I avail myself of the return of the post which brought me yesterday only your favor of May 22d. to acknowledge it’s reciept. it has been considered as a necessary rule that the President should not give letters of introduction or recommendation to persons going to other parts of the world, and from this rule there has not been a single instance of departure. altho’ prevented by this from fulfilling your request exactly in the form you desire, yet I am happy in being enabled to comply substantially with it. having to write a private letter to Genl. Armstrong, I shall with great pleasure insert in it a paragraph answering the wishes expressed in your letter. this letter will go by the present post to the Secretary of state to be covered with his dispatches. wishing you a pleasant voyage, and all that justice which you have hitherto failed to recieve, I beg leave to tender you my salutations and assurances of great esteem & respect.