A Union meeting was held at Staunton, Virginia, on the 25th of November, over which Col. James Crawford presided. Resolutions were adopted declaring the readiness of those assembled to meet all good citizens of every section, and of every party, on the platform of the Constitution, the Compromise, and the Union; and also expressing the belief that the maintenance of the Compromise in all its parts, without modification or amendment, is essential to the preservation of the Union. Letters were read from a number of distinguished gentlemen who had been invited, but were unable to be present.

A large meeting was held at Manchester, N. H., on the 20th of November, at which resolutions were passed expressing devotion to the Union, and a determination to stand by the Compromise measures, and to resist all further agitation of the subject.

A large Union meeting was held in Cincinnati, on the 14th of November, at which resolutions were adopted declaring their approval of, and determination to support, the measures of peace and compromise relative to the admission of California as a State; the establishment of the Territorial Governments of New Mexico and Utah; the settlement of the boundary question of Texas; the abolition of the slave trade in the district of Columbia; and the provision the more effectually to secure the observance of the constitutional duty to deliver up fugitives owing service or labor. They also declared that they condemned, and would oppose all forcible resistance to the execution of the law of the General Government for the re-capture of fugitives owing service or labor; that they regard such law as constitutional—in accordance with the compromise which formed the Union, and that they would sustain and enforce it by all proper and legal means, as a matter of constitutional compromise and obligation. And furthermore they declared that any effort to re-open the delicate and distracting questions settled and compromised by the Compromise and Peace measures passed during the late session of Congress are factious, and should be disapproved and opposed.

During the past month letters and speeches, upon the engrossing topic of the day, from some of the most eminent men in the country, have been given to the public, and have attracted a good deal of attention. They have been mainly on the side of the Compromise measures of the last session of Congress; as the agitation upon the other side, in the Northern States at least, has for the present almost wholly ceased. A speech of very marked and characteristic ability was made by the Hon. Rufus Choate, at the Faneuil Hall Union meeting in Boston. Mr. C. thought that the union of these States was in manifest peril, mainly from a public opinion created by restless and unprincipled men. He traced, with great skill and in very graphic and eloquent language, the manner in which public opinion is moulded by the unceasing efforts of the press and the orator, and that it is only by a prolonged and voluntary educational process that the fine and strong spirit of nationality is made to penetrate the great mass of the people, and the full tide of American feeling to fill the mighty heart. He then depicted the manner in which hostility of sentiment and sympathy between different sections of the country has been created and is kept alive. Coming, then, to the means by which danger to the Union can be best averted, he said the first and foremost thing to be done was to accept that whole body of measures of Compromise, by which the Government has sought to compose the country, and then for every man to set himself to suppress the further political agitation of this whole subject. These measures were then referred to, one after the other, and the essential justice and expediency of each were declared. The two great political parties of the North, he said, ought at once to strike this whole subject from their respective issues. He was not for any amalgamation of parties, or for the formation of any new one: the two great parties had united for the settlement of this great question, and they could now revive the old creeds, return to their old positions, and so spare America that last calamity, the formation of parties according to geographical lines. The conscience of the community, moreover, is bound to discourage and modify the further agitation of the subject of slavery, in the spirit in which, thus far, that agitation has been carried on. It is a great error to suppose that conscience or philanthropy requires the constant agitation of this topic. We of the North have nothing whatever to do with slavery in the Southern States, for we have solemnly covenanted with them that we will not interfere with it, and that we will perform certain duties growing out of it. Those duties are obligatory upon us, and no pretense of a higher law can absolve us from them. These positions were presented by Mr. Choate with all his accustomed strength, and with even more than the warmth of feeling and profusion of illustration which distinguish all his efforts.

Mr. Webster wrote a letter in reply to an invitation to attend the great Union meeting at Staunton, Va., approving most heartily of the objects of the proposed meeting, and assuring them, of his hearty sympathy and his unchangeable purpose to co-operate with them and other good men in upholding the honor of the States, and the Constitution of the Government. Political martyrdom, he declares, would be preferable to beholding the voluntary dismemberment of this glorious Republic. "It is better to die while the honor of the country is untarnished, and the flag of the Union still flying over our heads, than to live to behold that honor gone forever, and that flag prostrate in the dust." He assures them, from personal observation at the North, that through the masses of the Northern people the general feeling and the great cry is, for the Union, and for its preservation: and, "while there prevails a general purpose to maintain the Union as it is, that purpose embraces, as its just and necessary means, a firm resolution of supporting the rights of all the States, precisely as they stand guaranteed and secured by the Constitution. And you may depend upon it," he adds, "that every provision in that instrument in favor of the rights of Virginia and the other Southern States, and every constitutional act of Congress, passed to uphold and enforce those rights, will be upheld and maintained not only by the power of the law, but also by the prevailing influence of public opinion. Accidents may occur to defeat the execution of a law in a particular instance; misguided men may, it is possible, sometimes enable others to elude the claims of justice and the rights founded in solemn constitutional compact, but, on the whole, and in the end, the law will be executed and obeyed; the South will see that there is principle and patriotism, good sense and honesty, in the general minds of the North; and that among the great mass of intelligent citizens in that quarter, the general disposition to ask for justice is not stronger than the disposition to grant it to others." Mr. Webster closes his letter by urging the people of Virginia to teach their young men to study the early history of the country, the feebleness of the Confederation—and to trace the steps, the votes, the efforts, and the labor by which the present Constitution was formed. He exhorts them to stand by their country, to stand by the work of their fathers, to stand by the Union of the States, "and may Almighty God prosper all our efforts in the cause of liberty, and in the cause of that United Government which renders this people the happiest people upon which the sun ever shone!"

Hon. A. H. H. Stuart, Secretary of the Interior, wrote a letter also on the same occasion in reply to a similar invitation. He expresses great satisfaction that meetings in behalf of the Union are held throughout the country. He says he believes that the integrity of the Union, and the peace of the country, will mainly depend on the course which the people of Virginia may adopt in the present crisis. There has been a melancholy change in the feelings of the people toward the Union, he thinks, within a few years past. Then, nothing but his advanced age, the respect felt for his character, and the strongest professions of attachment to the Union, prevented John Quincy Adams from public censure or expulsion for simply presenting a petition to Congress for a dissolution of the Union. Now, dissolution is openly advocated in speeches, pamphlets, and the newspaper press. Let the idea go abroad that Virginia sanctions such sentiments as these, and our Union is but a rope of sand. The only safe reliance, Mr. Stuart thinks, is for Virginia to assume her old position of mediator and pacificator. "Let her speak in language that can not be misunderstood. Let her blend kindness with firmness. But let no lingering doubt remain as to her loyalty to the Union." Twenty years ago, when the Union was in danger, General Jackson declared that it must be preserved. General Jackson slumbers in his grave, and there are men plotting disunion over his very ashes. But Mr. Stuart assures those to whom he writes, that we have a man at the head of the Government "not less devoted to the Union than Jackson, and not less determined to use all the powers vested in him by the Constitution to maintain it. He justly appreciates his obligations to maintain the integrity of the Constitution, and to see that the laws are faithfully executed. He will know no distinction between the North and the South, but will enforce obedience to the laws every where."

Hon. H. W. Hilliard, Member of Congress from Alabama, has written a letter declining a re-nomination, and discussing at some length the present condition of public affairs. The events of the past year, instead of impairing the strength of our political system, have, in his judgment, really served to demonstrate it. There is a growing conviction in the mind of the whole nation that the Constitution must be adhered to in its pristine spirit, and that, while it is adhered to, the republic will endure. He had no fear that the extension of our limits would enfeeble us. Our progress is the spread of a great family, all bearing with them the law, the traditions, the sympathies, and the religion of those from whom they sprung. The true way of perpetuating our Union is by multiplying the means of intercommunication, by making taxes as light as possible, by reducing postage, multiplying railroads, and bringing the Pacific coast nearer to us by the early construction of one of those great highways. The scheme of retaliation, lately projected, of discriminating against the products of other States must be abandoned, and our whole legislation, State and National, must be guided by a comprehensive, national, and patriotic spirit. "These States must regard each other as kindred States; the Constitution must be recognized in all of them as the supreme law; and the acts of Congress, passed in accordance with its provisions, must be obeyed, and we must fix in our minds and in our hearts the idea that, as we have had a common origin, we must have a common destiny." The measures of the last session must be regarded as a final adjustment of the disturbing questions growing out of slavery. Mr. H. exhorts to a conciliatory and a patriotic spirit. "Let us forbear," he says, "any hostile acts on our own part. I certainly desire to see in the midst of the great agricultural regions of the South a varied industry, which shall rival that of the North, and which shall spread over our fertile plains all the embellishments which wealth and a high civilization can bestow. I desire, too, to see a direct trade with foreign countries carried on through Southern ports. But I desire to see all this brought about by the enterprise and the energy of our people, entering into a bold and generous competition with those of the other States. We should seek to make Alabama a great and wealthy State; and we can do this by the vigorous development of our resources. Our fertile soil, our noble streams, our great cotton crop, our exhaustless mineral wealth, our population intelligent, industrious, enterprising, and religious—these will enable us to advance with a steady and rapid march in civilization, without resorting to legislative expedients to tax the products of other States associated with us in a common Government, one of the great objects of which is, to keep open the channels of intercommunication."

Hon. Levi Woodbury wrote a letter expressing regret that he could not attend the Union Meeting held at Manchester, N. H., on the 20th of November. He says that without more forbearance as to agitation of the subject of slavery, it is his solemn conviction, the Union will be placed in fearful jeopardy. He mentions as an alarming sign of the times the fact that any portion of our law-abiding community should either recommend forcible resistance to the laws, or actually participate in measures designed to overawe the constituted authorities, and defeat the execution of legal precepts issued by those authorities. This, he says, is in direct hostility to the injunctions of Washington in his Farewell Address to his grateful countrymen; and seems no less hostile and derogatory to every sound principle for sustaining public order and obedience to what the legislative agents of the people and the States have enacted.

A letter from Mr. Webster, written on the same occasion, also alludes to the disposition which is abroad to evade the laws, and to resist them so far as it can be done consistently with personal safety. A "still more extravagant notion," he says, "is sometimes entertained, which is, that individuals may judge of their rights and duties, under the Constitution and the laws, by some rule which, according to their idea, is above both the Constitution and the laws." Both these positions are denounced as at war with all government and with all morality. "It is time," Mr. Webster adds, "that discord and animosity should cease. It is time that a better understanding and more friendly sentiments were revived between the North and the South. And I am sure that all wise and good men will see the propriety of forbearing from renewing agitation by attempts to repeal the late measures, or any of them. I do not see that they contain unconstitutional or alarming principles, or that they forebode the infliction of wrong or injury. When real and actual evil arises, if it shall arise, the laws ought to be amended or repealed; but in the absence of imminent danger I see no reason at present for renewed controversy or contention."

Mr. Clay, upon formal invitation of that body, visited the Legislature of Kentucky on the 15th of November. He was welcomed by the Speaker of the House in some brief and appropriate remarks to which he responded at considerable length. He spoke mainly of the measures of the session in which he had borne so conspicuous a part. The session, he said, opened under peculiarly unfavorable auspices. The sentiment of disunion was openly avowed, and a sectional convention of delegates had been assembled, the tendency of which was to break up the confederacy. In common with others, Mr. Clay said he had foreseen the coming storm, and it was the hope that he might assist in allaying it that led him to return to the Senate. The subject had long engaged his most anxious thoughts, and the result of his reflections was the series of propositions which he presented to Congress soon after the opening of the session. A committee of thirteen was afterward appointed to which the whole matter was referred and they reported substantially the same measures which he had proposed. At that time he was decidedly in favor of the immediate admission of California into the Union as a separate and distinct measure; but subsequent observation of the hostility which it encountered led him to modify his opinions, and unite it with kindred measures in one common bill. In excluding the Wilmot Proviso, which had previously been the great aim and object of the South, they obtained a complete triumph—and obtained it, too, by the liberal, magnanimous and patriotic aid of the northern members. It is true they may never be able to establish slavery in any of this newly acquired territory; but that is not the fault of Congress, which has adhered strictly to the policy of non-intervention, but of the people of the territory themselves to whom the whole subject has been committed. The boundary of Texas gave rise to by far the most intricate and perplexing question of the Session. Various opinions were held in regard to it by various interests, and the matter seemed to him eminently one for compromise and amicable adjustment. We gave what seems a large sum (ten millions of dollars), to Texas for relinquishing her claim, but half this amount we owed her creditors for having taken the revenues to which they looked for payment of their debts. Mr. Clay said he voted the money very cheerfully, because he believed it would be applied to the payment of her public debt; and he wished that we had some legitimate ground for giving to every debtor State in the Union money enough to pay all its debts, and restore its credit wherever it has been tarnished. Of the fugitive slave bill Mr. Clay said simply that its object was simply to give fair, full, and efficacious effect to the constitutional provision for the surrender of fugitives. The act abolishing the slave trade in the District of Columbia, was of little practical importance to southern interests, while it was demanded by every consideration of humanity and of national self-respect. In looking at the result of the whole, Mr. Clay thought that neither party, so far as California is concerned, could be said to have lost or gained any thing, while in regard to the territorial bills and the fugitive slave law the South had gained all it could reasonably claim. The effect of these measures, Mr. Clay thought, would be to allay agitation and pacify and harmonize the country. At all events it will greatly circumscribe the field of agitation: for none of these measures can be opened for renewed action except the fugitive slave bill; and when the dispute is narrowed down to that single ground the slaveholding States have decidedly the advantage. The Constitution is with them, the right is with them, and the State which shall oppose the execution of the law will place itself manifestly in the wrong. It was not to be expected that these measures would lead to immediate and general acquiescence on the part of the ultras of either section; but Mr. Clay did confidently anticipate that all their mad efforts would be put down by the intelligence, the patriotism, and the love of union of the people of the various States. Mr. Clay went on to draw a picture of the condition of the country, and especially of the slaveholding States, in the event of a dissolution of the Union. Under the present law the South will not probably recover all their fugitive slaves; but they will recover some of them. But in the event of disunion not one could be demanded. Mr. Clay said he had often been asked when he would consent to a dissolution of the Union. He answered Never, because he could conceive of no possible contingency that would make it for the interest and happiness of the people to break up this glorious confederacy. He would yield to it, if Congress were to usurp a power, which he was sure, it never would, of abolishing slavery within the States, for in the contingency of such a usurpation we should be in a better condition as to slavery out of the Union than in it. He believed that the time would come, at some very distant day, when the density of the population of the United States would be so great that free labor would be cheaper than slave labor, and that then the slaves would be set free; and that Africa would be competent to receive, by colonization from America, all the descendants of its own race. If the agitation of this subject should be continued, it must lead to the formation of two parties—one for the Union and the other against it. If such a division should become necessary, he announced himself a member of the Union party what ever might be its elements. He would go further. "I have had," said he, "great hopes and confidence in the principles of the Whig party, as being most likely to conduce to the honor, to the prosperity, and the glory of my country. But if it is to be merged into a contemptible abolition party, and if abolitionism is to be engrafted on the Whig creed, from that moment I renounce the party, and cease to be a Whig. I go yet a step further: if I am alive, I will give my humble support for the Presidency to that man, to whatever party he may belong, who is uncontaminated by fanaticism, rather than to one who, crying out all the time and aloud that he is a Whig, maintains doctrines utterly subversive of the Constitution and the Union." Mr. Clay said that the events of the last few months had thrown together men of opposite parties, and he could say with truth and pleasure that during the late session he was in conference quite as often, if not oftener, with Democrats than Whigs; and he "found in the Democratic party quite as much patriotism, devotion to the Union, honor, and probity as in the other party."