SIR,--Congress have as yet come to no resolution as to the general redemption of paper money. That it is to be redeemed is a principle of which there is no doubt in the mind of any member of Congress, nor of any citizen of the United States. A resolution of Congress taken in a particular case, which stood on the same ground on which the general one will stand, founds a presumption amounting nearly to a certainty that they will pay to the holder of every bill what it cost him, or the person whom he represents at the time of receiving it, with an interest from that time, of six per cent. They have of course established no rule of evidence as to the time of receiving the money. I think, however, that it would be advisable for M. de Lisle, or the representatives of Pileerf, to establish the time at which their money was received by the affidavits of such persons as know it. Those of disinterested persons would be best; but if there is no disinterested person acquainted with the fact, they will do well to take the affidavits of persons interested. It is probable this kind of testimony will be admitted; at any rate it can do no harm, no particular form nor no terms of art are required for these affidavits. It will suffice if they state facts substantially, and that the oath be administered by some person who, by the laws of the country in which it is administered, is authorized to administer an oath. I have the honor to be, Sir, your most obedient humble servant. TO M. DU RIVAL. PARIS, November 7, 1786. SIR,--I am honored with your letter of the 1st instant, enclosing inquiries on the subject of the coins of the United States. Some time during the last year, Congress decided that the Spanish milled dollar should be their money unit, and that their coins should be in a decimal progression above or below that. Some intermediate coins will also be doubtless made for convenience, and indeed they determined that their smallest copper coin should be the two-hundredth part of a dollar. They did not determine how much pure silver their money unit should contain, nor establish the proportion between their silver and gold coins. No other resolutions were entered into, nor had anything been done to effectuate these. What is said, therefore, on this subject in the Courier d'Europe is entirely fable, unless the compiler of that paper has received information of a later date than the middle of August. I do expect that Congress will sometime soon complete their system or resolutions on this subject, and carry them into effect. I have the honor to be, with sentiment of the highest respect, Sir, your most obedient, and most humble servant. P. S. I omitted to observe that most of the gold and silver coins of Europe pass in the several States of America according to the quantity of pure metal they contain. TO M. FAMIN. PARIS, November 11, 1786.