MY DEAR SIR,--I am in receipt of yours of the 27th inst., and thank you for your kindly allusion to myself, in connection with the fearful agitation which now threatens the dismemberment of our government. I think the President's message will meet your approbation, but I little hope that it will accomplish anything in moderating the madness that rules the hour. The indications are that the movement has passed beyond the reach of human control. God alone can disarm the cloud of its lightnings. South Carolina will be out of the Union, and in the armed assertion of a distinct nationality probably before Christmas. This is certain, unless the course of events is arrested by prompt and decided action on the part of the people and Legislatures of the Northern States; the other slave States will follow South Carolina in a few weeks or months. The border States, now so devoted to the Union, will linger a little while; but they will soon unite their fortunes with those of their Southern sisters. Conservative men have now no ground to stand upon, no weapon to battle with. All has been swept from them by the guilty agitations and infamous legislation of the North. I do not anticipate, with any confidence, that the North will act up to the solemn responsibilities of the crisis, by retracing those fatal steps which have conducted us to the very brink of perdition, politically, morally, and financially. There is a feeling growing in the free States which says, "Let the South go!" and this feeling threatens rapidly to increase. It is, in part, the fruit of complete estrangement, and in part a weariness of this perpetual conflict between North and South, which has now lasted, with increasing bitterness, for the last thirty years. The country wants repose, and is willing to purchase it at any sacrifice. Alas for the delusion of the belief that repose will follow the overthrow of the government!