What is to be said of Poland and the situation of her heroic, unhappy sons, you well know, having been a constant and zealous member of our committee. You know what sort of mental perturbation, among the ignorant part of every European nation, has accompanied the visit of the cholera in Russia, Germany, Hungary, and several parts of Great Britain and France-- suspicions of poison, prejudices against the politicians, and so forth. I would tike to know whether the population of the United States has been quite free of these aberrations, as it would be an additional argument in behalf of republican institutions and superior civilization resulting from them. Most truly and affectionately, Your friend, LAFAYETTE As we see from the beginning of this letter, Morse had now determined to return home. He had executed all the commissions for copies which had been given to him, and his ambitious painting of the interior of the Louvre was so far finished that he could complete it at home. He sailed from Havre on the 1st of October in the packetship Sully. The name of this ship has now become historic, and a chance conversation in mid-ocean was destined to mark an epoch in human evolution. Before sailing, however, he made a flying trip to England, and he writes to his brothers from London on September 21:-- "Here I am once more in England and on the wing _home_. I shall probably sail from Havre in the packet of October 1 (the Sully), and I shall leave London for Southampton and Havre on the 26th inst., to be prepared for sailing. "I am visiting old friends and renewing old associations in London. Twenty years make a vast difference as well in the aspect of this great city as in the faces of old acquaintances. London may be said literally to have gone into the country. Where I once was accustomed to walk in the fields, so far out of town as even to shoot at a target against the trees with impunity, now there are spacious streets and splendid houses and gardens. "I spend a good deal of my spare time with Leslie. He is the same amiable, intelligent, unassuming gentleman that I left in 1815. He is painting a little picture--'Sterne recovering his Manuscripts from the Curls of his Hostess at Lyons.' I have been sitting to him for the head of Sterne, whom he thinks I resemble very strongly. At any rate, he has made no alteration in the character of the face from the one he had drawn from Sterne's portrait, and has simply attended to the expression.