Explanations on some of the subjects of the conversation, which I had the honor of having with his Excellency, the Count de Vergennes, when I was last at Versailles.

The principal design of that conversation was, to discuss, those articles of commerce which the United States could spare, which are wanted in France, and, if received there on a convenient footing, would be exchanged for the productions of France.  But in the course of the conversation, some circumstances were incidentally mentioned by the Count de Vergennes, which induced me to suppose he had received impressions, neither favorable to us, nor derived from perfect information.

The case of the Chevalier de Mezieres was supposed to furnish an instance of our disregard to treatises; and the event of that case was inferred from opinions supposed to have been given by Mr. Adams and myself.  This is ascribing a weight to our opinions, to which they are not entitled.  They will have no influence on the decision of the case.  The judges in our courts would not suffer them to be read.  Their guide is the law of the land, of which law its treaties make a part.  Indeed, I know not what opinion Mr. Adams may have given on the case.  And, if any be imputed to him derogatory of our regard to the treaty with France, I think his opinion has been misunderstood.  With respect to myself, the doubts which I expressed to the Chevalier de Mezieres, as to the success of his claims, were not founded on any question whether the treaty between France and the United States would be observed.  On the contrary, I venture to pronounce that it will be religiously observed, if his case comes under it.  But I doubted whether it would come under the treaty.  The case, as I understand it, is this.  General Oglethorpe, a British subject, had lands in Georgia.  He died since the peace, having devised these lands to his wife.  His heirs are the Chevalier de Mezieres, son of his eldest sister, and the Marquis de Bellegarde, son of his younger sister.  This case gives rise to legal questions, some of which have not yet been decided, either in England or America, the laws of which countries are nearly the same.

1.  It is a question under the laws of those countries, whether persons born before their separation, and once completely invested, in both, with the character of natural subjects, can ever become aliens in either?  There are respectable opinions on both sides.  If the negative be right, then General Oglethorpe having never become an alien, and having devised his lands to his wife, who, on this supposition, also, was not an alien, the devise has transferred the lands to her, and there is nothing left for the treaty to operate on.