We beg leave to congratulate your Excellency on your safe arrival in Europe. By principle warmly attached to the American cause, we could wish that we saw our States in a situation to acknowledge the independence of their sister Republic, and though we could only cultivate private connexions as yet, we took the liberty to address some intelligence to your Excellency when President of Congress. We should reckon ourselves extremely happy to know whether our letter came to hand before your Excellency left Philadelphia, and whether we may form any hopes that our zeal may prove successful for the benefit, as we intended, of both countries. Meanwhile we have the honor to be, with all possible regard, &c. JOHN DE NEUFVILLE & SON. * * * * * ANSWER TO DE NEUFVILLE & SON. Madrid, April 27th, 1780. Gentlemen, I have had the pleasure of receiving your favor of the 6th instant, and am much obliged by your kind congratulations on my arrival in Europe. The letters you mention to have written to Congress had been received before I left Philadelphia, and referred to a committee. This mark of attention was justly due to the interest you take in the American cause, and the disposition you manifest to serve it. I presume that the committee soon made a report, and that answers to your letters have been written, although perhaps the many hazards to which letters from America are exposed may have prevented their reaching you. When the rulers of your republic recollect in what manner and on what occasion they became free, I am persuaded they cannot but wish duration to our independence, nor forbear considering it as an event no less interesting to every commercial nation in Europe than important to America. These and similar considerations, added to the injustice they daily experience from England, will, I hope, induce them to call to mind that spirit of their forefathers, which acquired a glorious participation in the empire of the ocean, and laid the foundation of the commerce, affluence, and consideration they transmitted to their posterity. Permit me to assure you that I shall consider your correspondence as a favor, and that I am, with great respect, &c. JOHN JAY. * * * * * TO THE PRESIDENT OF CONGRESS. Madrid, May 26th, 1780. Sir, Since my departure from America I have had the honor of writing the following letters to your Excellency, viz. 20th, 22d, 24th, 25th, 25th, 26th and 27th of December, 1779, from Martinique; and 27th of January, 20th, 28th and 29th of February, and 3d of March, 1780, from Cadiz. I am still uncertain whether any, and which of them, have come to your hands, and request the favor of particular information on this subject.