Letter listing for 1770–1779
- Voltaire [François Marie Arouet] to Gaspard Henry Schérer, 22 March 1777
- Marie Jeanne Riccoboni [née de Heurles Laboras de Mezières] to Sir Robert Liston, 23 March 1777
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Horace Walpole, 4th earl of Orford, 23 March 1777
- Charles Gravier, comte de Vergennes to Louis XVI, king of France, 25 March 1777
- Rousseau en 1777, 25 March 1777
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 26 March 1777
- Charles Gravier, comte de Vergennes to Emmanuel Marie Louis de Noailles, marquis de Noailles, 27 March 1777
- père André Morellet, abbé Morellet to Société typographique de Neuchâtel, 27 March 1777
- M. — Leroy de Saltonaille to Voltaire [François Marie Arouet], 28 March 1777
- Voltaire [François Marie Arouet] to Maréchal Louis François Armand de Vignerot du Plessis, 3rd duc de Richelieu, 28 March 1777
- Giovanni Cristofano Amaduzzi to Corilla Olimpica [Maria Maddelena Morelli Fernandez], 29 March 1777
- Corilla Olimpica [Maria Maddelena Morelli Fernandez] to Giovanni Cristofano Amaduzzi, 29 March 1777
- Adam Smith to Philip Stanhope, 2nd Earl Stanhope, 29 March 1777
- Adam Smith to Philip Stanhope, 2nd Earl Stanhope, 29 March 1777
- Voltaire [François Marie Arouet] to Philippe Antoine de Claris, marquis de Florian, 29 March 1777