[Copy of a Letter from the Secretary of War, to His Excellency Arthur St. Clair, Governor of the Northwestern Territory, dated Germantown, near Philadelphia, November 9^th 1792.] Sir, I have the honor to transmit a copy of a letter written by the Secretary of State to the Governor of Kentucky relatively to the design of certain frenchmen mentioned therein to excite some military enterprize against the possessions of Spain upon the Mississippi, with which Power the United States are at Peace. The President of the United States has instructed me to request, that you would consider the letter to the Governor of Kentucky as written to yourself, and that you take all the measures in the course of the laws for the prevention of the design, in the manner suggested by the Secretary of State. But if the design should have assumed such an aspect as to bid defiance to the operation of the laws, that then you use the Militia of your government to prevent the progress of the design, or that you request the Officer commanding the Troops of the United States in your neighbourhood,