There is a complication of interests at present springing up in Europe, which is difficult to fathom. Just now it seems as if the Polish insurrection were being fomented by Austria, at French instigation, in order that the hands of Russia may be tied, so that in case of war with America, we may be deprived of the aid of our great European friend. England sees it in this light, and angrily protests against Prussian interference in the matter. Should a general war result, who would gain by it? Would France avail herself of the opportunity to array her forces against Prussia, and seize the Rhine, and perhaps Belgium? Or would the Emperor avail himself of circumstances to embroil England in a war, and then withdraw to a position of profitable neutrality? Let it be borne in mind, meantime, that it required all the strength of France, England, and Austria, combined, to beat Russia in the Crimea, and that a short prolongation of the war would have witnessed the arrival of vast bodies of Russian troops--many of whom had been nearly a year on the march. Those troops are now far more accessible in case of war. A war between England and the United States, however it might injure us, would be utter ruin to our adversary. With our commerce destroyed, we should still have a vast territory left; but nine tenths of England's prosperity lies within her wooden walls, which would be swept from the ocean. With her exportation destroyed, England would be ruined. We should suffer, unquestionably, but we could hold our own, and would undoubtedly progress as regards manufacturing. But what would become of the British workshops, and how would the British people endure such suffering as never yet befell them? Even with our Southern Rebellion on our hands, and English men-of-war on our coast, we could still, with our merchant marine, bring John Bull to his face. And John Bull knows it.