Not the whole matter, but some side facts worth conning to-day and any day.

I consider the war of attempted secession, 1860-'65, not as a struggle of two distinct and separate peoples, but a conflict (often happening, and very fierce) between the passions and paradoxes of one and the same identity—perhaps the only terms on which that identity could really become fused, homogeneous and lasting. The origin and conditions out of which it arose, are full of lessons, full of warnings yet to the Republic—and always will be. The underlying and principal of those origins are yet singularly ignored. The Northern States were really just as responsible for that war, (in its precedents, foundations, instigations,) as the South. Let me try to give my view. From the age of 21 to 40, (1840-'60,) I was interested in the political movements of the land, not so much as a participant, but as an observer, and a regular voter at the elections. I think I was conversant with the springs of action, and their workings, not only in New York city and Brooklyn, but understood them in the whole country, as I had made leisurely tours through all the middle States, and partially through the western and southern, and down to New Orleans, in which city I resided for some time. (I was there at the close of the Mexican war—saw and talk'd with General Taylor, and the other generals and officers, who were feted and detain'd several days on their return victorious from that expedition.)

Of course many and very contradictory things, specialties, developments, constitutional views, &c., went to make up the origin of the war—but the most significant general fact can be best indicated and stated as follows: For twenty-five years previous to the outbreak, the controling "Democratic" nominating conventions of our Republic—starting from their primaries in wards or districts, and so expanding to counties, powerful cities, States, and to the great Presidential nominating conventions—were getting to represent and be composed of more and more putrid and dangerous materials. Let me give a schedule, or list, of one of these representative conventions for a long time before, and inclusive of, that which nominated Buchanan. (Remember they had come to be the fountains and tissues of the American body politic, forming, as it were, the whole blood, legislation, office-holding, &c.) One of these conventions, from 1840 to '60, exhibited a spectacle such as could never be seen except in our own age and in these States. The members who composed it were, seven-eighths of them, the meanest kind of bawling and blowing office-holders, office-seekers, pimps, malignants, conspirators, murderers, fancy-men, custom-house clerks, contractors, kept-editors, spaniels well-train'd to carry and fetch, jobbers, infidels, disunionists, terrorists, mail-riflers, slave-catchers, pushers of slavery, creatures of the President, creatures of would-be Presidents, spies, bribers, compromisers, lobbyers, sponges, ruin'd sports, expell'd gamblers, policy-backers, monte-dealers, duellists, carriers of conceal'd weapons, deaf men, pimpled men, scarr'd inside with vile disease, gaudy outside with gold chains made from the people's money and harlots' money twisted together; crawling, serpentine men, the lousy combings and born freedom-sellers of the earth. And whence came they? From back-yards and bar-rooms; from out of the custom-houses, marshals' offices, post-offices, and gambling-hells; from the President's house, the jail, the station-house; from unnamed by-places, where devilish disunion was hatch'd at midnight; from political hearses, and from the coffins inside, and from the shrouds inside of the coffins; from the tumors and abscesses of the land; from the skeletons and skulls in the vaults of the federal almshouses; and from the running sores of the great cities. Such, I say, form'd, or absolutely controll'd the forming of, the entire personnel, the atmosphere, nutriment and chyle, of our municipal, State, and National politics—substantially permeating, handling, deciding, and wielding everything—legislation, nominations, elections, "public sentiment," &c.—while the great masses of the people, farmers, mechanics, and traders, were helpless in their gripe. These conditions were mostly prevalent in the north and west, and especially in New York and Philadelphia cities; and the southern leaders, (bad enough, but of a far higher order,) struck hands and affiliated with, and used them. Is it strange that a thunder-storm follow'd such morbid and stifling cloud-strata?

I say then, that what, as just outlined, heralded, and made the ground ready for secession revolt, ought to be held up, through all the future, as the most instructive lesson in American political history—the most significant warning and beacon-light to coming generations. I say that the sixteenth, seventeenth and eighteenth terms of the American Presidency have shown that the villainy and shallowness of rulers (back'd by the machinery of great parties) are just as eligible to these States as to any foreign despotism, kingdom, or empire—there is not a bit of difference. History is to record those three Presidentiads, and especially the administrations of Fillmore and Buchanan, as so far our topmost warning and shame. Never were publicly display'd more deform'd, mediocre, snivelling, unreliable, false-hearted men. Never were these States so insulted, and attempted to be betray'd. All the main purposes for which the government was establish'd were openly denied. The perfect equality of slavery with freedom was flauntingly preach'd in the north—nay, the superiority of slavery. The slave trade was proposed to be renew'd. Everywhere frowns and misunderstandings—everywhere exasperations and humiliations. (The slavery contest is settled—and the war is long over—yet do not those putrid conditions, too many of them, still exist? still result in diseases, fevers, wounds—not of war and army hospitals—but the wounds and diseases of peace?)

Out of those generic influences, mainly in New York, Pennsylvania, Ohio, &c., arose the attempt at disunion. To philosophical examination, the malignant fever of that war shows its embryonic sources, and the original nourishment of its life and growth, in the north. I say secession, below the surface, originated and was brought to maturity in the free States. I allude to the score of years preceding 1860. My deliberate opinion is now, that if at the opening of the contest the abstract duality-question of slavery and quiet could have been submitted to a direct popular vote, as against their opposite, they would have triumphantly carried the day in a majority of the northern States—in the large cities, leading off with New York and Philadelphia, by tremendous majorities. The events of '61 amazed everybody north and south, and burst all prophecies and calculations like bubbles. But even then, and during the whole war, the stern fact remains that (not only did the north put it down, but) the secession cause had numerically just as many sympathizers in the free as in the rebel States.

As to slavery, abstractly and practically, (its idea, and the determination to establish and expand it, especially in the new territories, the future America,) it is too common, I repeat, to identify it exclusively with the south. In fact down to the opening of the war, the whole country had about an equal hand in it. The north had at least been just as guilty, if not more guilty; and the east and west had. The former Presidents and Congresses had been guilty—the governors and legislatures of every northern State had been guilty, and the mayors of New York and other northern cities had all been guilty—their hands were all stain'd. And as the conflict took decided shape, it is hard to tell which class, the leading southern or northern disunionists, was more stunn'd and disappointed at the non-action of the free-State secession element, so largely existing and counted on by those leaders, both sections.

So much for that point, and for the north. As to the inception and direct instigation of the war, in the south itself, I shall not attempt interiors or complications. Behind all, the idea that it was from a resolute and arrogant determination on the part of the extreme slaveholders, the Calhounites, to carry the States-rights' portion of the constitutional compact to its farthest verge, and nationalize slavery, or else disrupt the Union, and found a new empire, with slavery for its corner-stone, was and is undoubtedly the true theory. (If successful, this attempt might—I am not sure, but it might—have destroy'd not only our American republic, in anything like first-class proportions, in itself and its prestige, but for ages at least, the cause of Liberty and Equality everywhere—and would have been the greatest triumph of reaction, and the severest blow to political and every other freedom, possible to conceive. Its worst result would have inured to the southern States themselves.) That our national democratic experiment, principle, and machinery, could triumphantly sustain such a shock, and that the Constitution could weather it, like a ship a storm, and come out of it as sound and whole as before, is by far the most signal proof yet of the stability of that experiment, Democracy, and of those principles, and that Constitution.

Of the war itself, we know in the ostent what has been done. The numbers of the dead and wounded can be told or approximated, the debt posted and put on record, the material events narrated, &c. Meantime, elections go on, laws are pass'd, political parties struggle, issue their platforms, &c., just the same as before. But immensest results, not only in politics, but in literature, poems, and sociology, are doubtless waiting yet unform'd in the future. How long they will wait I cannot tell. The pageant of history's retrospect shows us, ages since, all Europe marching on the crusades, those arm'd uprisings of the people, stirr'd by a mere idea, to grandest attempt—and, when once baffled in it, returning, at intervals, twice, thrice, and again. An unsurpass'd series of revolutionary events, influences. Yet it took over two hundred years for the seeds of the crusades to germinate, before beginning even to sprout. Two hundred years they lay, sleeping, not dead, but dormant in the ground. Then, out of them, unerringly, arts, travel, navigation, politics, literature, freedom, the spirit of adventure, inquiry, all arose, grew, and steadily sped on to what we see at present. Far back there, that huge agitation-struggle of the crusades stands, as undoubtedly the embryo, the start, of the high preeminence of experiment, civilization and enterprise which the European nations have since sustain'd, and of which these States are the heirs.

Another illustration—(history is full of them, although the war itself, the victory of the Union, and the relations of our equal States, present features of which there are no precedents in the past.) The conquest of England eight centuries ago, by the Franco-Normans—the obliteration of the old, (in many respects so needing obliteration)—the Domesday Book, and the repartition of the land—the old impedimenta removed, even by blood and ruthless violence, and a new, progressive genesis establish'd, new seeds sown—time has proved plain enough that, bitter as they were, all these were the most salutary series of revolutions that could possibly have happen'd. Out of them, and by them mainly, have come, out of Albic, Roman and Saxon England—and without them could not have come—not only the England of the 500 years down to the present, and of the present—but these States. Nor, except for that terrible dislocation and overturn, would these States, as they are, exist to-day.

It is certain to me that the United States, by virtue of that war and its results, and through that and them only, are now ready to enter, and must certainly enter, upon their genuine career in history, as no more torn and divided in their spinal requisites, but a great homogeneous Nation—free States all—a moral and political unity in variety, such as Nature shows in her grandest physical works, and as much greater than any mere work of Nature, as the moral and political, the work of man, his mind, his soul, are, in their loftiest sense, greater than the merely physical. Out of that war not only has the nationality of the States escaped from being strangled, but more than any of the rest, and, in my opinion, more than the north itself, the vital heart and breath of the south have escaped as from the pressure of a general nightmare, and are henceforth to enter on a life, development, and active freedom, whose realities are certain in the future, notwithstanding all the southern vexations of the hour—a development which could not possibly have been achiev'd on any less terms, or by any other means than that grim lesson, or something equivalent to it. And I predict that the south is yet to outstrip the north.