Dear Sir, ー I have to acknowledge the receipt of yours of the 13th ult. I make no doubt of your pressure by the important concerns lying before you, many of which I trust if you had leisure you might not communicate; but with regard to the matter of principal concern, if the Philosopher's Lanthorn may be attained, and will give a better light than what is proposed, should be glad you would get what knowledge you can from Dr. Franklin respecting it. Light is of absolute necessity; not to perform the operation, ー that can be effected, if he hits the object right, as well in the dark as at noon day, ー but to get free from the object when the operation is performed, ー for this, light is absolutely necessary, what point to steer, and to know whether he rises or sinks deeper, for the personal safety of the operator. You will well understand my meaning, if I am not more explicit. I have lately seen the man, and conversed freely with him. He is no enthusiast; a perfect philosopher, and by rio means doubtful of succeeding. I wish Col. Dyer and you were to remain where you are, even altho' the other gentlemen were added. I have no objection to that addition, but if I may judge from what I hear, your countrymen are not suited with your recall.

Let me hear from you on this subject as soon as you can. I may ask, and you may refuse to tell me, ー Are we well provided with Warlike Stores? Shall we have, or can we have if desired Foreign Aid? What are French troops to do in the West Indies? Is there a channel of communication open with our friends at home?

By the public accounts there is some prospect of a rupture at hand. Can the British Nation suffer such wicked work, and tamely look on? I am, Dear Sir [&c.]