Polk was employed to effect the destruction of a "black tariff": General McClellan is employed to destroy a nation that is supposed to be given up to "black republicanism." We do not believe that the soldier will be found so successful an instrument as the civilian proved to be. An ounce of fact is supposed to be worth a ton of theory; and the facts of the last four or five years admit of our believing the worst that can be suspected of the purposes of the Democratic party. It is not uncharitable to say that the leaders and managers of that party contemplate, in the event of their triumph in November, the surrender of the country to the slaveholding oligarchy; in the event of their defeat by a small majority, the extension of the civil war over the North. Four years ago we could not be made to believe that Secession was a possible thing. We admitted that there were Secessionists at the South, but we could not be made to believe in the possibility of Secession. Even "South Carolina couldn't be kicked out of the Union," it was commonly said in the North. There were but few disunionists at the South, almost everybody said, and almost everybody believed what was said concerning the state of Southern opinion. In a few weeks we saw, not South Carolina kicked out of the Union, but South Carolina kicking the Union away from her. In a few months we saw eleven States take themselves out of the Union, form themselves into a Confederacy, and raise great armies to fight against the Union. Yet it is certain that in the month of November, 1860, there were not twenty thousand resolute disunionists in all the Slaveholding States, leaving South Carolina and Mississippi aside,--and not above fifty thousand in all the South, including Mississippi and South Carolina. How, then, came it to pass that nearly the whole of the population of the South became Rebels in so short a time? Because they were under the dominion of their leading men, who took them from the right road, and conducted them into the slough of rebellion. Because they were encouraged so to act by the Northern Democracy as made rebellion inevitable. The Northern Democratic press and Northern Democratic orators held such language respecting "Southern rights" as induced even loyal Southrons to suppose that Slavery was to be openly recognized by the Constitution, and spread over the nation. The President of the United States, a Northern Democrat, gravely declared that there existed no right in the Government to coerce a seceding State, which was all that the most determined Secessionist could ask. Instead of doing anything to strengthen the position of the federal Government, the President did all that he could to assist the Secessionists, and left the country naked to their attacks; and he parted on the best of terms with those Rebels who left his Cabinet, where they had long been busy in organizing resistance to Federal authority. The leaders of the Northern Democracy, far from exhibiting a