DEAR SIR,--Your favor of January 2d did not come to my hands until the 5th instant. I concur entirely in your leading principles of gradual emancipation, of establishment on the coast of Africa, and the patronage of our nation until the emigrants shall be able to protect themselves. The subordinate details might be easily arranged. But the bare proposition of purchase by the United States generally, would excite infinite indignation in all the States north of Maryland. The sacrifice must fall on the States alone which hold them; and the difficult question will be how to lessen this so as to reconcile our fellow citizens to it. Personally I am ready and desirous to make any sacrifice which shall ensure their gradual but complete retirement from the State, and effectually, at the same time, establish them elsewhere in freedom and safety. But I have not perceived the growth of this disposition in the rising generation, of which I once had sanguine hopes. No symptoms inform me that it will take place in my day. I leave it, therefore, to time, and not at all without hope that the day will come, equally desirable and welcome to us as to them. Perhaps the proposition now on the carpet at Washington to provide an establishment on the coast of Africa for voluntary emigrations of people of color, may be the corner stone of this future edifice. Praying for its completion as early as may most promote the good of all, I salute you with great esteem and respect. JOHN ADAMS TO THOMAS JEFFERSON. QUINCY, April 19, 1817. DEAR SIR,--My loving and beloved friend Pickering, has been pleased to inform the world that I have "few friends." I wanted to whip the rogue, and I had it in my power, if it had been in my will to do it, till the blood came. But all my real friends, as I thought then, with Dexter and Gray at their head, insisted "that I should not say a word; that nothing that such a person could write would do me the least injury; that it would betray the constitution and the government, if a President, out or in, should enter into a newspaper controversy with one of his ministers, whom he had removed from his office, in justification of himself for that removal, or anything else;" and they talked a great deal about the DIGNITY of the office of President, which I do not find that any other person, public or private regards very much. Nevertheless, I fear that Mr. Pickering's information is too true. It is impossible that any man should run such a gauntlet as I have been driven through, and have many friends at last. This "all who know me know," though I cannot say; who love me, tell.