We are gratified in being able to offer our readers a faithful and quite full report of the speech of Hon. Jefferson Davis of Mississippi, on the occasion of the serenade given him by the citizens of Portland, without distinction of party, on Friday evening last. It will be read with interest and pleasure, and we can not doubt that every sentiment, uttered by the distinguished Mississippian, will find a hearty response and approval from the citizens of Maine. The occasion was indeed a pleasing, a hopeful one. It was in every respect the expression of generous sentiments, of kindness, hospitality, friendly regard, and the brotherhood of American citizenship. Prominent men of all parties were present, and the expression, without exception, so far as we have heard, has been that of unmingled gratification; and the scene was equally pleasant to look upon. The beautiful mansion of Rensallaer Cram, Esq., directly opposite to Madame Blanchard’s, was illuminated, and the light thrown from the windows of the two houses revealed to view the large and perfectly orderly assemblage with which Park and Danforth Streets were crowded. We regret that our readers can get no idea of the musical voice and inspiring eloquence of the speaker from a report of his remarks; but it is the best we can do for them. After the music had ceased, Mr. Davis appeared upon the steps, and as soon as the prolonged applause with which he was greeted had subsided, he spoke in substance as follows:

Fellow-citizens: Accept my sincere thanks for this manifestation of your kindness. Vanity does not lead me so far to misconceive your purpose as to appropriate the demonstration to myself; but it is not the less gratifying to me to be made the medium through which Maine tenders an expression of regard to her sister, Mississippi. It is, moreover, with feelings of profound gratification that I witness this indication of that national sentiment and fraternity which made us, and which alone can keep us, one people. At a period but as yesterday, when compared with the life of nations, these States were separate, and, in some respects, opposing colonies, their only relation to each other was that of a common allegiance to the Government of Great Britain. So separate, indeed almost hostile, was their attitude, that when General Stark, of Bennington memory, was captured by savages on the headwaters of the Kennebec, he was subsequently taken by them to Albany, where they went to sell furs, and again led away a captive, without interference on the part of the inhabitants of that neighboring colony to demand or obtain his release. United as we now are, were a citizen of the United States, as an act of hostility to our country, imprisoned or slain in any quarter of the world, whether on land or sea, the people of each and every State of the Union, with one heart and with one voice, would demand redress, and woe be to him against whom a brother’s blood cried to us from the ground. Such is the fruit of the wisdom and the justice with which our fathers bound contending colonies into confederation, and blended different habits and rival interests into a harmonious whole, so that, shoulder to shoulder, they entered on the trial of the Revolution, and step with step trod its thorny paths until they reached the height of national independence, and founded the constitutional representative liberty which is our birthright.

When the mother country entered upon her career of oppression, in disregard of chartered and constitutional rights, our forefathers did not stop to measure the exact weight of the burden, or to ask whether the pressure bore most upon this colony or upon that, but saw in it the infraction of a great principle, the denial of a common right, in defense of which they made common cause—Massachusetts, Virginia, and South Carolina vieing with each other as to who should be foremost in the struggle, where the penalty of failure would be a dishonorable grave. Tempered by the trials and sacrifices of the Revolution, dignified by its noble purposes, elevated by its brilliant triumphs, endeared to each other by its glorious memories, they abandoned the Confederacy, not to fly apart when the outward pressure of hostile fleets and armies were removed, but to draw closer their embrace in the formation of a more perfect Union.

By such men, thus trained and ennobled, our Constitution was framed. It stands a monument of principle, of forecast, and, above all, of that liberality which made each willing to sacrifice local interest, individual prejudice, or temporary good to the general welfare and the perpetuity of the republican institutions which they had passed through fire and blood to secure. The grants were as broad as were necessary for the functions of the general agent, and the mutual concessions were twice blessed, blessing him who gave and him who received. Whatever was necessary for domestic government—requisite in the social organization of each community—was retained by the States and the people thereof; and these it was made the duty of all to defend and maintain. Such, in very general terms, is the rich political legacy our fathers bequeathed to us. Shall we preserve and transmit it to posterity? Yes, yes, the heart responds; and the judgment answers, the task is easily performed. It but requires that each should attend to that which most concerns him, and on which alone he has rightful power to decide and to act; that each should adhere to the terms of a written compact, and that all should coöperate for that which interest, duty, and honor demand.

For the general affairs of our country, both foreign and domestic, we have a national Executive and a national Legislature. Representatives and Senators are chosen by districts and by States, but their acts affect the whole country, and their obligations are to the whole people. He who, holding either seat, would confine his investigations to the mere interests of his immediate constituents, would be derelict to his plain duty; and he who would legislate in hostility to any section, would be morally unfit for the station, and surely an unsafe depository, if not a treacherous guardian, of the inheritance with which we are blessed. No one more than myself recognizes the binding force of the allegiance which the citizen owes to the State of his citizenship, but that State being a party to our compact, a member of the Union, fealty to the Federal Constitution is not in opposition to, but flows from the allegiance due to one of the United States. Washington was not less a Virginian when he commanded at Boston, nor did Gates or Greene weaken the bonds which bound them to their several States by their campaigns in the South. In proportion as a citizen loves his own State, will he strive to honor by preserving her name and her fame free from the tarnish of having failed to observe her obligations and to fulfill her duties to her sister States. Each page of our history is illustrated by the names and deeds of those who have well understood and discharged the obligation. Have we so degenerated that we can no longer emulate their virtues? Have the purposes for which our Union was formed lost their value? Has patriotism ceased to be a virtue, and is narrow sectionalism no longer to be counted a crime? Shall the North not rejoice that the progress of agriculture in the South has given to her great staple the controlling influence of the commerce of the world, and put manufacturing nations under bond to keep the peace with the United States? Shall the South not exult in the fact that the industry and persevering intelligence of the North has placed her mechanical skill in the front ranks of the civilized world—that our mother country, whose haughty Minister, some eighty odd years ago, declared that not a hob-nail should be made in the colonies, which are now the United States, was brought, some four years ago, to recognize our preëminence by sending a commission to examine our workshops and our machinery, to perfect their own manufacture of the arms requisite for their defense? Do not our whole people, interior and seaboard, North, South, East and West, alike feel proud of the hardihood, the enterprise, the skill, and the courage of the Yankee sailor, who has borne our flag far as the ocean bears its foam, and caused the name and character of the United States to be known and respected wherever there is wealth enough to woo commerce and intelligence to honor merit? So long as we preserve and appreciate the achievements of Jefferson and Adams, of Franklin and Madison, of Hamilton, of Hancock, and of Rutledge, men who labored for the whole country, and lived for mankind, we can not sink to the petty strife which would sap the foundations and destroy the political fabric our fathers erected and bequeathed as an inheritance to our posterity forever.

Since the formation of the Constitution a vast extension of territory, and the varied relations arising therefrom, have presented problems which could not have been foreseen. It is just cause for admiration, even wonder, that the provisions of the fundamental law should have been so fully adequate to all the wants of government, new in its organization, and new in many of the principles on which it was founded. Whatever fears may have once existed as to the consequences of territorial expansion must give way before the evidence which the past affords. The General Government, strictly confined to its delegated functions, and the State left in the undisturbed exercise of all else, we have a theory and practice which fits our Government for immeasurable domain, and might, under a millennium of nations, embrace mankind.

From the slope of the Atlantic our population, with ceaseless tide, has poured into the wide and fertile valley of the Mississippi, with eddying whirl has passed to the coast of the Pacific; from the West and the East the tides are rushing toward each other, and the mind is carried to the day when all the cultivable land will be inhabited, and the American people will sigh for more wildernesses to conquer. But there is here a physico-political problem presented for our solution. Were it purely physical your past triumphs would leave but little doubt of your capacity to solve it. A community which, when less than twenty thousand, conceived the grand project of crossing the White Mountains, and unaided, save by the stimulus which jeers and prophecies of failure gave, successfully executed the Herculean work, might well be impatient if it were suggested that a physical problem was before us too difficult for mastery. The history of man teaches that high mountains and wide deserts have resisted the permanent extension of empire, and have formed the immutable boundaries of States. From time to time, under some able leader, have the hordes of the upper plains of Asia swept over the adjacent country, and rolled their conquering columns over Southern Europe. Yet, after the lapse of a few generations, the physical law, to which I have referred, has asserted its supremacy, and the boundaries of those States differ little now from those which were obtained three thousand years ago.

Rome flew her conquering eagles over the then known world, and has now subsided into the little territory on which the great city was originally built. The Alps and the Pyranees have been unable to restrain imperial France; but her expansion was a feverish action, her advance and her retreat were tracked with blood, and those mountain ridges are the reëstablished limits of her empire. Shall the Rocky Mountains prove a dividing barrier to us? Were ours a central consolidated Government, instead of a Union of sovereign States, our fate might be learned from the history of other nations. Thanks to the wisdom and independent spirit of our forefathers, this is not the case. Each State having sole charge of its local interests and domestic affairs, the problem, which to others has been insoluble, to us is made easy. Rapid, safe, and easy communication between the Atlantic and the Pacific will give co-intelligence, unity of interest, and coöperation among all parts of our continent-wide Republic. The net-work of railroads which bind the North and the South, the slope of the Atlantic and the valley of the Mississippi, together testify that our people have the power to perform, in that regard, whatever it is their will to do.

We require a railroad to the States of the Pacific for present uses; the time no doubt will come when we shall have need of two or three, it may be, more. Because of the desert character of the interior country the work will be difficult and expensive. It will require the efforts of a united people. The bickerings of little politicians, the jealousies of sections must give way to dignity of purpose and zeal for the common good. If the object be obstructed by contention and division as to whether the route shall be Northern, Southern, or Central, the handwriting is on the wall, and it requires little skill to see that failure is the interpretation of the inscription. You are practical people, and may ask, How is that contest to be avoided? By taking the question out of the hands of politicians altogether. Let the Government give such aid as it is proper for it to render to the company which shall propose the most feasible plan; then leave to capitalists with judgment, sharpened by interest, the selection of the route, and the difficulties will diminish, as did those which you overcame when you connected your harbor with the Canadian provinces.

It would be to trespass on your kindness and to violate the proprieties of the occasion were I to detain the vast concourse which stands before me by entering on the discussion of controverted topics, or by further indulging in the expression of such reflections as circumstances suggest. I came to your city in quest of health and repose. From the moment I entered it you have showered upon me kindness and hospitality. Though my experience has taught me to anticipate good rather than evil from my fellow-man, it had not prepared me to expect such unremitting attention as has here been bestowed. I have been jocularly asked in relation to my coming here, whether I had secured a guarantee for my safety, and lo! I have found it. I stand in the midst of thousands of my fellow-citizens. But, my friends, I came neither distrusting nor apprehensive, of which you have proof in the fact that I brought with me the objects of tenderest affection and solicitude, my wife and my children; they have shared with me your hospitality, and will alike remain your debtors. If, at some future time, when I am mingled with the dust, and the arm of my infant son has been nerved for deeds of manhood, the storm of war should burst upon your city, I feel that, relying upon his inheriting the instincts of his ancestors and mine, I may pledge him in that perilous hour to stand by your side in the defense of your hearth-stones, and in maintaining the honor of a flag whose constellation, though torn and smoked in many a battle by sea and land, has never been stained with dishonor, and will, I trust, forever fly as free as the breeze which unfolds it.