Letter listing for 1770–1779
- Voltaire [François Marie Arouet] to Jean Baptiste Nicolas de Lisle, chevalier de L’Isle, 4 July 1774
- Count Michel Wielhorski to Jean Le Rond d’Alembert, 4 July 1774
- [unknown] to Voltaire [François Marie Arouet], 5 July 1774
- Voltaire [François Marie Arouet] to Jean Chrysostome de Larcher, comte de La Touraille, 5 July 1774
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental, 6 July 1774
- Voltaire [François Marie Arouet] to Jean Baptiste Nicolas de Lisle, chevalier de L’Isle, 6 July 1774
- Voltaire [François Marie Arouet] to Gaspard Henry Schérer, 7 July 1774
- Voltaire [François Marie Arouet] to conte Paolo Emilio Campi, 8 July 1774
- Voltaire [François Marie Arouet] to Louise Florence Pétronille La Live, marquise d’Épinay [née Tardieu d'Esclavelles], 8 July 1774
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Horace Walpole, 4th earl of Orford, 9 July 1774
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], c. 10 July 1774
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Voltaire [François Marie Arouet], 13 July 1774
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Voltaire [François Marie Arouet], 13 July 1774
- Voltaire [François Marie Arouet] to Gaspard Henry Schérer, 13 July 1774
- Voltaire [François Marie Arouet] to François de Caire and Marie Elisabeth de Caire, 14 July 1774
