But we are just at the close of the sixth decade, and the commencement of the seventh. The census is to be taken this year, which must add greatly to the decided preponderance of the North in the House of Representatives and in the Electoral College. The prospect is, also, that a great increase will be added to its present preponderance in the Senate, during the period of the decade, by the addition of new States. Two territories, Oregon and Minnesota, are already in progress, and strenuous efforts are making to bring in three additional States' from the territory recently conquered from Mexico; which, if successful, will add three other States in a short time to the northern section, making five States; and increasing the present number of its States from fifteen to twenty, and of its senators from thirty to forty. On the contrary, there is not a single territory in progress in the southern section, and no certainty that any additional State will be added to it during the decade. The prospect then is, that the two sections in the senate, should the effort now made to exclude the South from the newly acquired territories succeed, will stand before the end of the decade, twenty Northern States to fourteen Southern (considering Delaware as neutral), and forty Northern senators to twenty-eight Southern. This great increase of senators, added to the great increase of members of the House of Representatives and the Electoral College on the part of the North, which must take place under the next decade, will effectually and irretrievably destroy the equilibrium which existed when the Government commenced.

Had this destruction been the operation of time, without the interference of Government, the South would have had no reason to complain; but such was not the fact. It was caused by the legislation of this Government, which was appointed as the common agent of all, and charged with the protection of the interests and security of all. The legislation by which it has been effected may be classed under three heads. The first is, that series of acts by which the South has been excluded from the common territory belonging to all the States as members of the Federal Union—which have had the effect of extending vastly the portion allotted to the northern section, and restricting within narrow limits the portion left the South. the next consists in adopting a system of revenue and disbursements, by which an undue proportion of the burden of taxation has been imposed upon the South, and an undue proportion of its proceeds appropriated to the North; and the last is a system of political measures, by which the original character of the Government has been radically changed. I propose to bestow upon each of these, in the order they stand, a few remarks, with the view of showing that it is owing to the action of this Government that the equilibrium between the two sections has been destroyed, and the whole powers of the system centered in a sectional majority.

The first of the series of Acts by which the South was deprived of its due share of the territories, originated with the confederacy which preceded the existence of this Government. It is to be found in the provision of the ordinance of 1787. Its effect was to exclude the South entirely from that vast and fertile region which lies between the Ohio and the Mississippi rivers, now embracing five States and one Territory. The next of the series is the Missouri compromise, which excluded the South from that large portion of Louisiana which lies north of 36° 30', excepting what is included in the State of Missouri. The last of the series excluded the South from the whole of Oregon Territory. All these, in the slang of the day, were what are called slave territories,' and not free soil; that is, territories belonging to slaveholding powers and open to the emigration of masters with their slaves. By these several Acts the South was excluded from one million two hundred and thirty-eight thousand and twenty-five square miles—an extent of country considerably exceeding the entire valley of the Mississippi. To the South was left the portion of the Territory of Louisiana lying south of 36° 30', and the portion north of it included in the State of Missouri, with the portion lying south of 36° 30' including the States of Louisiana and Arkansas, and the territory lying west of the latter, and south of 36° 30', called the Indian country. These, with the Territory of Florida, now the State, make, in the whole, two hundred and eighty-three thousand five hundred and three square miles. To this must be added the territory acquired with Texas. If the whole should be added to the southern section it would make an increase of three hundred and twenty-five thousand five hundred and twenty, which would make the whole left to the South six hundred and nine thousand and twenty-three. But a large part of Texas is still in contest between the two sections, which leaves it uncertain what will be the real extent of the proportion of territory that may be left to the South.

I have not included the territory recently acquired by the treaty with Mexico. The North is making the most strenuous efforts to appropriate the whole to herself, by excluding the South from every foot of it. If she should succeed, it will add to that from which the South has already been excluded, 526,078 square miles, and would increase the whole which the North has appropriated to herself, to 1,764,023, not including the portion that she may succeed in excluding us from in Texas. To sum up the whole, the United States, since they declared their independence, have acquired 2,373,046 square miles of territory, from which the North will have excluded the South, if she should succeed in monopolizing the newly acquired territories, about three fourths of the whole, leaving to the South but about one fourth.

Such is the first and great cause that has destroyed the equilibrium between the two sections in the Government.

The next is the system of revenue and disbursements which has been adopted by the Government. It is well known that the Government has derived its revenue mainly from duties on imports. I shall not undertake to show that such duties must necessarily fall mainly on the exporting States, and that the South, as the great exporting portion of the Union, has in reality paid vastly more than her due proportion of the revenue; because I deem it unnecessary, as the subject has on so many occasions been fully discussed. Nor shall I, for the same reason, undertake to show that a far greater portion of the revenue has been disbursed at the North, than its due share; and that the joint effect of these causes has been, to transfer a vast amount from South to North, which, under an equal system of revenue and disbursements, would not have been lost to her. If to this be added, that many of the duties were imposed, not for revenue, but for protection,—that is, intended to put money, not in the treasury, but directly into the pockets of the manufacturers,—some conception may be formed of the immense amount which, in the long course of sixty years, has been transferred from South to North. There are no data by which it can be estimated with any certainty; but it is safe to say that it amounts to hundreds of millions of dollars. Under the most moderate estimate, it would be sufficient to add greatly to the wealth of the North, and thus greatly increase her population by attracting emigration from all quarters to that section.

This, combined with the great primary cause, amply explains why the North has acquired a preponderance in every department of the Government by its disproportionate increase of population and States. The former, as has been shown, has increased, in fifty years, 2,400,000 over that of the South. This increase of population, during so long a period, is satisfactorily accounted for, by the number of emigrants, and the increase of their descendants, which have been attracted to the northern section from Europe and the South, in consequence of the advantages derived from the causes assigned. If they had not existed—if the South had retained all the capital which had been extracted from her by the fiscal action of the Government; and, if it had not been excluded by the ordinance of 1787 and the Missouri compromise, from the region lying between the Ohio and the Mississippi rivers, and between the Mississippi and the Rocky Mountains north of 36° 30'—it scarcely admits of a doubt, that it would have divided the emigration with the North, and by retaining her own people, would have at least equalled the North in population under the census of 1840, and probably under that about to be taken. She would also, if she had retained her equal rights in those territories, have maintained an equality in the number of States with the North, and have preserved the equilibrium between the two sections that existed at the commencement of the Government. The loss, then, of the equilibrium is to be attributed to the action of this Government.

But while these measures were destroying the equilibrium between the two sections, the action of the Government was leading to a radical change in its character, by concentrating all the power of the system in itself. The occasion will not permit me to trace the measures by which this great change has been consummated. If it did, it would not be difficult to show that the process commenced at an early period of the Government; and that it proceeded, almost without interruption, step by step, until it virtually absorbed its entire powers; but without going through the whole process to establish the fact, it may be done satisfactorily by a very short statement.

That the Government claims, and practically maintains, the right to decide in the last resort, as to the extent of its powers, will scarcely be denied by any one conversant with the political history of the country. That it also claims the right to resort to force to maintain whatever power it claims against all opposition is equally certain. Indeed it is apparent, from what we daily hear, that this has become the prevailing and fixed opinion of a great majority of the community. Now, I ask, what limitation can possibly be placed upon the powers of a government claiming and exercising such rights? And, if none can be, how can the separate governments of the States maintain and protect the powers reserved to them by the Constitution—or the people of the several States maintain those which are reserved to them, and among others, the sovereign powers by which they ordained and established, not only their separate State Constitutions and Governments, but also the Constitution and Government of the United States? But, if they have no constitutional means of maintaining them against the right claimed by this Government, it necessarily follows, that they hold them at its pleasure and discretion, and that all the powers of the system are in reality concentrated in it. It also follows, that the character of the Government has been changed in consequence, from a federal republic, as it originally came from the hands of its framers, into a great national consolidated democracy. It has indeed, at present, all the characteristics of the latter, and not of the former, although it still retains its outward form.

The result of the whole of those causes combined is, that the North has acquired a decided ascendency over every department of this Government, and through it a control over all the powers of the system. A single section governed by the will of the numerical majority, has now, in fact, the control of the Government and the entire powers of the system. What was once a constitutional federal republic, is now converted, in reality, into one as absolute as that of the Autocrat of Russia, and as despotic in its tendency as any absolute government that ever existed.