I have repeatedly seen Mr Hopkins, formerly of Maryland, now advanced to be a brigadier general in this service; he talks of coming out to America; should the Duc de Choiseul, who is his friend and patron, come into the lead of administration, he might come out to advantage. Insurance from London to Jamaica is 20 per cent. If a few of our cruizers should venture on this coast they might do very well, as they would find protection in the harbors of this kingdom. Coming ostensibly for the purpose only of commerce or otherwise, no questions would be asked, and they might wait until an opportunity offered (of which they might be minutely informed,) and then strike something to the purpose. I give this hint to individuals, rather than to the honorable Congress as a body. The bearer, Mr McCreary, has obliged me by copying my memoir, which I send herewith. It has had a great run among the ministers of this and some other courts in a private way. M. Beaumarchais writes by this opportunity; he has shown me his letter, and I have agreed in general to the contents, not understanding any exclusive privilege for his house. Every thing he says, writes, or does, is in reality the action of the ministry, for that a man should but a few months since confine himself from his creditors, and now on this occasion be able to advance half a million, is so extraordinary that it ceases to be a mystery. M. Coudray was not in the Turkish service as I was informed; it was a gentleman who proposes accompanying him, but he is an officer of the first eminence, an adjutant general in the French service, and his prospects here of rising are exceeding good; but he is dissatisfied with an idle life. His proposals in general have been, that he should be general of the artillery, and subject only to the orders of congress or their committee of war, or of their commander in chief of the army where he might be. In the next place, that he should rank as major general, and have the same wages, &c. coming in as youngest major general for the present, and rising of course.