A late publication in the _Courier de l'Europe_, extracted from Rivington's Gazette, asserting a mutiny of a considerable number of continental troops in the beginning of January, made considerable impression here, which happily we have had it in our power to remove by some arrivals from the northward. Considerable apprehensions and jealousies are entertained of the views of the States, of forming powerful establishments on the Ohio and Mississippi, in consequence of some publications in our papers, and other advices received by the Court, which has much better and more regular intelligence of our affairs than Mr Jay. This must be the case as long as the letters of Congress are confided to the common post in France and in this country. The difference of expense could not be so considerable to the public, as might be conceived, and the advantages are important. I am persuaded the Ministers of the above named nations, receive more information from the letters written to the public servants of Congress in Europe, than from those they employ in America. All the couriers of the Empress of Russia are officers of her army. We have at present, I presume, many young men on half pay in consequence of the late arrangements of our army, who would be happy to make these voyages in the public packets, who might be limited or brought to strict account for their expenses, and receive instructions from the Committee to answer public purposes, and be promoted or disgraced according to their execution of them. I beg the Committee will impute these suggestions to the true motive, a regard to the public service. I have the honor to be, &c. WILLIAM CARMICHAEL. * * * * * TO THE COMMITTEE OF FOREIGN AFFAIRS. Madrid, March 11th, 1781. Gentlemen, Since my last of the 4th instant, I know of a certainty, that Mr Cumberland, so often mentioned in former letters, will soon leave this kingdom, and pursue his voyage to England by way of France. His departure would indicate, that all negotiations for an accommodation were at an end, if there was not reason to believe, that conferences on that subject are likely to take place in consequence of the offer of mediation made to the belligerent powers by the Emperor. As I have not the last mentioned intelligence from our _friends_, I give it with hesitation and not as certain. In a little time I hope to have it in my power, to give fuller information to the Committee on this subject.