The collection includes.
ff. 19, 22, 23, 27, 30, 39, 49, 55, 73 Charles Augustin de Ferriol, Comte d’Argental: Letters to, from Voltaire: 1762-1765.
ff. 36, 74, 91, 104 Jean Calas, of Toulouse: Letters to his widow, from Voltaire and the Comte de Tournay: 1762.: Fr.
ff. 62, 164 Cathala: Letters to, from Voltaire: 1762, 1763.: Fr.
ff. 83, 97, 102, 222-224, 226, 227, 230 Charles Augustin de Ferriol, Comte d’Argental: Letters to, from Voltaire: 1762-1765.
f. 104 Jean Louis Wagnière, Secretary to Voltaire: Letter to Madame Calas: 1762.: Fr.
ff. 106,182,218 Bernard Louis Chauvelin, Marquis; Ambassador to Turin: Letters to, from Voltaire: 1762, 1763.
f. 209 La Chalotais de), Procureur-Général of the Parliament of Bretagne: Letter to, from Voltaire: 1763.: Fr.
f. 225 Louis François Armand de Vignerot du Plessis, Maréchal, Duc de Richelieu: Letter to, from Voltaire: 1764. The following letters are also included: M. de Voltaire to M. Cathala; 26 July [1762], [24 Jan. 1763 ?], ff. 62, 164. The second letter autograph; Wagnière, secretaire de M. de Voltaire, to Madame Calas; Ferney, 14 Sept. 1762, f. 104; together with copies of letters of Voltaire to various persons respecting the Ca1as family. Inserted in the cover are two impressions of Voltaire’s seal. Paper; XVIIIth-XIXth centt.