MONTICELLO, August 15, 1808. DEAR SIR,--Yours of the 6th and 9th, are just now received, as well as a letter from Governor Tompkins on the subject of aiding the revenue officers on the Canada line with militia. I refer you on this subject to my answer to him, and pray you to encourage strongly his going to the spot himself, and acting according to the urgencies which will present themselves there. Should you have satisfactory evidence of either _mala fides_ or negligence in Pease, he shall be removed without ceremony. I do not know the residence of Greene of Massachusetts. The opinion you have given in the case stated by Ellery is certainly correct. No civil officer of the States can take cognizance of a federal case. Considering our determination to let no more vessels go so far as the Cape of Good Hope, I see nothing in the case of the brig Resolution, Craycroft, to justify a change of the rule, and therefore cannot consent to a vessel's being sent there. The case of the Chinese Mandarin is so entirely distinct, that it can give no ground for this claim. The opportunity hoped from that, of making known through one of its own characters of note, our nation, our circumstances and character, and of letting that government understand at length the difference between us and the English, and separate us in its policy, rendered that measure a diplomatic one in my view, and likely to bring lasting advantage to our merchants and commerce with that country. I enclose you the rough draught of a letter I have written to Governor Sullivan, in answer to two of his. It was done on consultation with Mr. Madison. I informed you in mine of the 11th that I had directed a commission for General Steele as successor to Shee. This was certainly according to what had been agreed upon at Washington, the event of Shee's death being then foreseen and made the subject of consultation with yourself, Mr. Rodney, and, I believe, Mr. Madison. The call for the militia from all the States having been agreed on in April, I have taken for granted it was going on. I will look to it, as also to the fortifications of New York. I salute you with affection and respect. TO GOVERNOR CLAIBORNE. MONTICELLO, August 16, 1808.