_From another letter of the same date._--That when this letter was written, the Court had received information of the sentiments of the Court of London with respect to the United States. The Count de Vergennes mentions, that in the act, by which the Court of London accepts the mediation of Russia, and requests the mediation of the Emperor, she declares, that she is ready to make peace, _as soon as the league between France and her revolted subjects shall be dissolved_. That this pretension had met from the Court of France the contempt which it deserved. She on her part has declared, that if this proposition contained the last determination of England, it would be in vain to think of peace; and she has desired the English Ministry to give a positive answer on the two questions above mentioned. That this declaration had been exactly transmitted by the Court of Vienna to that of London; and the result of the answer made by that Court to the Imperial Majesty is, "_that in all points to be agitated in a future Congress, England will behave with great equity and condescension; but the dependence of her rebel subjects in America must be pre-established, and that this matter must be left entirely to the care of Great Britain._" That it is easily to be perceived, that while things remain in this situation there can be no possibility of a mediation or peace. The Count de Vergennes remarks, that Congress will be finally convinced, that it is only by arms and the most vigorous exertions, that our independence can be extorted from the Court of London, and not at all by negotiation or persuasion. That the Court of France will transmit to the Court of Vienna the sentiments of the King on the British answer. That if these sentiments should be forwarded to the Court of London without any commentary, it is probable they would make but a slight impression; but it may be hoped from the justice of his Imperial Majesty, that they will be so supported by such reflections as to make a greater impression on the British Court; although it is not to be expected, that the Austrian Court will fully enter into the views of his Most Christian Majesty, until the matter shall be more perfectly explained. The Count, nevertheless, urges the necessity of sending forward proper instructions and powers for the mediation. _From a letter of the 11th of May._--That the affair of the mediation has made no progress; and that it is very probable, that the mediators will not be soon enabled to begin the negotiation. That the admission of an American Plenipotentiary presents the greatest difficulties. That the Count, however, will take every measure in his power to have this admission decided in favor of the United States, before the regular opening of the mediation. The Count urges the Chevalier de la Luzerne to observe to Congress, that the best manner of removing these obstacles would be a _decisive victory_, gained by the United States in the present campaign.