Ashland 19th May 1831 Sir I recd. your letter the 6th inst. requesting my opinion on certain questions stated by you in respect to the African portion of our population. I have not time to discuss them at large and must therefore confine myself to a brief reply, upon the condition, suggested by yourself that my letter shall not be a subject of publication. I would refer you to a Speech which I addressed to the Colonization Society of K. in Decr. 1829, published in many of the prints, for my general views of the institution of slavery, and the remedy for the evils incident to it. And to the part I acted on the Missouri question for my opinion of the powers of the Genl. Government in regard to it. The question of emancipation, immediate, or prospective, as a public measure, appertains, in my opinion, exclusively to the several States, each judging and acting for itself, in what slavery exists. More than thirty years ago I was in favor of the adoption in K. of a system similar to that which, at the instance of Franklin, had been previously sanctioned by Penn[s]a. I have never ceased to regret that the decision of this State was adverse to the plan. Slavery is undoubtedly a manifest violation of the rights of man. It can only be justified in America, if at all, by necessity. That it entails innumerable mischiefs upon our Country I think is quite clear. It may become dangerous in particular parts of the Union. But the slaves can never, I think, acquire permanent ascendancy in any part. Congress has no power, as I think, to establish any system of emancipation, gradual or immediate, on behalf of the present or any future generation. The several states alone, according to our existing institutions, are competent to make provision on that subject, as already intimated. With great respect, I am Your obt. Servt. H. Clay Mr John Switzer [address] Mr. John Switzer Union Bridge Frederick County Maryland