So urgent is the pressure on the public mind of the successive events which demand attention each as it presents itself, that the formidable difficulties growing out of the destruction of the "Caroline" and the arrest of McLeod are already fading from recollection. They formed, in reality, a crisis of a most serious and delicate character. A glance at the correspondence of the two governments at Washington and London sufficiently shows this to be the case. The violation of the territory of the United States in the destruction of the "Caroline," however unwarrantable the conduct of the "sympathizers" which provoked it, became, from the moment the British government assumed the responsibility of the act, an incident of the gravest character. On the other hand, the inability of the government of the United States to extricate McLeod from the risks of a capital trial in a State court, although the government of England demanded his liberation on the ground that he was acting under the legal orders of his superior, presented a difficulty in the working of our system equally novel and important. Other cases had arisen in which important constitutional principles had failed to take effect, for want of the requisite legislative provisions. It is believed that this was the first time in which a difficulty of this kind had presented itself in our foreign relations. A more threatening one can scarcely be imagined. In addition to the embarrassment occasioned by the refusal of the executive and judiciary of New York to yield to the representations of the general government, the violent interference of the mob presented new difficulties of the most deplorable character. If McLeod had been executed, it is not too much to say, that war would at once have ensued. His acquittal averted this impending danger. The conciliatory spirit cannot be too warmly commended with which, on the one hand, the proper reparation was made by Lord Ashburton for the violation of the American territory, and, on the other hand, Congress, by the passage of an appropriate law, provided an effectual legislative remedy for any future similar case. They show with what simplicity and ease the greatest evils may be averted, and the most desirable ends achieved, by statesmen and governments animated by a sincere desire to promote the welfare of those who have placed power in their hands, not for selfish, party purposes, but for the public good.