We have thus hastily sketched the character and indicated the resources of that great Northwest, which, little more than fifty years ago a wilderness, is now a cluster of republics holding more than the balance of power in the Union. Idle speculatists, terrified by the violence of South Carolina, and believing that on her withdrawal the sky is to fall, are already predicting the dismemberment of East and West. But we think the chance of it is growing less, year by year. The two are now bound indissolubly together by lines of railroad, which, during a part of the year, are the most convenient outlet of the West toward the sea. Those States, just as they are arriving at a controlling influence in the affairs of a great and powerful nation, are hardly likely to seclude themselves from the rest of the world in what would, from its position, be at best an insignificant republic. * * * * * E PLURIBUS UNUM. We do not believe that any government--no, not the Rump Parliament on its last legs--ever showed such pitiful inadequacy as our own during the past two months. Helpless beyond measure in all the duties of practical statesmanship, its members or their dependants have given proof of remarkable energy in the single department of peculation; and there, not content with the slow methods of the old-fashioned defaulter, who helped himself only to what there was, they have contrived to steal what there was going to be, and have peculated in advance by a kind of official post-obit. So thoroughly has the credit of the most solvent nation in the world been shaken, that an administration which still talks of paying a hundred millions for Cuba is unable to raise a loan of five millions for the current expenses of Government. Nor is this the worst; the moral bankruptcy at Washington is more complete and disastrous than the financial, and for the first time in our history the Executive is suspected of complicity in a treasonable plot against the very life of the nation.