SIR: I inclose an extract[11] of a letter received at this Department from the governor of Maine, by which you will perceive that a citizen of that State, named Ebenezer S. Greely, while employed, in virtue of an appointment under one of its laws, in making an enumeration of the inhabitants upon a part of the territory claimed as being within the limits of the State, was seized by order of the authorities of the Province of New Brunswick on the 6th of June last and imprisoned in the public jail of Frederickton, where he still remains. I also transmit a copy of sundry documents relating to his arrest and detention.[12] This outrage upon the personal liberty of one of its citizens has actually caused great excitement in Maine, and has produced an urgent appeal to the General Government for its intervention in procuring redress for what is considered an unprovoked and unjustifiable aggression. This arrest was made on a part of the territory in dispute between the United States and Great Britain, and could only have been justified in the existing state of that controversy by some plain infringement of the understanding which exists between the parties, that until the settlement of the question of right there shall be no extension of jurisdiction on either side within the disputed limits. It is not perceived how the simple enumeration of the inhabitants, about which Mr. Greely was employed, could be construed as a breach of that understanding, and it is expected that the Government of Great Britain will promptly mark its disapproval of this act of violence committed by the provincial authorities, so inconsistent with those amicable feelings under which the negotiation respecting the controverted boundary has been hitherto conducted, and so essential to bring it to a happy termination. You are directed immediately upon the receipt of this dispatch to bring the subject to the notice of His Majesty's Government, and to demand as a matter of justice and right the prompt release of Mr. Greely and a suitable indemnity for his imprisonment. [Footnote 11: Omitted.] [Footnote 12: Omitted.] _Mr. Stevenson to Mr. Forsyth_. [Extract.] LEGATION OF THE UNITED STATES, _London, August 21, 1837_. SIR: I received by the last packet to Liverpool your dispatch of the 12th of July (No. 21), transmitting copies of the documents and correspondence in relation to the arrest and imprisonment of Mr. Greely, a citizen of Maine, by the authorities of New Brunswick. In pursuance of your instructions, I lost no time in presenting the subject to the consideration of the Government, and herewith transmit to you a copy of my note to Lord Palmerston, to which no answer has yet been received. You will see that I waived for the present the discussion of the question of right and jurisdiction, and contented myself with presenting the facts of the case and demanding the immediate release of Mr. Greely and indemnity for the injuries which he had sustained.