President Monroe, in a message to the House of Representatives of the 4th of May, 1822, containing his objections to a bill entitled "An act for the preservation and repair of the Cumberland road," declares:

Commerce between independent powers or communities is universally regulated by duties and imposts. It was so regulated by the States before the adoption of this Constitution, equally in respect to each other and to foreign powers. The goods and vessels employed in the trade are the only subjects of regulation. It can act on none other. A power, then, to impose such duties and imposts in regard to foreign nations and to prevent any on the trade between the States was the only power granted.

If we recur to the causes which produced the adoption of this Constitution, we shall find that injuries resulting from the regulation of trade by the States respectively and the advantages anticipated from the transfer of the power to Congress were among those which had the most weight. Instead of acting as a nation in regard to foreign powers, the States individually had commenced a system of restraint on each other whereby the interests of foreign powers were promoted at their expense. If one State imposed high duties on the goods or vessels of a foreign power to countervail the regulations of such power, the next adjoining States imposed lighter duties to invite those articles into their ports, that they might be transferred thence into the other States, securing the duties to themselves. This contracted policy in some of the States was soon counteracted by others. Restraints were immediately laid on such commerce by the suffering States; and thus had grown up a state of affairs disorderly and unnatural, the tendency of which was to destroy the Union itself and with it all hope of realizing those blessings which we had anticipated from the glorious Revolution which had been so recently achieved. From this deplorable dilemma, or, rather, certain ruin, we were happily rescued by the adoption of the Constitution.

Among the first and most important effects of this great Revolution was the complete abolition of this pernicious policy. The States were brought together by the Constitution, as to commerce, into one community, equally in regard to foreign nations and each other. The regulations that were adopted regarded us in both respects as one people. The duties and imposts that were laid on the vessels and merchandise of foreign nations were all uniform throughout the United States, and in the intercourse between the States themselves no duties of any kind were imposed other than between different ports and counties within the same State.

This view is supported by a series of measures, all of a marked character, preceding the adoption of the Constitution. As early as the year 1781 Congress recommended it to the States to vest in the United States a power to levy a duty of 5 per cent on all goods imported from foreign countries into the United States for the term of fifteen years. In 1783 this recommendation, with alterations as to the kind of duties and an extension of this term to twenty-five years, was repeated and more earnestly urged. In 1784 it was recommended to the States to authorize Congress to prohibit, under certain modifications, the importation of goods from foreign powers into the United States for fifteen years. In 1785 the consideration of the subject was resumed, and a proposition presented in a new form, with an address to the States explaining fully the principles on which a grant of the power to regulate trade was deemed indispensable. In 1786 a meeting took place at Annapolis of delegates from several of the States on this subject, and on their report a convention was formed at Philadelphia the ensuing year from all the States, to whose deliberations we are indebted for the present Constitution.

In none of these measures was the subject of internal improvement mentioned or even glanced at. Those of 1784, 1785, 1786, and 1787, leading step by step to the adoption of the Constitution, had in view only the obtaining of a power to enable Congress to regulate trade with foreign powers. It is manifest that the regulation of trade with the several States was altogether a secondary object, suggested by and adopted in connection with the other. If the power necessary to this system of improvement is included under either branch of this grant, I should suppose that it was the first rather than the second. The pretension to it, however, under that branch has never been set up. In support of the claim under the second no reason has been assigned which appears to have the least weight.

Such is a brief history of the origin, progress, and consequences of a system which for more than thirty years after the adoption of the Constitution was unknown. The greatest embarrassment upon the subject consists in the departure which has taken place from the early construction of the Constitution and the precedents which are found in the legislation of Congress in later years. President Jackson, in his veto of the Wabash River bill, declares that "to inherent embarrassments have been added others resulting from the course of our legislation concerning it." In his vetoes on the Maysville road bill, the Rockville road bill, the Wabash River bill, and other bills of like character he reversed the precedents which existed prior to that time on the subject of internal improvements. When our experience, observation, and reflection have convinced us that a legislative precedent is either unwise or unconstitutional, it should not be followed.

No express grant of this power is found in the Constitution. Its advocates have differed among themselves as to the source from which it is derived as an incident. In the progress of the discussions upon this subject the power to regulate commerce seems now to be chiefly relied upon, especially in reference to the improvement of harbors and rivers.

In relation to the regulation of commerce, the language of the grant in the Constitution is:

Congress shall have power to regulate commerce with foreign nations, and among the several States, and with the Indian tribes.