Letter listing for 1770–1779
- Jean Le Rond d’Alembert to Voltaire [François Marie Arouet], 2 July 1770
- Board of Trade Journal extract by Lords Commissioners of Trade and Foreign Plantations [Board of Trade], 2 July 1770
- Marie Louise Denis [née Mignot] and Voltaire [François Marie Arouet] to Alexandre Marie François de Paule de Dompierre d’Hornoy, 3 July 1770
- Voltaire [François Marie Arouet] to Louis Gaspard Fabry, 3 July 1770
- Jean Jacques Rousseau to Marc Antoine Louis Claret de La Tourrette, 4 July 1770
- Voltaire [François Marie Arouet] to Catherine II, czarina of Russia [the Great], 4 July 1770
- Voltaire [François Marie Arouet] to Pierre Michel Hennin, 4 July 1770
- David Hume to Reverend John Douglas, bishop of Salisbury, 5 July 1770
- Jean Jacques Rousseau to Julie Anne Marie Boy de La Tour [née Roguin], 5 July 1770
- Pierre Michel Hennin to Voltaire [François Marie Arouet], 6 July 1770
- Wills Hill, 1st earl of Hillsborough to Norborne Berkeley, 4th Baron Botetourt, 6 July 1770
- Jean Le Rond d’Alembert to Frederick II, king of Prussia [the Great], 6 July 1770
- Conseil de régence de Montbéliard to Karl Eugen von Württemberg, Herzog von Württemberg, 6 July 1770
- Voltaire [François Marie Arouet] to Louis Jean Desprez, 6 July 1770
- Voltaire [François Marie Arouet] to Louis Gaspard Fabry, 6 July 1770