During Mr. Pope's war with Theobald, Concanen, and the rest of their tribe, Mr. Warburton, the present Lord Bishop of Gloucester, did with great zeal cultivate their friendship; having been introduced, forsooth, at the meetings of that respectable confederacy: a favour which he afterwards spoke of in very high terms of complacency and thankfulness. At the same time in his intercourse with them he treated Mr. Pope in a most contemptuous manner, and as a writer without genius. Of the truth of these assertions his Lordship can have no doubt, if he recollects his own correspondence with Concanen; a part of which is still in being, and will probably be remembered as long as any of this prelate's writings. — The Letter was found about the year 1750, by Dr. Gawin Knight, first librarian to the British Museum, in fitting up a house which he had taken in Crane-court, Fleet-street. The house had, for a long time before, been let in lodgings, and in all probability Concanen had lodged there. The original letter has been many years in my possession, and is here most exactly copied, with its several little peculiarities in grammar, spelling, and punctuation.