The suspension of the right of deposite at New Orleans, ceded, to us by our treaty with Spain, threw our whole country into such a ferment as imminently threatened its peace.  This, however, was believed to be the act of the Intendant, unauthorized by his government.  But it showed the necessity of making effectual arrangements, to secure the peace of the two countries against the indiscreet acts of subordinate agents.  The urgency of the case, as well as the public spirit, therefore, induced us to make a more solemn appeal to the justice and judgment of our neighbors, by sending a minister extraordinary to impress them with the necessity of some arrangement.  Mr. Monroe has been selected.  His good dispositions cannot be doubted.  Multiplied conversations with him, and views of the subject taken in all the shapes in which it can present itself, have possessed him with our estimates of every thing relating to it, with a minuteness which no written communication to Mr. Livingston could ever have attained.  These will prepare them to meet and decide on every form of proposition which can occur, without awaiting new instructions from hence, which might draw to an indefinite length a discussion where circumstances imperiously oblige us to a prompt decision.  For the occlusion of the Mississippi is a state of things in which we cannot exist.  He goes, therefore, joined with Chancellor Livingston, to aid in the issue of a crisis the most important the United States have ever met since their independence, and which is to decide their future character and career.  The confidence which the government of France reposes in you, will undoubtedly give great weight to your information.  An equal confidence on our part, founded on your knowledge of the subject, your just views of it, your good dispositions towards this country, and my long experience of your personal faith and friendship, assures me that you will render between us all the good offices in your power.  The interests of the two countries being absolutely the same as to this matter, your aid may be conscientiously given.  It will often, perhaps, be possible for you, having a freedom of communication, omnibus horis, which diplomatic gentlemen will be excluded from by forms, to smooth difficulties by representations and reasonings, which would be received with more suspicion from them.  You will thereby render great good to both countries.  For our circumstances are so imperious as to admit of no delay as to our course; and the use of the Mississippi so indispensable, that we cannot hesitate one moment to hazard our existence for its maintenance.  If we fail in this effort to put it beyond the reach of accident, we see the destinies we have to run, and prepare at once for them.  Not but that we shall still endeavor to go on in peace and friendship with our neighbors as long as we can, if our rights of navigation and deposite are respected; but as we foresee that the caprices of the local officers, and