SIR,--The representation of the county of Jefferson, in New York, of which you are chairman, stating their want of arms, and asking a supply, has been duly received and considered. I learn with great concern that a portion of our frontier so interesting, so important, and so exposed, should be so entirely unprovided with common fire-arms. I did not suppose any part of the United States so destitute of what is considered as among the first necessaries of a farm-house. This circumstance gives me the more concern as the laws of the United States do not permit their arms to be delivered from the magazines but to troops actually taking the field; and, indeed, were the inhabitants on the whole of our frontier, of so many thousands of miles, to be furnished from our magazines, little would be left in them for actual war. For the ordinary safety of the citizens of the several States, whether against dangers from within or without, reliance has been placed either on the domestic means of the individuals, or on those provided by the respective States. What those means are in the State of New York, I am not informed; but I have transmitted your representation to Governor Tomkins, with an earnest recommendation of it to his attention; and I have no doubt that his solicitude for the welfare and safety of a portion so eminently exposed of those under his immediate care, will ensure to you whatever his authority and his means will permit. That an attack should be made on you by your neighbors, while the state of peace continues, cannot be supposed; nor is it certain that that condition of things will be interrupted. Should, however, war take place, if first declared by us, your safety will of course have been previously provided for: if by the other party, it cannot be before the measures now in preparation will be in readiness to secure you. Should our present differences be amicably settled, a new post on the St. Lawrence, as near our northern boundary as a good position can be found, will be worthy of consideration. At present it would only produce a greater accumulation of hostile force in your neighborhood, and if we should have war, it would soon become unimportant. On the whole, while I am in hopes that your State will provide by the loan of arms, for your immediate safety and confidence, you may be assured that such measures shall be in readiness, and in reach, on the part of the General Government, as aided by your own efforts, will effectually secure you from the dangers you apprehend. I cannot conclude without expressing to you the satisfaction with which I have received the patriotic assurance of your best services, should they be needed in your country's cause. They are worthy of the citizens of a free country, who know and properly estimate the value of self-government, and are the more acceptable as from a quarter where they will be most important.