A cession of the navigation of the Mississippi, with such privileges as to make it useful, and free from future chicane, can be no longer dispensed with on our part; and perhaps while I am writing, something may have already happened to cut off this appeal to friendly accommodation. To what consequences such an event would lead, cannot be calculated. To such, very possibly, as we should lament, without being able to control. Your earnestness with Monsieur de Montmorin, and with the court of Spain, cannot be more pressing than the present situation and temper of this country requires. The case of St. Marie happens to be the incident presenting itself in the moment, when the general question must otherwise have been brought forward. We rely, on this occasion, on the good offices of the Marquis de La Fayette, whom you are desired to interest in it. I am, with sincere and great esteem, dear Sir, your most obedient, and most humble servant. TO COLONEL INNES. Philadelphia, March 13, 1791. Dear Sir,-- * * * * * What is said with you of the most prominent proceedings of the last Congress? The disapprobation of the assumption with you leads us naturally to attend to your reception of laws for carrying it into effect, which have been thought to present themselves in an unfavorable view. What will be thought of measures taken to force Great Britain by a navigation act, to come forward in fair treaty, and let us substantially into her islands, as a price for the advantages of navigation and commerce which she now derives from us? This is interesting to our agriculture, provided the means adopted be sufficiently gradual. I wish you would come forward to the federal legislature and give your assistance on a larger scale than that on which you are acting at present. I am satisfied you could render essential service; and I have such confidence in the purity of your republicanism, that I know your efforts would go in a right direction. Zeal and talents added to the republican scale will do no harm in Congress. It is fortunate that our first executive magistrate is purely and zealously republican. We cannot expect all his successors to be so, and therefore should avail ourselves the present day to establish principles and examples which may fence us against future heresies preached now, to be practised hereafter. I repeat my wish that I could see you come into the federal councils; no man living joining more confidence in your principles and talents to higher personal esteem than, dear Sir, your most obedient humble servant. TO WILLIAM SHORT. Philadelphia, March 15, 1791.