It would avail us little could we conclude a peace to-morrow, if these aiders and abetters of treason--these foes of all enlightened measures--these worse than open rebels--were to remain among us to destroy by their selfishness and malignity those great measures by which this country is destined to become great. The war is doing us the glorious service of bringing the 'copperheads' before the people in their true light--the light of foes to equality, to the rights of the many, and as perverse friends of all that is anti-American. Who and _what_, indeed, are their leaders! Review them all, from FERNANDO WOOD down to the wretched SAULSBURY, including W. B. REED, in whose veins hereditary traitorous blood seems, with every descent, to have acquired a fresh taint--consider the character which has for years attached to most of them--and then reflect on what a party must be with such leaders! These men have no desire to be brought distinctly before the public; they would by far prefer to burrow in silence. But the war and emancipation have proved an Ithuriel's spear to touch the toad and make him spring up in his full and naturally fiendish form. The sooner and the more distinctly he is seen, the better will it be for the country. We must dispose of rebels abroad and copperheads at home ere we can have peace, and the sooner the country knows its foes, the better will it be for it. We have come at last to either carrying out the great centralizing system of an Union, superior to all States Rights, as commended by Washington, or to division into a thousand petty principalities, each ruled by its WOOD, or other demagogue, who can succeed in securing a majority-mob of adherents! It is with such men and their measures that Gen. GEORGE B. MCCLELLAN, the frequently proposed candidate for the next presidency, is becoming firmly connected in the minds of the people! Fortunately the war has developed the objects of the traitors, and the Union Leagues which are springing up by hundreds over the country are doing good service in making them thoroughly known. Until treason is fairly rooted out at home and abroad, and until _Union at the centre for the people everywhere_ is fully enforced, this war can only be concluded now, to be renewed in tenfold horror to-morrow. * * * * *