In carrying into execution the provisions of Congress, at their last session, for fortifying on a just view of the relative importance of the places, combined with their degree of exposure, and capability of defence, and in such way as to require a moderate permanent force of regulars, relying much, in case of sudden attack on the aid of the militia. Among the objects of our care, New York stands foremost in the points of importance and exposure; and, if permitted, we shall provide such defences for it as, in our opinion, will render it secure against attacks by sea. The particulars of what is proposed to be done can be made known to you by Colonel Williams, as it is probable these may not comprehend everything which the anxieties of the citizens might think of service in their defence. I suggest for your consideration, the idea of applying the fund appropriated to this object, by your legislature, to such supplementary provisions as in your judgment might be necessary to render ours adequate to fulfil the views and confidence of your citizens. Of this however, you are the best judge. But I cannot omit to urge that no time should be lost in deciding on so much of the plan proposed by the Secretary at War, as depends on a cession from the State authorities. It appears to me that it would be well to have a post on the Saint Lawrence, as near our line as a commanding position could be found, that it might afford some cover for our most advanced inhabitants. But if a rupture takes place now, such a post would too soon lose all its value, to be worth building at this time. It is only in the event of a solid accommodation with Great Britain, and their retaining their present possessions, that it might become worthy of attention. I do not know that the $20,000 appropriated by the State of New York, "to aid in, and contribute to, the defence of the northern and western frontiers," could be better applied than as supplementary to our provisions in this quarter also. We cannot, for instance, deliver out our arms to the militia, until called into the field. Yet it would be a great security had every militia man on these frontiers a good musket in his hands. However, here again your Excellency is the best judge, and I have hazarded these ideas as to the application of the appropriations, only on the wish you expressed that I would do it, and on my own desire to interchange ideas with frankness, and without reserve with those charged, in common with myself with the public interests. I beg leave to tender you the assurances of my high esteem and respect. TO ----. May 5, 1808. GREAT AND GOOD FRIEND,--Having learnt the safe arrival of your Royal Highness at the city of Rio Janeiro, I perform with pleasure the duty of offering you my sincere congratulations by Mr. Hill, a respected citizen of the United States, who is specially charged with the delivery of this letter.