DEAR GENERAL,--The absence of General Dearborne and his great distance render it necessary to recommend a measure which should regularly go from him, but will not admit of that delay. The armed resistance to the embargo laws on the Canada line induced us at an early period to determine that the new recruits of the northern States should be rendezvoused there, and I presume you received such instructions from General Dearborne. In the meantime we have been obliged to make several detachments of militia to points on that line. This is irksome to them, expensive, troublesome, and less efficacious. Understanding that there are three companies of new recruits filled, or nearly filled, at New York, I must pray you to order these, and indeed all the recruits of the State of New York, to Sackett's Harbor, Oswegatchie, and Plattsburgh, in equal proportions to each, in order to support the collectors in the execution of their duties, and this without any avoidable delay, giving notice to Governor Tompkins of their march and time of probable arrival at their destination, that he may give corresponding orders respecting the relief of the militia. I salute you with esteem and respect. TO THE SECRETARY OF THE TREASURY. MONTICELLO, August 30, 1808. DEAR SIR,-- * * * * * Mr. Madison and myself on repeated consultations, (and some of the other members of the executive expressed the same opinion before they left Washington,) have concluded that the mission to Petersburgh should not be delayed. Being special, and not permanent, the waiting the meeting of the Senate is less important, and, if we waited, that it could not go till spring, and we know not what this summer and the ensuing winter may produce. We think secrecy also important, and that the mission should be as little known as possible, till it is in Petersburgh, which could not be, if known to the Senate. Mr. Short goes therefore in the aviso from Philadelphia, to be engaged for September 15th. He is peculiarly distressed by sickness at sea, and of course more so the smaller the vessel. I think, therefore, the occasion justifies the enlargement of our vessel somewhat beyond what might be necessary for a mere aviso. The season, too, by the time of her return, might render it desirable for safety, which circumstance may be mentioned in your instructions to the collector, to prevent his suspicions of the real ground. I salute you with affection and respect. TO THE SECRETARY OF STATE. MONTICELLO, September 5, 1808.