Mr. Fox to Mr. Forsyth.

WASHINGTON, March 7, 1840.

The undersigned, Her Britannic Majesty's envoy extraordinary and minister plenipotentiary, has the honor to acknowledge the receipt of the official note of yesterday's date addressed to him by Mr. Forsyth, Secretary of State of the United States, to which is annexed the copy of a report from Mr. Benjamin Wiggin, an agent employed by the State of Maine to visit the British military post at Lake Temiscouata, and in which reference is made to other papers upon the same subject, which were informally communicated to the undersigned by Mr. Forsyth a few days before; and the attention of the undersigned is called by Mr. Forsyth to different points upon which the information contained in the said papers is considered to be materially at variance with that which was conveyed to the United States Government by the undersigned in his official note of the 26th of last January.

The undersigned had already been made acquainted by the lieutenant-governor of New Brunswick with the circumstance of Mr. Wiggin's visit to the military post at Lake Temiscouata, where the officer in command very properly furnished to Mr. Wiggin the requisite information upon all matters connected with the British station which he appeared desirous to inquire about.

The alleged points of variance, after deducting what is fanciful and conjectural in the reports now produced and after comparing what is there stated in contradiction to other reports before produced from the same quarters, do not appear to the undersigned to be by any means so material as they seem to have been considered by the Government of the United States. The British military detachment stationed at Lake Temiscouata, which the agents employed by the State of Maine had, in the first instance with singular exaggeration represented as amounting to two regiments, is now discovered by the same parties to amount to 175 men, which instead of two regiments is something less than two companies. It is indeed true, should such a point be considered worth discussing, that the undersigned might have used a more technically correct expression in his note of the 26th of January if he had stated the detachment in question to consist of from one to two companies instead of stating it to consist of one company. But a detachment of Her Majesty's troops has been stationed at the Lake Temiscouata from time to time ever since the winter of 1837 and 1838, when the necessity arose from marching reenforcements by that route from New Brunswick to Canada; and it will be remembered that a temporary right of using that route for the same purpose was expressly reserved to Great Britain in the provisional agreement entered into at the beginning of last year.

It is not, therefore, true that the stationing a military force at the Lake Temiscouata is a new measure on the part of Her Majesty's authorities; neither is it true that that measure has been adopted for other purposes than to maintain the security of the customary line of communication and to protect the buildings, stores, and accommodations provided for the use of Her Majesty's troops when on march by that route; and it was with a view to correct misapprehensions which appeared to exist upon these points, and thus to do away with one needless occasion of dispute, that the undersigned conveyed to the United States Government the information contained in his note of the 26th of January.

With regard again to the construction of barracks and other buildings and the preserving them in an efficient state of repair and defense, a similar degree of error and misapprehension appears still to prevail in the minds of the American authorities.

The erection of those buildings within the portion of the disputed territory now referred to, for the shelter of Her Majesty's troops while on their march and for the safe lodgment of the stores, is no new act on the part of Her Majesty's authorities. The buildings in question have been in the course of construction from a period antecedent to the provisional agreements of last year, and they are now maintained and occupied along the line of march with a view to the same objects above specified, for which the small detachments of troops also referred to are in like manner there stationed.

The undersigned will not refrain from here remarking upon one point of comparison exhibited in the present controversy. It is admitted by the United States authorities that the armed bands stationed by the government of Maine in the neighborhood of the Aroostook River have fortified those stations with artillery, and it is now objected as matter of complaint against the British authorities with reference to the buildings at Lake Temiscouata, not that those buildings are furnished with artillery, but only that they are defended by palisades capable of resisting artillery. It would be difficult to adduce stronger evidence of the acts on the one side being those of aggression and on the other of defense.

The fact, shortly, is (and this is the essential point of the argument) that Her Majesty's authorities have not as yet altered their state of preparation or strengthened their military means within the disputed territory with a view to settling the question of the boundary, although the attitude assumed by the State of Maine with reference to that question would be a clear justification of such measures, and it is much to be apprehended that the adoption of such measures will sooner or later become indispensable if the people of Maine be not compelled to desist from the extensive system of armed aggression which they are continuing to carry on in other parts of the same disputed territory.