The empress talked very freely. She spoke on several subjects, and with great rapidity. Amongst other things she observed we were wise in America not to involve ourselves in the foolish troubles of Europe; but she added that we had troubles enough among ourselves at home, and alluded to our difficulties with some of the Southern States. I endeavored in a few words to explain this subject to her; but she still persisted in expressing the same opinion, and, of course, I would not argue the point. The truth is, that the people of Europe, and more especially those of this country, cannot be made to understand the operations of our Government. Upon hearing of any severe conflicts of opinion in the United States, they believe what they wish, that a revolution may be the consequence. God forbid that the Union should be in any danger! If unfortunate events should occur tending to destroy the influence of our example, constitutional liberty throughout the rest of the world would receive a blow from which it might never recover. In making these remarks, I do not mean to state that the Russian government are unfriendly to the people of the United States; on the contrary, I believe they prefer us decidedly either to the English or French; but yet they must attribute to our example the existence of those liberal principles in Europe which give them so much trouble. Upon the whole, my interview with the empress was quite agreeable. There are three ambassadors at this court: Lord Heytesbury, the English; the Marshal Duke of Treviso (Mortier), the French; and Count Figlemont, the Austrian; and a number of ministers plenipotentiary of my own grade. In point of rank I am at the tail of the list, and I should be very sorry to suppose I would ever reach the head. The rule upon this subject, however, is wholly unexceptionable: the minister who has been longest here ranks the highest in his own grade. The Diplomatic Corps have received me very kindly. This I may attribute to the high character my country is everywhere acquiring. Your foreign policy has had no small influence on public opinion throughout Europe. It is supposed Marshal Mortier is not very agreeable to this government: he is the officer who blew up the Kremlin. I have taken a comfortable and well-furnished house in a beautiful situation fronting on the Neva, to which I expect to remove next week. My family will consist of Mr. J. Randolph Clay [Secretary of the Legation], whom I have invited to live with me, Lieutenant Barry [private secretary], and myself. My expenses will be great, but I shall endeavor to keep them within my outfit and salary.