The Universal Magazine of Knowledge and Pleasure: Containing News, Letters, Debates, Poetry, Musick, Biography, History, Geography ... and Other Arts and Sciences; which May Render it Instructive and Entertaining to Gentry, Merchants, Farmers, and Tradesmen. To which Occasionally Will be Added, an Impartial Account of Books in Several Languages, and of the State of Learning in Europe; Also of the Stage, New Opera's, Plays, and Oratorio's, Volume 91