This volume, which supplements the main chronological series of The Correspondence of Jeremy Bentham, contains 252 letters written to and from Jeremy Bentham, 19 letters written to and from individuals other than Bentham but containing material of biographical interest, and the will made by Bentham on 17 August 1785. The letters have either never before been published or been only partially published in previous volumes of The Correspondence. A large number of the letters were written by Bentham’s brother Samuel on his journey to Russia and during his sojourn in Russia, covering the years 1779 to 1791. This meticulously researched and richly annotated volume contains much new information of biographical interest and deepens our knowledge of Bentham’s relationship with his family, with the panopticon penitentiary scheme, and with such ‘disciples’ as Étienne Dumont, Henry Bickersteth, and Leicester Stanhope. Of particular interest will be correspondence with Prince Grigory Alexandrovich Potemkin, Sir Samuel Romilly, Jacques Pierre Brissot de Warville, and John Quincy Adams.