The essay I have before mentioned accompanies this letter. Allow me to thank you for your offer to do or say any thing I may wish respecting it, but you alone must decide whether its merits be sufficient to claim any other attention than the perusal of a friend. In drawing up this essay, I have endeavoured as much as possible to use my father's own words, yet had he lived to complete it himself, we may suppose he would have substituted something very different from the words of his rough notes, and that probably he would have given the whole a more perspicuous arrangement than I have done. In considering its merits, you must not permit it to go before the public if it appear to you trifling, or at all unworthy the high opinion you have ever so kindly expressed of my father: but should you think it worthy public notice, you are at liberty to present it to the Society of Antiquaries, with the accompanying plates of lead: which will be more usefully preserved in their collection, than in the cabinet of any private person.