering the State, and, for pur