Letter listing for 1770–1779
- Louise Félicité Robert [née Guynement de Kéralio] to Jacques Henri Bernardin de Saint-Pierre, 4 May 1777
- Pierre Augustin Caron de Beaumarchais to Charles Gravier, comte de Vergennes, 4 May 1777
- père André Morellet, abbé Morellet to William Petty, 1st marquess of Lansdowne [2nd earl of Shelburne], 4 May 1777
- Voltaire [François Marie Arouet] to Joseph Vasselier, 4 May 1777
- Jeremy Bentham to Sir Samuel Bentham, 6 May 1777
- Corilla Olimpica [Maria Maddelena Morelli Fernandez] to Giovanni Cristofano Amaduzzi, 6 May 1777
- Voltaire [François Marie Arouet] to François Jean de Beauvoir, marquis de Chastellux, 6 May 1777
- Voltaire [François Marie Arouet] to Jean Baptiste Isoard de Lisle, 6 May 1777
- Voltaire [François Marie Arouet] to Maréchal Louis François Armand de Vignerot du Plessis, 3rd duc de Richelieu, 6 May 1777
- Richard Brinsley Sheridan to Licencer of Plays, 7 May 1777
- Jeremy Bentham to Sir Samuel Bentham, 8 May 1777
- Adam Smith to Philip Stanhope, 2nd Earl Stanhope, 8 May 1777
- Adam Smith to Philip Stanhope, 2nd Earl Stanhope, 8 May 1777
- Le Courier de l’Europe to [unknown], 9 May 1777
- Voltaire [François Marie Arouet] to Jean Le Rond d’Alembert, 9 May 1777