There can be no question connected with the administration of public affairs more important or more difficult to be satisfactorily dealt with than that which relates to the rightful authority and proper action of the Federal Government upon the subject of internal improvements. To inherent embarrassments have been added others resulting from the course of our legislation concerning it.

I have heretofore communicated freely with Congress upon this subject, and in adverting to it again I can not refrain from expressing my increased conviction of its extreme importance as well in regard to its bearing upon the maintenance of the Constitution and the prudent management of the public revenue as on account of its disturbing effect upon the harmony of the Union.

We are in no danger from violations of the Constitution by which encroachments are made upon the personal rights of the citizen. The sentence of condemnation long since pronounced by the American people upon acts of that character will, I doubt not, continue to prove as salutary in its effects as it is irreversible in its nature. But against the dangers of unconstitutional acts which, instead of menacing the vengeance of offended authority, proffer local advantages and bring in their train the patronage of the Government, we are, I fear, not so safe. To suppose that because our Government has been instituted for the benefit of the people it must therefore have the power to do whatever may seem to conduce to the public good is an error into which even honest minds are too apt to fall. In yielding themselves to this fallacy they overlook the great considerations in which the Federal Constitution was founded. They forget that in consequence of the conceded diversities in the interest and condition of the different States it was foreseen at the period of its adoption that although a particular measure of the Government might be beneficial and proper in one State it might be the reverse in another; that it was for this reason the States would not consent to make a grant to the Federal Government of the general and usual powers of government, but of such only as were specifically enumerated, and the probable effects of which they could, as they thought, safely anticipate; and they forget also the paramount obligation upon all to abide by the compact then so solemnly and, as it was hoped, so firmly established. In addition to the dangers to the Constitution springing from the sources I have stated, there has been one which was perhaps greater than all. I allude to the materials which this subject has afforded for sinister appeals to selfish feelings, and the opinion heretofore so extensively entertained of its adaptation to the purposes of personal ambition. With such stimulants it is not surprising that the acts and pretensions of the Federal Government in this behalf should sometimes have been carried to an alarming extent. The questions which have arisen upon this subject have related—

First. To the power of making internal improvements within the limits of a State, with the right of territorial jurisdiction, sufficient at least for their preservation and use.

Second. To the right of appropriating money in aid of such works when carried on by a State or by a company in virtue of State authority, surrendering the claim of jurisdiction; and

Third. To the propriety of appropriation for improvements of a particular class, viz, for light-houses, beacons, buoys, public piers, and for the removal of sand bars, sawyers, and other temporary and partial impediments in our navigable rivers and harbors.

The claims of power for the General Government upon each of these points certainly present matter of the deepest interest. The first is, however, of much the greatest importance, inasmuch as, in addition to the dangers of unequal and improvident expenditures of public moneys common to all, there is superadded to that the conflicting jurisdictions of the respective governments. Federal jurisdiction, at least to the extent I have stated, has been justly regarded by its advocates as necessarily appurtenant to the power in question, if that exists by the Constitution. That the most injurious conflicts would unavoidably arise between the respective jurisdictions of the State and Federal Governments in the absence of a constitutional provision marking out their respective boundaries can not be doubted. The local advantages to be obtained would induce the States to overlook in the beginning the dangers and difficulties to which they might ultimately be exposed. The powers exercised by the Federal Government would soon be regarded with jealousy by the State authorities, and originating as they must from implication or assumption, it would be impossible to affix to them certain and safe limits. Opportunities and temptations to the assumption of power incompatible with State sovereignty would be increased and those barriers which resist the tendency of our system toward consolidation greatly weakened. The officers and agents of the General Government might not always have the discretion to abstain from intermeddling with State concerns, and if they did they would not always escape the suspicion of having done so. Collisions and consequent irritations would spring up; that harmony which should ever exist between the General Government and each member of the Confederacy would be frequently interrupted; a spirit of contention would be engendered and the dangers of disunion greatly multiplied.

Yet we all know that notwithstanding these grave objections this dangerous doctrine was at one time apparently proceeding to its final establishment with fearful rapidity. The desire to embark the Federal Government in works of internal improvement prevailed in the highest degree during the first session of the first Congress that I had the honor to meet in my present situation. When the bill authorizing a subscription on the part of the United States for stock in the Maysville and Lexington Turnpike Company passed the two Houses, there had been reported by the Committees of Internal Improvements bills containing appropriations for such objects, inclusive of those for the Cumberland road and for harbors and light-houses, to the amount of $106,000,000. In this amount was included authority to the Secretary of the Treasury to subscribe for the stock of different companies to a great extent, and the residue was principally for the direct construction of roads by this Government. In addition to these projects, which had been presented to the two Houses under the sanction and recommendation of their respective Committees on Internal Improvements, there were then still pending before the committees, and in memorials to Congress presented but not referred, different projects for works of a similar character, the expense of which can not be estimated with certainty, but must have exceeded $100,000,000.

Regarding the bill authorizing a subscription to the stock of the Maysville and Lexington Turnpike Company as the entering wedge of a system which, however weak at first, might soon become strong enough to rive the bands of the Union asunder, and believing that if its passage was acquiesced in by the Executive and the people there would no longer be any limitation upon the authority of the General Government in respect to the appropriation of money for such objects, I deemed it an imperative duty to withhold from it the Executive approval. Although from the obviously local character of that work I might well have contented myself with a refusal to approve the bill upon that ground, yet sensible of the vital importance of the subject, and anxious that my views and opinions in regard to the whole matter should be fully understood by Congress and by my constituents, I felt it my duty to go further. I therefore embraced that early occasion to apprise Congress that in my opinion the Constitution did not confer upon it the power to authorize the construction of ordinary roads and canals within the limits of a State and to say, respectfully, that no bill admitting such a power could receive my official sanction. I did so in the confident expectation that the speedy settlement of the public mind upon the whole subject would be greatly facilitated by the difference between the two Houses and myself, and that the harmonious action of the several departments of the Federal Government in regard to it would be ultimately secured.

So far, at least, as it regards this branch of the subject, my best hopes have been realized. Nearly four years have elapsed, and several sessions of Congress have intervened, and no attempt within my recollection has been made to induce Congress to exercise this power. The applications for the construction of roads and canals which were formerly multiplied upon your files are no longer presented, and we have good reason to infer that the current of public sentiment has become so decided against the pretension as effectually to discourage its reassertion. So thinking, I derive the greatest satisfaction from the conviction that thus much at least has been secured upon this important and embarrassing subject.